./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_string_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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 13:59:01,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 13:59:01,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 13:59:01,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 13:59:01,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 13:59:01,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 13:59:01,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 13:59:01,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 13:59:01,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 13:59:01,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 13:59:01,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 13:59:01,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 13:59:01,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 13:59:01,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 13:59:01,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 13:59:01,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 13:59:01,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 13:59:01,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 13:59:01,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 13:59:01,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 13:59:01,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 13:59:01,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 13:59:01,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 13:59:01,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 13:59:01,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 13:59:01,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 13:59:01,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 13:59:01,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 13:59:01,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 13:59:01,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 13:59:01,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 13:59:01,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 13:59:01,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 13:59:01,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 13:59:01,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 13:59:01,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 13:59:01,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 13:59:01,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 13:59:01,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 13:59:01,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 13:59:01,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 13:59:01,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 13:59:01,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 13:59:01,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 13:59:01,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 13:59:01,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 13:59:01,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 13:59:01,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 13:59:01,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 13:59:01,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 13:59:01,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 13:59:01,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 13:59:01,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 13:59:01,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:59:01,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 13:59:01,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 13:59:01,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 13:59:01,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 13:59:01,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-12-22 13:59:01,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 13:59:01,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 13:59:01,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 13:59:01,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 13:59:01,685 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 13:59:01,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-22 13:59:01,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495412c88/761234c5db7843748269229102ac3b74/FLAGf09e731cc [2021-12-22 13:59:02,362 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 13:59:02,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-22 13:59:02,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495412c88/761234c5db7843748269229102ac3b74/FLAGf09e731cc [2021-12-22 13:59:02,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495412c88/761234c5db7843748269229102ac3b74 [2021-12-22 13:59:02,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 13:59:02,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 13:59:02,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 13:59:02,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 13:59:02,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 13:59:02,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:59:02" (1/1) ... [2021-12-22 13:59:02,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3874b7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:02, skipping insertion in model container [2021-12-22 13:59:02,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:59:02" (1/1) ... [2021-12-22 13:59:02,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 13:59:02,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 13:59:02,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-22 13:59:02,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-22 13:59:03,402 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,404 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,404 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,405 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,407 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,433 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,437 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,437 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,679 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 13:59:03,680 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 13:59:03,681 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 13:59:03,681 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 13:59:03,682 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 13:59:03,683 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 13:59:03,683 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 13:59:03,684 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 13:59:03,684 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 13:59:03,685 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 13:59:03,818 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 13:59:03,922 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:03,923 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,109 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,109 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,117 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,117 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,128 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,129 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,129 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,130 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,131 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,131 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,132 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:59:04,209 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 13:59:04,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-22 13:59:04,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-22 13:59:04,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,267 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,267 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,268 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,268 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,286 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 13:59:04,287 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 13:59:04,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 13:59:04,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 13:59:04,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 13:59:04,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 13:59:04,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 13:59:04,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 13:59:04,290 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 13:59:04,290 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 13:59:04,301 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 13:59:04,360 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,360 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,416 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,417 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,425 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,425 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,428 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,428 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,433 