./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_hash_callback_c_str_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 e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:57:20,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:57:20,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:57:20,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:57:20,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:57:20,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:57:20,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:57:20,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:57:20,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:57:20,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:57:20,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:57:20,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:57:20,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:57:20,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:57:20,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:57:20,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:57:20,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:57:20,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:57:20,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:57:20,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:57:20,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:57:20,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:57:20,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:57:20,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:57:20,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:57:20,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:57:20,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:57:20,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:57:20,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:57:20,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:57:20,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:57:20,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:57:20,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:57:20,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:57:20,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:57:20,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:57:20,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:57:20,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:57:20,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:57:20,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:57:20,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:57:20,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:57:20,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:57:20,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:57:20,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:57:20,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:57:20,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:57:20,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:57:20,266 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:57:20,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:57:20,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:57:20,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:57:20,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:57:20,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:57:20,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:57:20,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:57:20,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:57:20,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:57:20,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:57:20,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:57:20,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:57:20,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:57:20,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:57:20,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:57:20,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:57:20,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:57:20,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:57:20,279 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:57:20,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:57:20,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:57:20,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:57:20,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-11-05 12:57:20,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:57:20,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:57:20,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:57:20,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:57:20,556 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:57:20,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:20,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240d64a68/cde60d2631ba4b9cae1ddd6b8ab478da/FLAGa91721db9 [2021-11-05 12:57:21,236 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:57:21,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:21,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240d64a68/cde60d2631ba4b9cae1ddd6b8ab478da/FLAGa91721db9 [2021-11-05 12:57:21,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240d64a68/cde60d2631ba4b9cae1ddd6b8ab478da [2021-11-05 12:57:21,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:57:21,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:57:21,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:57:21,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:57:21,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:57:21,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:57:21" (1/1) ... [2021-11-05 12:57:21,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550238e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:21, skipping insertion in model container [2021-11-05 12:57:21,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:57:21" (1/1) ... [2021-11-05 12:57:21,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:57:21,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:57:21,964 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_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-05 12:57:21,973 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_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-05 12:57:21,993 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:57:21,998 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:57:22,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,733 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:22,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:57:23,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:57:23,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:57:23,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:57:23,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:57:23,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:57:23,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:57:23,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:57:23,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:57:23,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:57:23,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:57:23,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:57:23,502 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:57:23,518 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_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-05 12:57:23,518 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_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-05 12:57:23,519 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:57:23,520 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:57:23,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:57:23,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:57:23,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:57:23,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:57:23,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:57:23,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:57:23,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:57:23,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:57:23,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:57:23,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:57:23,603 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:57:23,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:23,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:57:24,052 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:57:24,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24 WrapperNode [2021-11-05 12:57:24,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:57:24,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:57:24,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:57:24,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:57:24,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:57:24,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:57:24,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:57:24,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:57:24,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:57:24,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:57:24,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:57:24,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:57:24,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (1/1) ... [2021-11-05 12:57:24,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:57:24,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:57:24,349 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) [2021-11-05 12:57:24,375 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 [2021-11-05 12:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:57:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:57:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:57:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:57:24,925 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-11-05 12:57:24,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:57:24,930 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-05 12:57:24,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:24 