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:59:04,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:59:04,653 INFO L208 MainTranslator]: Completed translation [2021-12-22 13:59:04,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04 WrapperNode [2021-12-22 13:59:04,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 13:59:04,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 13:59:04,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 13:59:04,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 13:59:04,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,884 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2021-12-22 13:59:04,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 13:59:04,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 13:59:04,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 13:59:04,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 13:59:04,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 13:59:04,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 13:59:04,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 13:59:04,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 13:59:04,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (1/1) ... [2021-12-22 13:59:04,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:59:04,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:59:04,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 13:59:04,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 13:59:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 13:59:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-22 13:59:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 13:59:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-12-22 13:59:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-22 13:59:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-22 13:59:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2021-12-22 13:59:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2021-12-22 13:59:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 13:59:05,211 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 13:59:05,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 13:59:05,414 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2021-12-22 13:59:05,423 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 13:59:05,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 13:59:05,432 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 13:59:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:59:05 BoogieIcfgContainer [2021-12-22 13:59:05,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 13:59:05,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 13:59:05,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 13:59:05,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 13:59:05,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:59:02" (1/3) ... [2021-12-22 13:59:05,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433e0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:59:05, skipping insertion in model container [2021-12-22 13:59:05,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:59:04" (2/3) ... [2021-12-22 13:59:05,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433e0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:59:05, skipping insertion in model container [2021-12-22 13:59:05,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:59:05" (3/3) ... [2021-12-22 13:59:05,441 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2021-12-22 13:59:05,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 13:59:05,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 13:59:05,484 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 13:59:05,499 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 13:59:05,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 13:59:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-12-22 13:59:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 13:59:05,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:59:05,525 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:59:05,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:59:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:59:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2021-12-22 13:59:05,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:59:05,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011970354] [2021-12-22 13:59:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:05,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:59:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:59:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 13:59:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 13:59:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 13:59:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 13:59:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 13:59:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 13:59:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 13:59:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-22 13:59:06,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:59:06,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011970354] [2021-12-22 13:59:06,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011970354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:59:06,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:59:06,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 13:59:06,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268835519] [2021-12-22 13:59:06,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:59:06,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 13:59:06,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:59:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 13:59:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 13:59:06,102 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 13:59:06,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:59:06,286 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2021-12-22 13:59:06,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 13:59:06,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2021-12-22 13:59:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:59:06,294 INFO L225 Difference]: With dead ends: 217 [2021-12-22 13:59:06,294 INFO L226 Difference]: Without dead ends: 104 [2021-12-22 13:59:06,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 13:59:06,299 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 68 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 13:59:06,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 13:59:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-22 13:59:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-12-22 13:59:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-12-22 13:59:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2021-12-22 13:59:06,355 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2021-12-22 13:59:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:59:06,356 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2021-12-22 13:59:06,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 13:59:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2021-12-22 13:59:06,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-22 13:59:06,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:59:06,359 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:59:06,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 13:59:06,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:59:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:59:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2021-12-22 13:59:06,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:59:06,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260656761] [2021-12-22 13:59:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:06,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:59:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:59:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 13:59:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 13:59:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 13:59:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 13:59:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 13:59:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 13:59:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 13:59:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 13:59:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-22 13:59:06,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:59:06,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260656761] [2021-12-22 13:59:06,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260656761] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 13:59:06,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179520229] [2021-12-22 13:59:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:06,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:59:06,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:59:06,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 13:59:06,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 13:59:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:07,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-22 