BoogieIcfgContainer [2021-11-05 12:57:24,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:57:24,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:57:24,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:57:24,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:57:24,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:57:21" (1/3) ... [2021-11-05 12:57:24,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5de6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:57:24, skipping insertion in model container [2021-11-05 12:57:24,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:24" (2/3) ... [2021-11-05 12:57:24,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5de6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:57:24, skipping insertion in model container [2021-11-05 12:57:24,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:24" (3/3) ... [2021-11-05 12:57:24,936 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:24,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:57:24,939 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-05 12:57:24,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:57:24,978 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 [2021-11-05 12:57:24,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-05 12:57:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 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) [2021-11-05 12:57:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 12:57:24,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:24,996 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 12:57:24,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:25,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:25,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1599795525, now seen corresponding path program 1 times [2021-11-05 12:57:25,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:25,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270695189] [2021-11-05 12:57:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:25,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:25,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:57:25,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270695189] [2021-11-05 12:57:25,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270695189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:25,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:25,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:57:25,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859509015] [2021-11-05 12:57:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:25,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:57:25,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:57:25,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:57:25,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:57:25,342 INFO L87 Difference]: Start difference. First operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 12:57:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:25,354 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-11-05 12:57:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:57:25,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-05 12:57:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:25,362 INFO L225 Difference]: With dead ends: 106 [2021-11-05 12:57:25,362 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 12:57:25,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:57:25,371 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:25,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:57:25,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 12:57:25,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 12:57:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 49 states have internal predecessors, (51), 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) [2021-11-05 12:57:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-11-05 12:57:25,393 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 25 [2021-11-05 12:57:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:25,394 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-11-05 12:57:25,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 12:57:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-11-05 12:57:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 12:57:25,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:25,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:25,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:57:25,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:25,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1892036256, now seen corresponding path program 1 times [2021-11-05 12:57:25,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:25,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490542489] [2021-11-05 12:57:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:25,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:25,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:57:25,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490542489] [2021-11-05 12:57:25,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490542489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:25,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:25,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:57:25,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140315689] [2021-11-05 12:57:25,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:25,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:57:25,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:57:25,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:57:25,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:57:25,612 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-11-05 12:57:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:25,770 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-11-05 12:57:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:57:25,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 26 [2021-11-05 12:57:25,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:25,773 INFO L225 Difference]: With dead ends: 67 [2021-11-05 12:57:25,773 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 12:57:25,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 112.40ms TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:57:25,778 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 160 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.65ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.73ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:25,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 157 Invalid, 67 Unknown, 0 Unchecked, 7.65ms Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 41.73ms Time] [2021-11-05 12:57:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 12:57:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 12:57:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 49 states have internal predecessors, (50), 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) [2021-11-05 12:57:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-05 12:57:25,791 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 26 [2021-11-05 12:57:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:25,792 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-05 12:57:25,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-11-05 12:57:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-05 12:57:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 12:57:25,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:25,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:25,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:57:25,793 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:25,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1472602148, now seen corresponding path program 1 times [2021-11-05 12:57:25,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:25,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478637320] [2021-11-05 12:57:25,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:25,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:25,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:57:25,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478637320] [2021-11-05 12:57:25,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478637320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:25,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:25,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-05 12:57:25,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865610689] [2021-11-05 12:57:25,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:25,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:57:25,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:57:25,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:57:25,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:57:25,983 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2021-11-05 12:57:26,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:26,187 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-11-05 12:57:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 12:57:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 27 [2021-11-05 12:57:26,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:26,189 INFO L225 Difference]: With dead ends: 50 [2021-11-05 12:57:26,189 INFO L226 Difference]: Without dead ends: 48 [2021-11-05 12:57:26,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 157.79ms TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-05 12:57:26,191 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 156 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.04ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.85ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:26,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 188 Invalid, 117 Unknown, 0 Unchecked, 3.04ms Time], IncrementalHoareTripleChecker [27 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 69.85ms Time] [2021-11-05 12:57:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-05 12:57:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-05 12:57:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 