13:59:07,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:59:07,410 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 13:59:07,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 13:59:07,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179520229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:59:07,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 13:59:07,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2021-12-22 13:59:07,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519178052] [2021-12-22 13:59:07,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:59:07,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 13:59:07,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:59:07,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 13:59:07,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2021-12-22 13:59:07,414 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-22 13:59:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:59:07,646 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2021-12-22 13:59:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 13:59:07,647 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 96 [2021-12-22 13:59:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:59:07,649 INFO L225 Difference]: With dead ends: 192 [2021-12-22 13:59:07,649 INFO L226 Difference]: Without dead ends: 144 [2021-12-22 13:59:07,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-12-22 13:59:07,650 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 13:59:07,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1497 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 13:59:07,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-12-22 13:59:07,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2021-12-22 13:59:07,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-22 13:59:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2021-12-22 13:59:07,662 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2021-12-22 13:59:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:59:07,663 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2021-12-22 13:59:07,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-22 13:59:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2021-12-22 13:59:07,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 13:59:07,665 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:59:07,665 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:59:07,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 13:59:07,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:59:07,883 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:59:07,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:59:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2021-12-22 13:59:07,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:59:07,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660105737] [2021-12-22 13:59:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:07,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:59:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:59:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 13:59:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 13:59:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 13:59:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 13:59:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 13:59:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 13:59:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 13:59:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 13:59:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 13:59:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 13:59:08,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:59:08,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660105737] [2021-12-22 13:59:08,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660105737] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 13:59:08,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564088033] [2021-12-22 13:59:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:08,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:59:08,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:59:08,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 13:59:08,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 13:59:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:08,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-22 13:59:08,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:59:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 13:59:08,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 13:59:08,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564088033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:59:08,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 13:59:08,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2021-12-22 13:59:08,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258068578] [2021-12-22 13:59:08,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:59:08,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 13:59:08,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:59:09,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 13:59:09,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2021-12-22 13:59:09,000 INFO L87 Difference]: Start difference. First operand 117 states and 152 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-22 13:59:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:59:09,247 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2021-12-22 13:59:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 13:59:09,247 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) Word has length 105 [2021-12-22 13:59:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:59:09,252 INFO L225 Difference]: With dead ends: 209 [2021-12-22 13:59:09,252 INFO L226 Difference]: Without dead ends: 174 [2021-12-22 13:59:09,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2021-12-22 13:59:09,255 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 151 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 13:59:09,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1597 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 13:59:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-12-22 13:59:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2021-12-22 13:59:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 78 states have internal predecessors, (90), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-12-22 13:59:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2021-12-22 13:59:09,279 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2021-12-22 13:59:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:59:09,281 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2021-12-22 13:59:09,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-22 13:59:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2021-12-22 13:59:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 13:59:09,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:59:09,289 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:59:09,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 13:59:09,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-22 13:59:09,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:59:09,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:59:09,509 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2021-12-22 13:59:09,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:59:09,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458430973] [2021-12-22 13:59:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:09,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:59:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:59:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 13:59:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 13:59:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 13:59:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 13:59:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 13:59:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 13:59:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 13:59:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 13:59:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 13:59:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 13:59:09,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:59:09,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458430973] [2021-12-22 13:59:09,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458430973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:59:09,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:59:09,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 13:59:09,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886580589] [2021-12-22 13:59:09,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:59:09,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 13:59:09,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:59:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 13:59:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 13:59:09,738 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-22 13:59:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:59:10,004 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2021-12-22 13:59:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 13:59:10,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 106 [2021-12-22 13:59:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:59:10,008 INFO L225 Difference]: With dead ends: 213 [2021-12-22 13:59:10,008 INFO L226 Difference]: Without dead ends: 160 [2021-12-22 13:59:10,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-22 13:59:10,010 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 82 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 13:59:10,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 518 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 13:59:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-22 13:59:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2021-12-22 13:59:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-12-22 13:59:10,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2021-12-22 13:59:10,028 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2021-12-22 13:59:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:59:10,029 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2021-12-22 13:59:10,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-22 13:59:10,029 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2021-12-22 13:59:10,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 13:59:10,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:59:10,032 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:59:10,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 13:59:10,032 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:59:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:59:10,033 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2021-12-22 13:59:10,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:59:10,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945539388] [2021-12-22 13:59:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:10,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:59:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:59:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 13:59:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 13:59:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:59:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:59:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 13:59:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 13:59:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 13:59:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 13:59:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 13:59:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 13:59:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 13:59:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 13:59:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 13:59:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-22 13:59:10,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:59:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945539388] [2021-12-22 13:59:10,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945539388] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 13:59:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686536708] [2021-12-22 13:59:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:59:10,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:59:10,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:59:10,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 13:59:10,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 13:59:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:59:10,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-22 13:59:10,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:59:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-22 13:59:11,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 13:59:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-22 13:59:11,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686536708] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 13:59:11,310 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 13:59:11,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2021-12-22 13:59:11,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784208038] [2021-12-22 13:59:11,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 13:59:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-22 13:59:11,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:59:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-22 13:59:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-12-22 13:59:11,312 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-22 13:59:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:59:11,779 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2021-12-22 13:59:11,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 13:59:11,779 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2021-12-22 13:59:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:59:11,780 INFO L225 Difference]: With dead ends: 155 [2021-12-22 13:59:11,780 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 13:59:11,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2021-12-22 13:59:11,781 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 13:59:11,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 364 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 13:59:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 13:59:11,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 13:59:11,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:59:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 13:59:11,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2021-12-22 13:59:11,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:59:11,782 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 13:59:11,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-22 13:59:11,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 13:59:11,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 13:59:11,784 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 13:59:11,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 13:59:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:59:12,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 13:59:12,121 INFO L854 garLoopResultBuilder]: At program point L6814(line 6814) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2021-12-22 13:59:12,122 INFO L858 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2021-12-22 13:59:12,122 INFO L854 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2021-12-22 13:59:12,122 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2021-12-22 13:59:12,122 INFO L858 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2021-12-22 13:59:12,122 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 13:59:12,122 INFO L854 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-22 13:59:12,122 INFO L858 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2021-12-22 13:59:12,123 INFO L854 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-22 13:59:12,123 INFO L858 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2021-12-22 13:59:12,123 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-12-22 13:59:12,123 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (or .cse0 (<= 0 (+ (* 18446744073709551616 (div (+ (* (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 95) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|))) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|) (or .cse0 (let ((.cse1 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (<= .cse1 (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ .cse1 95 (* (- 1) |ensure_string_is_allocated_bounded_length_~len~1#1|)) 18446744073709551616)))))))) [2021-12-22 13:59:12,123 INFO L858 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2021-12-22 13:59:12,123 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2021-12-22 13:59:12,123 INFO L854 garLoopResultBuilder]: At program point L6823-2(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-22 13:59:12,124 INFO L858 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2021-12-22 13:59:12,124 INFO L854 garLoopResultBuilder]: At program point L6896(lines 6896 6898) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 13:59:12,124 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 13:59:12,124 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2021-12-22 13:59:12,124 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2021-12-22 13:59:12,124 INFO L861 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2021-12-22 13:59:12,124 INFO L858 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2021-12-22 13:59:12,124 INFO L858 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2021-12-22 13:59:12,124 INFO L861 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2021-12-22 13:59:12,125 INFO L861 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2021-12-22 13:59:12,125 INFO L858 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2021-12-22 13:59:12,125 INFO L858 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2021-12-22 13:59:12,125 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-22 13:59:12,125 