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) [2021-11-05 12:57:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-11-05 12:57:26,199 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 27 [2021-11-05 12:57:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:26,200 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-11-05 12:57:26,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2021-11-05 12:57:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-11-05 12:57:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 12:57:26,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:26,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:26,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:57:26,201 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash -788472151, now seen corresponding path program 1 times [2021-11-05 12:57:26,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:26,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691196832] [2021-11-05 12:57:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:26,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:26,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:57:26,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691196832] [2021-11-05 12:57:26,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691196832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:26,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:26,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:57:26,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301009297] [2021-11-05 12:57:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:26,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:57:26,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:57:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:57:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:57:26,415 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-11-05 12:57:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:26,517 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-11-05 12:57:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 12:57:26,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-11-05 12:57:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:26,519 INFO L225 Difference]: With dead ends: 48 [2021-11-05 12:57:26,519 INFO L226 Difference]: Without dead ends: 46 [2021-11-05 12:57:26,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 78.10ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-11-05 12:57:26,521 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 126 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.22ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:26,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 152 Invalid, 58 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 40.22ms Time] [2021-11-05 12:57:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-05 12:57:26,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-05 12:57:26,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 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) [2021-11-05 12:57:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-11-05 12:57:26,529 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 31 [2021-11-05 12:57:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:26,529 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-11-05 12:57:26,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-11-05 12:57:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-11-05 12:57:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 12:57:26,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:26,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:26,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:57:26,532 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:26,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1439752775, now seen corresponding path program 1 times [2021-11-05 12:57:26,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:26,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559201231] [2021-11-05 12:57:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:26,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:26,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:57:26,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559201231] [2021-11-05 12:57:26,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559201231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:26,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:26,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:57:26,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883334272] [2021-11-05 12:57:26,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:26,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:57:26,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:57:26,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:57:26,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:57:26,971 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-11-05 12:57:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:27,091 INFO L93 Difference]: Finished difference Result 70 states and 69 transitions. [2021-11-05 12:57:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 12:57:27,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 36 [2021-11-05 12:57:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:27,092 INFO L225 Difference]: With dead ends: 70 [2021-11-05 12:57:27,092 INFO L226 Difference]: Without dead ends: 46 [2021-11-05 12:57:27,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 103.29ms TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:57:27,093 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 212 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.85ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:27,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 193 Invalid, 78 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 41.85ms Time] [2021-11-05 12:57:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-05 12:57:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-05 12:57:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0) internal successors, (45), 45 states have internal predecessors, (45), 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) [2021-11-05 12:57:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-11-05 12:57:27,096 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-11-05 12:57:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:27,096 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-11-05 12:57:27,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-11-05 12:57:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-11-05 12:57:27,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 12:57:27,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:27,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:27,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:57:27,098 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:27,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:27,098 INFO L85 PathProgramCache]: Analyzing trace with hash -740992344, now seen corresponding path program 1 times [2021-11-05 12:57:27,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:57:27,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879049503] [2021-11-05 12:57:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:27,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:57:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 12:57:27,289 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 12:57:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 12:57:27,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-05 12:57:27,519 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 12:57:27,520 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-05 12:57:27,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-05 12:57:27,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-05 12:57:27,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:57:27,525 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-05 12:57:27,526 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 12:57:27,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 12:57:27 BoogieIcfgContainer [2021-11-05 12:57:27,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 12:57:27,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 12:57:27,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 12:57:27,583 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 12:57:27,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:24" (3/4) ... [2021-11-05 12:57:27,585 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 12:57:27,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 12:57:27,586 INFO L158 Benchmark]: Toolchain (without parser) took 5953.72ms. Allocated memory was 54.5MB in the beginning and 209.7MB in the end (delta: 155.2MB). Free memory was 30.8MB in the beginning and 111.7MB in the end (delta: -80.9MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,586 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:57:27,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2418.56ms. Allocated memory was 54.5MB in the beginning and 113.2MB in the end (delta: 58.7MB). Free memory was 30.5MB in the beginning and 49.7MB in the end (delta: -19.2MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.68ms. Allocated memory is still 113.2MB. Free memory was 49.7MB in the beginning and 38.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,587 INFO L158 Benchmark]: Boogie Preprocessor took 79.78ms. Allocated memory is still 113.2MB. Free memory was 38.1MB in the beginning and 54.0MB in the end (delta: -15.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,587 INFO L158 Benchmark]: RCFGBuilder took 610.83ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 54.0MB in the beginning and 82.7MB in the end (delta: -28.7MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,587 INFO L158 Benchmark]: TraceAbstraction took 2650.37ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 82.7MB in the beginning and 112.7MB in the end (delta: -30.0MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. [2021-11-05 12:57:27,587 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 209.7MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:57:27,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2418.56ms. Allocated memory was 54.5MB in the beginning and 113.2MB in the end (delta: 58.7MB). Free memory was 30.5MB in the beginning and 49.7MB in the end (delta: -19.2MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.68ms. Allocated memory is still 113.2MB. Free memory was 49.7MB in the beginning and 38.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.78ms. Allocated memory is still 113.2MB. Free memory was 38.1MB in the beginning and 54.0MB in the end (delta: -15.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.83ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 54.0MB in the beginning and 82.7MB in the end (delta: -28.7MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2650.37ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 82.7MB in the beginning and 112.7MB in the end (delta: -30.0MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 209.7MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of strcmp at line 10798, overapproximation of strlen at line 11324. Possible FailurePath: [L6879-L6884] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7634-L7646] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6839] return str; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L11318] const char *str1 = ensure_c_str_is_allocated(64); [L261] return __VERIFIER_nondet_bool(); [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6839] return str; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L11319] const char *str2 = nondet_bool() ? str1 : ensure_c_str_is_allocated(64); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10799] return rval; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L11321-L11322] _Bool rval = aws_hash_callback_c_str_eq(str1, str2); [L11323] COND TRUE \read(rval) [L11324] size_t len = strlen(str1); [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L7114-L7117] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L7119] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L7123] a[i] [L7123] b[i] [L223] COND TRUE !cond VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L223] reach_error() VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2553.55ms, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 11.81ms, AutomataDifference: 662.54ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.82ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 654 SdHoareTripleChecker+Valid, 193.66ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 654 mSDsluCounter, 748 SdHoareTripleChecker+Invalid, 164.26ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 551 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 197 mSDtfsCounter, 261 mSolverCounterSat, 13.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 451.60ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 37.13ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.77ms SsaConstructionTime, 690.61ms SatisfiabilityAnalysisTime, 692.26ms InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-05 12:57:27,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_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 e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:57:29,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:57:29,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:57:29,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:57:29,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:57:29,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:57:29,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:57:29,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:57:29,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:57:29,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:57:29,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:57:29,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:57:29,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:57:29,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:57:29,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:57:29,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:57:29,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:57:29,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:57:29,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:57:29,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:57:29,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:57:29,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:57:29,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:57:29,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:57:29,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:57:29,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:57:29,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:57:29,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:57:29,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:57:29,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:57:29,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:57:29,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:57:29,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:57:29,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:57:29,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:57:29,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:57:29,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:57:29,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:57:29,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:57:29,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:57:29,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:57:29,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 12:57:29,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:57:29,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:57:29,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:57:29,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:57:29,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:57:29,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:57:29,261 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:57:29,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:57:29,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:57:29,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:57:29,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:57:29,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:57:29,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 12:57:29,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 12:57:29,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:57:29,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:57:29,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:57:29,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:57:29,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:57:29,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:57:29,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:57:29,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:57:29,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:57:29,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:57:29,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:57:29,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 12:57:29,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-11-05 12:57:29,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:57:29,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:57:29,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:57:29,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:57:29,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:57:29,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:29,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0201a4c/bbc2ad9cabed4d97b506e4e1bf073f5b/FLAG9b6d6876f [2021-11-05 12:57:30,226 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:57:30,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:30,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0201a4c/bbc2ad9cabed4d97b506e4e1bf073f5b/FLAG9b6d6876f [2021-11-05 12:57:30,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0201a4c/bbc2ad9cabed4d97b506e4e1bf073f5b [2021-11-05 12:57:30,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:57:30,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:57:30,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:57:30,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:57:30,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:57:30,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:57:30" (1/1) ... [2021-11-05 12:57:30,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a5b930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:30, skipping insertion in model container [2021-11-05 12:57:30,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:57:30" (1/1) ... [2021-11-05 12:57:30,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:57:30,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:57:30,747 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_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-05 12:57:30,756 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_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-05 12:57:30,776 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:57:30,783 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:57:31,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:57:31,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:57:31,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:57:31,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:57:31,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:57:31,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:57:31,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:57:31,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:57:31,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:57:31,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:57:31,779 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:57:31,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:31,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:57:32,193 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:57:32,209 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_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-05 12:57:32,210 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_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-05 12:57:32,211 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:57:32,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:57:32,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:57:32,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:57:32,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:57:32,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:57:32,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:57:32,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:57:32,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:57:32,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:57:32,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:57:32,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:57:32,285 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:57:32,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:57:32,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:57:32,742 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:57:32,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32 WrapperNode [2021-11-05 12:57:32,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:57:32,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:57:32,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:57:32,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:57:32,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:57:32,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:57:32,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:57:32,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:57:32,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:32,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:57:32,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:57:32,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:57:32,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:57:32,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (1/1) ... [2021-11-05 12:57:33,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:57:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:57:33,028 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) [2021-11-05 12:57:33,051 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 [2021-11-05 12:57:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:57:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:57:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:57:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:57:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 12:57:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 12:57:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:57:33,744 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-11-05 12:57:33,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:57:33,754 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-05 12:57:33,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:33 BoogieIcfgContainer [2021-11-05 12:57:33,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:57:33,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:57:33,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:57:33,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:57:33,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:57:30" (1/3) ... [2021-11-05 12:57:33,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f633777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:57:33, skipping insertion in model container [2021-11-05 12:57:33,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:57:32" (2/3) ... [2021-11-05 12:57:33,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f633777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:57:33, skipping insertion in model container [2021-11-05 12:57:33,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:33" (3/3) ... [2021-11-05 12:57:33,763 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-11-05 12:57:33,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:57:33,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-05 12:57:33,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:57:33,810 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 [2021-11-05 12:57:33,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-05 12:57:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 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) [2021-11-05 12:57:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 12:57:33,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:33,826 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 12:57:33,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:33,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1599795525, now seen corresponding path program 1 times [2021-11-05 12:57:33,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:33,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936035177] [2021-11-05 12:57:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:33,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:33,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:33,845 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) [2021-11-05 12:57:33,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 12:57:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:34,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 12:57:34,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:57:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:34,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:57:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:34,215 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:57:34,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936035177] [2021-11-05 12:57:34,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936035177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:34,216 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:34,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 12:57:34,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990752883] [2021-11-05 12:57:34,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:34,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:57:34,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:57:34,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:57:34,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:57:34,238 INFO L87 Difference]: Start difference. First operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 12:57:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:34,250 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-11-05 12:57:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:57:34,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-05 12:57:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:34,256 INFO L225 Difference]: With dead ends: 106 [2021-11-05 12:57:34,256 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 12:57:34,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.19ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:57:34,260 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:34,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.53ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:57:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 12:57:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 12:57:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 49 states have internal predecessors, (51), 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) [2021-11-05 12:57:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-11-05 12:57:34,308 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 25 [2021-11-05 12:57:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:34,308 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-11-05 12:57:34,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 12:57:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-11-05 12:57:34,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 12:57:34,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:34,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:34,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:34,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:34,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:34,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1892036256, now seen corresponding path program 1 times [2021-11-05 12:57:34,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:34,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178356265] [2021-11-05 12:57:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:34,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:34,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:57:34,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 12:57:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:34,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 12:57:34,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:57:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:34,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:57:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:34,955 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:57:34,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178356265] [2021-11-05 12:57:34,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178356265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:34,957 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:34,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2021-11-05 12:57:34,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806886267] [2021-11-05 12:57:34,957 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:34,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:57:34,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:57:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:57:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:57:34,961 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-11-05 12:57:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:35,215 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-11-05 12:57:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:57:35,217 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 26 [2021-11-05 12:57:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:35,218 INFO L225 Difference]: With dead ends: 67 [2021-11-05 12:57:35,218 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 12:57:35,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 178.98ms TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-11-05 12:57:35,219 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 163 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.05ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.95ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:35,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 157 Invalid, 68 Unknown, 0 Unchecked, 5.05ms Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 91.95ms Time] [2021-11-05 12:57:35,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 12:57:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 12:57:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 49 states have internal predecessors, (50), 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) [2021-11-05 12:57:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-05 12:57:35,228 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 26 [2021-11-05 12:57:35,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:35,229 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-05 12:57:35,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-11-05 12:57:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-05 12:57:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 12:57:35,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:35,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:35,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:35,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:35,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:35,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:35,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1472602148, now seen corresponding path program 1 times [2021-11-05 12:57:35,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:35,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114653105] [2021-11-05 12:57:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:35,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:35,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:35,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:57:35,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 12:57:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:35,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-05 12:57:35,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:57:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:35,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:57:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:35,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:57:35,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114653105] [2021-11-05 12:57:35,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114653105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:35,864 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:35,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 13 [2021-11-05 12:57:35,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241011393] [2021-11-05 12:57:35,864 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:35,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 12:57:35,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:57:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 12:57:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:57:35,865 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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) [2021-11-05 12:57:36,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:36,200 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-11-05 12:57:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 12:57:36,200 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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 27 [2021-11-05 12:57:36,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:36,201 INFO L225 Difference]: With dead ends: 50 [2021-11-05 12:57:36,201 INFO L226 Difference]: Without dead ends: 48 [2021-11-05 12:57:36,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 280.82ms TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2021-11-05 12:57:36,202 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 177 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.95ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.72ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:36,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 211 Invalid, 139 Unknown, 0 Unchecked, 2.95ms Time], IncrementalHoareTripleChecker [32 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 118.72ms Time] [2021-11-05 12:57:36,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-05 12:57:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-05 12:57:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 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) [2021-11-05 12:57:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-11-05 12:57:36,207 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 27 [2021-11-05 12:57:36,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:36,207 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-11-05 12:57:36,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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) [2021-11-05 12:57:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-11-05 12:57:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 12:57:36,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:36,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:36,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:36,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:36,408 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash -788472151, now seen corresponding path program 1 times [2021-11-05 12:57:36,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:36,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112057810] [2021-11-05 12:57:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:36,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:36,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:36,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:57:36,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 12:57:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:36,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-05 12:57:36,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:57:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:36,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:57:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:37,002 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:57:37,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112057810] [2021-11-05 12:57:37,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112057810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:37,002 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:37,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 12 [2021-11-05 12:57:37,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537316363] [2021-11-05 12:57:37,003 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:37,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 12:57:37,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:57:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 12:57:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:57:37,004 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-05 12:57:37,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:37,293 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-11-05 12:57:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 12:57:37,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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 31 [2021-11-05 12:57:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:37,295 INFO L225 Difference]: With dead ends: 72 [2021-11-05 12:57:37,295 INFO L226 Difference]: Without dead ends: 70 [2021-11-05 12:57:37,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 247.50ms TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2021-11-05 12:57:37,296 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 229 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.42ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.20ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:37,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 228 Invalid, 98 Unknown, 0 Unchecked, 1.42ms Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 100.20ms Time] [2021-11-05 12:57:37,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-05 12:57:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 46. [2021-11-05 12:57:37,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 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) [2021-11-05 12:57:37,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-11-05 12:57:37,300 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 31 [2021-11-05 12:57:37,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:37,300 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-11-05 12:57:37,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-05 12:57:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-11-05 12:57:37,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 12:57:37,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:37,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:37,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:37,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:37,511 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1439752775, now seen corresponding path program 1 times [2021-11-05 12:57:37,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:37,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645215884] [2021-11-05 12:57:37,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:37,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:37,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:37,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:57:37,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 12:57:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:57:37,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-05 12:57:37,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:57:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:37,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:57:37,902 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-05 12:57:37,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2021-11-05 12:57:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:57:38,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:57:38,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645215884] [2021-11-05 12:57:38,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645215884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:57:38,031 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:57:38,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-05 12:57:38,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592673541] [2021-11-05 12:57:38,031 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:57:38,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:57:38,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:57:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:57:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:57:38,033 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-11-05 12:57:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:57:38,141 INFO L93 Difference]: Finished difference Result 70 states and 69 transitions. [2021-11-05 12:57:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:57:38,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 36 [2021-11-05 12:57:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:57:38,142 INFO L225 Difference]: With dead ends: 70 [2021-11-05 12:57:38,142 INFO L226 Difference]: Without dead ends: 46 [2021-11-05 12:57:38,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.70ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:57:38,143 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 19 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.77ms IncrementalHoareTripleChecker+Time [2021-11-05 12:57:38,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 200 Invalid, 37 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 76.77ms Time] [2021-11-05 12:57:38,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-05 12:57:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-05 12:57:38,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0) internal successors, (45), 45 states have internal predecessors, (45), 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) [2021-11-05 12:57:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-11-05 12:57:38,146 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-11-05 12:57:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:57:38,146 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-11-05 12:57:38,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-11-05 12:57:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-11-05 12:57:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 12:57:38,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:57:38,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:57:38,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:38,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:38,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 12:57:38,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:57:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash -740992344, now seen corresponding path program 1 times [2021-11-05 12:57:38,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:57:38,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324056785] [2021-11-05 12:57:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:57:38,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:57:38,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:57:38,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:57:38,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 12:57:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 12:57:38,904 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 12:57:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 12:57:39,925 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-05 12:57:39,926 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 12:57:39,926 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-05 12:57:39,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-05 12:57:39,943 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-05 12:57:39,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 12:57:40,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:57:40,147 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-05 12:57:40,149 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 12:57:40,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 12:57:40 BoogieIcfgContainer [2021-11-05 12:57:40,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 12:57:40,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 12:57:40,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 12:57:40,202 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 12:57:40,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:57:33" (3/4) ... [2021-11-05 12:57:40,211 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 12:57:40,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 12:57:40,212 INFO L158 Benchmark]: Toolchain (without parser) took 9817.21ms. Allocated memory was 56.6MB in the beginning and 199.2MB in the end (delta: 142.6MB). Free memory was 35.6MB in the beginning and 113.1MB in the end (delta: -77.5MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,212 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:57:40,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2348.18ms. Allocated memory was 56.6MB in the beginning and 153.1MB in the end (delta: 96.5MB). Free memory was 35.3MB in the beginning and 62.5MB in the end (delta: -27.2MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.60ms. Allocated memory is still 153.1MB. Free memory was 62.5MB in the beginning and 90.0MB in the end (delta: -27.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,212 INFO L158 Benchmark]: Boogie Preprocessor took 69.57ms. Allocated memory is still 153.1MB. Free memory was 90.0MB in the beginning and 84.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,213 INFO L158 Benchmark]: RCFGBuilder took 761.04ms. Allocated memory is still 153.1MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,213 INFO L158 Benchmark]: TraceAbstraction took 6444.23ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 82.2MB in the beginning and 113.1MB in the end (delta: -30.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-05 12:57:40,213 INFO L158 Benchmark]: Witness Printer took 8.92ms. Allocated memory is still 199.2MB. Free memory was 113.1MB in the beginning and 113.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:57:40,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2348.18ms. Allocated memory was 56.6MB in the beginning and 153.1MB in the end (delta: 96.5MB). Free memory was 35.3MB in the beginning and 62.5MB in the end (delta: -27.2MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.60ms. Allocated memory is still 153.1MB. Free memory was 62.5MB in the beginning and 90.0MB in the end (delta: -27.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.57ms. Allocated memory is still 153.1MB. Free memory was 90.0MB in the beginning and 84.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 761.04ms. Allocated memory is still 153.1MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6444.23ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 82.2MB in the beginning and 113.1MB in the end (delta: -30.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 8.92ms. Allocated memory is still 199.2MB. Free memory was 113.1MB in the beginning and 113.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of strcmp at line 10798, overapproximation of strlen at line 11324. Possible FailurePath: [L6879-L6884] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7634-L7646] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L6839] return str; VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L11318] const char *str1 = ensure_c_str_is_allocated(64); [L261] return __VERIFIER_nondet_bool(); [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L6839] return str; VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L11319] const char *str2 = nondet_bool() ? str1 : ensure_c_str_is_allocated(64); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L10799] return rval; VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L11321-L11322] _Bool rval = aws_hash_callback_c_str_eq(str1, str2); [L11323] COND TRUE \read(rval) [L11324] size_t len = strlen(str1); [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L7114-L7117] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L7119] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L7123] a[i] [L7123] b[i] [L223] COND TRUE !cond VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] [L223] reach_error() VAL [s_can_fail_allocator_static={-21:0}, s_tolower_table={-1:0}] - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6343.95ms, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 9.74ms, AutomataDifference: 1044.24ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.69ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 588 SdHoareTripleChecker+Valid, 387.63ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 588 mSDsluCounter, 854 SdHoareTripleChecker+Invalid, 326.24ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 650 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 204 mSDtfsCounter, 266 mSolverCounterSat, 10.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 764.19ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 56.05ms AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 104.93ms SsaConstructionTime, 1076.36ms SatisfiabilityAnalysisTime, 1396.35ms InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 1013 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1933 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-05 12:57:40,257 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: UNKNOWN: Overapproximated counterexample