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-22 13:59:12,125 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-22 13:59:12,125 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-22 13:59:12,125 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L861 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2021-12-22 13:59:12,126 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2021-12-22 13:59:12,126 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-22 13:59:12,127 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-22 13:59:12,128 INFO L854 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2021-12-22 13:59:12,128 INFO L861 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2021-12-22 13:59:12,128 INFO L854 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 13:59:12,128 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L854 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2021-12-22 13:59:12,129 INFO L854 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2021-12-22 13:59:12,129 INFO L858 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L858 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L858 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L854 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2021-12-22 13:59:12,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 13:59:12,129 INFO L854 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2021-12-22 13:59:12,130 INFO L854 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2021-12-22 13:59:12,130 INFO L854 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2021-12-22 13:59:12,130 INFO L858 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2021-12-22 13:59:12,131 INFO L858 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2021-12-22 13:59:12,131 INFO L858 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2021-12-22 13:59:12,131 INFO L854 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2021-12-22 13:59:12,131 INFO L861 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2021-12-22 13:59:12,131 INFO L854 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2021-12-22 13:59:12,131 INFO L858 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2021-12-22 13:59:12,131 INFO L854 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2021-12-22 13:59:12,131 INFO L858 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2021-12-22 13:59:12,131 INFO L858 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2021-12-22 13:59:12,132 INFO L854 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2021-12-22 13:59:12,132 INFO L854 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2021-12-22 13:59:12,132 INFO L854 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2021-12-22 13:59:12,132 INFO L854 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2021-12-22 13:59:12,132 INFO L858 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2021-12-22 13:59:12,132 INFO L858 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2021-12-22 13:59:12,132 INFO L854 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2021-12-22 13:59:12,132 INFO L858 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2021-12-22 13:59:12,132 INFO L858 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2021-12-22 13:59:12,133 INFO L858 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2021-12-22 13:59:12,133 INFO L854 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2021-12-22 13:59:12,133 INFO L858 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2021-12-22 13:59:12,133 INFO L854 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2021-12-22 13:59:12,133 INFO L858 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2021-12-22 13:59:12,133 INFO L854 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2021-12-22 13:59:12,133 INFO L858 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2021-12-22 13:59:12,133 INFO L854 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2021-12-22 13:59:12,133 INFO L858 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L854 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-22 13:59:12,134 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-22 13:59:12,137 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-22 13:59:12,137 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 13:59:12,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:59:12 BoogieIcfgContainer [2021-12-22 13:59:12,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 13:59:12,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 13:59:12,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 13:59:12,146 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 13:59:12,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:59:05" (3/4) ... [2021-12-22 13:59:12,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 13:59:12,152 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-22 13:59:12,152 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-22 13:59:12,152 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-22 13:59:12,153 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-22 13:59:12,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-12-22 13:59:12,159 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-22 13:59:12,159 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 13:59:12,160 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 13:59:12,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) [2021-12-22 13:59:12,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 13:59:12,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 13:59:12,308 INFO L158 Benchmark]: Toolchain (without parser) took 9776.96ms. Allocated memory was 96.5MB in the beginning and 354.4MB in the end (delta: 257.9MB). Free memory was 55.9MB in the beginning and 227.7MB in the end (delta: -171.8MB). Peak memory consumption was 237.4MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,308 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 13:59:12,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2120.34ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 55.6MB in the beginning and 88.6MB in the end (delta: -33.0MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 230.57ms. Allocated memory is still 207.6MB. Free memory was 88.6MB in the beginning and 138.8MB in the end (delta: -50.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,309 INFO L158 Benchmark]: Boogie Preprocessor took 69.11ms. Allocated memory is still 207.6MB. Free memory was 138.8MB in the beginning and 133.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,309 INFO L158 Benchmark]: RCFGBuilder took 479.29ms. Allocated memory is still 207.6MB. Free memory was 133.5MB in the beginning and 97.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,310 INFO L158 Benchmark]: TraceAbstraction took 6711.06ms. Allocated memory was 207.6MB in the beginning and 354.4MB in the end (delta: 146.8MB). Free memory was 97.9MB in the beginning and 94.7MB in the end (delta: 3.1MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,310 INFO L158 Benchmark]: Witness Printer took 161.73ms. Allocated memory is still 354.4MB. Free memory was 93.7MB in the beginning and 227.7MB in the end (delta: -134.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-22 13:59:12,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2120.34ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 55.6MB in the beginning and 88.6MB in the end (delta: -33.0MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 230.57ms. Allocated memory is still 207.6MB. Free memory was 88.6MB in the beginning and 138.8MB in the end (delta: -50.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.11ms. Allocated memory is still 207.6MB. Free memory was 138.8MB in the beginning and 133.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 479.29ms. Allocated memory is still 207.6MB. Free memory was 133.5MB in the beginning and 97.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6711.06ms. Allocated memory was 207.6MB in the beginning and 354.4MB in the end (delta: 146.8MB). Free memory was 97.9MB in the beginning and 94.7MB in the end (delta: 3.1MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. * Witness Printer took 161.73ms. Allocated memory is still 354.4MB. Free memory was 93.7MB in the beginning and 227.7MB in the end (delta: -134.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 524 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 4158 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3580 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 999 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 578 mSDtfsCounter, 999 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 695 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 155 PreInvPairs, 163 NumberOfFragments, 256 HoareAnnotationTreeSize, 155 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2896 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 819/909 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) - InvariantResult [Line: 10803]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11056]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10810]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11328]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-22 13:59:12,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE