./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_table_init_unbounded_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 fd4ba35c5d37d2cde98be67677183fa679789fb5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 15:21:15,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 15:21:15,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 15:21:15,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 15:21:15,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 15:21:15,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 15:21:15,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 15:21:15,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 15:21:15,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 15:21:15,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 15:21:15,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 15:21:15,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 15:21:15,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 15:21:15,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 15:21:15,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 15:21:15,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 15:21:15,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 15:21:15,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 15:21:15,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 15:21:15,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 15:21:15,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 15:21:15,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 15:21:15,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 15:21:15,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 15:21:15,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 15:21:15,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 15:21:15,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 15:21:15,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 15:21:15,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 15:21:15,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 15:21:15,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 15:21:15,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 15:21:15,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 15:21:15,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 15:21:15,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 15:21:15,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 15:21:15,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 15:21:15,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 15:21:15,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 15:21:15,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 15:21:15,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 15:21:15,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-08-26 15:21:15,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 15:21:15,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 15:21:15,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 15:21:15,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 15:21:15,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 15:21:15,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 15:21:15,473 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 15:21:15,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 15:21:15,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 15:21:15,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 15:21:15,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 15:21:15,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 15:21:15,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 15:21:15,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 15:21:15,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:21:15,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 15:21:15,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 15:21:15,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 15:21:15,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 15:21:15,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 15:21:15,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 15:21:15,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 15:21:15,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ba35c5d37d2cde98be67677183fa679789fb5 [2021-08-26 15:21:15,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 15:21:15,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 15:21:15,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 15:21:15,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 15:21:15,817 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 15:21:15,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-08-26 15:21:15,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5013ffb87/054cb905abd84b7ca97f681f4b528654/FLAG44bcdfd87 [2021-08-26 15:21:16,484 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 15:21:16,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-08-26 15:21:16,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5013ffb87/054cb905abd84b7ca97f681f4b528654/FLAG44bcdfd87 [2021-08-26 15:21:16,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5013ffb87/054cb905abd84b7ca97f681f4b528654 [2021-08-26 15:21:16,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 15:21:16,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 15:21:16,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 15:21:16,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 15:21:16,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 15:21:16,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:21:16" (1/1) ... [2021-08-26 15:21:16,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cecc5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:16, skipping insertion in model container [2021-08-26 15:21:16,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:21:16" (1/1) ... [2021-08-26 15:21:16,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 15:21:16,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 15:21:17,158 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-08-26 15:21:17,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-08-26 15:21:17,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-08-26 15:21:17,187 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-08-26 15:21:17,695 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,696 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,696 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,697 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,697 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,710 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,712 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,714 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,716 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,718 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,719 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,720 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,720 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:17,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-08-26 15:21:17,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-08-26 15:21:17,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-08-26 15:21:17,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-08-26 15:21:17,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-08-26 15:21:17,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-08-26 15:21:17,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-08-26 15:21:17,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-08-26 15:21:17,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-08-26 15:21:17,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-08-26 15:21:18,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-08-26 15:21:18,276 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,278 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,301 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,302 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,307 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,307 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,320 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,321 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,321 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,322 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,322 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,323 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,323 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:21:18,394 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 15:21:18,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-08-26 15:21:18,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-08-26 15:21:18,414 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-08-26 15:21:18,419 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-08-26 15:21:18,452 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,452 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,452 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,452 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,453 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,458 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,458 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,459 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,459 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,460 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,460 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,460 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,461 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-08-26 15:21:18,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-08-26 15:21:18,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-08-26 15:21:18,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-08-26 15:21:18,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-08-26 15:21:18,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-08-26 15:21:18,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-08-26 15:21:18,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-08-26 15:21:18,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-08-26 15:21:18,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-08-26 15:21:18,515 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-08-26 15:21:18,611 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,611 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,616 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,617 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,619 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,619 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,628 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,630 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,630 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,630 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,631 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,631 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,632 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:21:18,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:21:18,903 INFO L208 MainTranslator]: Completed translation [2021-08-26 15:21:18,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18 WrapperNode [2021-08-26 15:21:18,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 15:21:18,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 15:21:18,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 15:21:18,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 15:21:18,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 15:21:19,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 15:21:19,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 15:21:19,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 15:21:19,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 15:21:19,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 15:21:19,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 15:21:19,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 15:21:19,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (1/1) ... [2021-08-26 15:21:19,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:21:19,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:19,234 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) [2021-08-26 15:21:19,257 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 [2021-08-26 15:21:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 15:21:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 15:21:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 15:21:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-26 15:21:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 15:21:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 15:21:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-26 15:21:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 15:21:27,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !true; [2021-08-26 15:21:27,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 15:21:27,222 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-08-26 15:21:27,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:21:27 BoogieIcfgContainer [2021-08-26 15:21:27,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 15:21:27,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 15:21:27,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 15:21:27,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 15:21:27,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:21:16" (1/3) ... [2021-08-26 15:21:27,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c93a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:21:27, skipping insertion in model container [2021-08-26 15:21:27,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:21:18" (2/3) ... [2021-08-26 15:21:27,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c93a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:21:27, skipping insertion in model container [2021-08-26 15:21:27,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:21:27" (3/3) ... [2021-08-26 15:21:27,230 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness.i [2021-08-26 15:21:27,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 15:21:27,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 15:21:27,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 15:21:27,281 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 15:21:27,281 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-26 15:21:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 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) [2021-08-26 15:21:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 15:21:27,304 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:27,305 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:27,306 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:27,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1956444402, now seen corresponding path program 1 times [2021-08-26 15:21:27,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:27,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768662583] [2021-08-26 15:21:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:27,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:27,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:27,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768662583] [2021-08-26 15:21:27,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768662583] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:27,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:27,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 15:21:27,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683700225] [2021-08-26 15:21:27,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 15:21:27,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:27,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 15:21:27,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 15:21:27,793 INFO L87 Difference]: Start difference. First operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:27,823 INFO L93 Difference]: Finished difference Result 221 states and 294 transitions. [2021-08-26 15:21:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 15:21:27,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-26 15:21:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:27,831 INFO L225 Difference]: With dead ends: 221 [2021-08-26 15:21:27,831 INFO L226 Difference]: Without dead ends: 106 [2021-08-26 15:21:27,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 15:21:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-08-26 15:21:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-08-26 15:21:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 105 states have internal predecessors, (129), 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) [2021-08-26 15:21:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2021-08-26 15:21:27,862 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 31 [2021-08-26 15:21:27,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:27,863 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2021-08-26 15:21:27,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2021-08-26 15:21:27,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 15:21:27,864 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:27,864 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:27,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 15:21:27,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:27,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:27,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1279980632, now seen corresponding path program 1 times [2021-08-26 15:21:27,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:27,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713903710] [2021-08-26 15:21:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:27,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:28,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:28,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713903710] [2021-08-26 15:21:28,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713903710] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:28,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:28,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:28,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372521885] [2021-08-26 15:21:28,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:28,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:28,171 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:28,286 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2021-08-26 15:21:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:28,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-26 15:21:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:28,288 INFO L225 Difference]: With dead ends: 272 [2021-08-26 15:21:28,288 INFO L226 Difference]: Without dead ends: 191 [2021-08-26 15:21:28,289 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 136.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-08-26 15:21:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 108. [2021-08-26 15:21:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 107 states have internal predecessors, (131), 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) [2021-08-26 15:21:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2021-08-26 15:21:28,295 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 31 [2021-08-26 15:21:28,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:28,296 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2021-08-26 15:21:28,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:28,296 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2021-08-26 15:21:28,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 15:21:28,297 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:28,297 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:28,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 15:21:28,297 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash 422969666, now seen corresponding path program 1 times [2021-08-26 15:21:28,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:28,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848563432] [2021-08-26 15:21:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:28,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:28,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:28,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848563432] [2021-08-26 15:21:28,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848563432] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:28,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:28,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:28,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907134307] [2021-08-26 15:21:28,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:28,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:28,571 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-08-26 15:21:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:28,667 INFO L93 Difference]: Finished difference Result 202 states and 245 transitions. [2021-08-26 15:21:28,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:28,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-08-26 15:21:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:28,671 INFO L225 Difference]: With dead ends: 202 [2021-08-26 15:21:28,671 INFO L226 Difference]: Without dead ends: 189 [2021-08-26 15:21:28,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-08-26 15:21:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 110. [2021-08-26 15:21:28,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2314814814814814) internal successors, (133), 109 states have internal predecessors, (133), 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) [2021-08-26 15:21:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2021-08-26 15:21:28,677 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 33 [2021-08-26 15:21:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:28,677 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2021-08-26 15:21:28,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-08-26 15:21:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2021-08-26 15:21:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 15:21:28,678 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:28,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:28,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 15:21:28,679 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:28,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1472200601, now seen corresponding path program 1 times [2021-08-26 15:21:28,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:28,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634315214] [2021-08-26 15:21:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:28,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:28,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:28,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634315214] [2021-08-26 15:21:28,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634315214] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:28,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:28,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:28,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20432884] [2021-08-26 15:21:28,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:28,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:28,897 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-08-26 15:21:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:28,964 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2021-08-26 15:21:28,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 15:21:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:28,965 INFO L225 Difference]: With dead ends: 123 [2021-08-26 15:21:28,965 INFO L226 Difference]: Without dead ends: 110 [2021-08-26 15:21:28,966 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-08-26 15:21:28,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-08-26 15:21:28,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 107 states have internal predecessors, (129), 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) [2021-08-26 15:21:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-08-26 15:21:28,970 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 34 [2021-08-26 15:21:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:28,971 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-08-26 15:21:28,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-08-26 15:21:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-08-26 15:21:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-26 15:21:28,972 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:28,972 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:28,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 15:21:28,972 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:28,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1643067430, now seen corresponding path program 1 times [2021-08-26 15:21:28,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:28,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378545945] [2021-08-26 15:21:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:28,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:29,036 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:29,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910678465] [2021-08-26 15:21:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:29,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:29,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:29,040 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) [2021-08-26 15:21:29,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 15:21:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:29,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 2453 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 15:21:29,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:30,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:30,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378545945] [2021-08-26 15:21:30,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:30,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910678465] [2021-08-26 15:21:30,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910678465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:30,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:30,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:21:30,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621195470] [2021-08-26 15:21:30,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:21:30,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:21:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:30,171 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-08-26 15:21:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:30,397 INFO L93 Difference]: Finished difference Result 240 states and 286 transitions. [2021-08-26 15:21:30,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:21:30,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-08-26 15:21:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:30,399 INFO L225 Difference]: With dead ends: 240 [2021-08-26 15:21:30,399 INFO L226 Difference]: Without dead ends: 175 [2021-08-26 15:21:30,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 103.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:21:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-08-26 15:21:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 111. [2021-08-26 15:21:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 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) [2021-08-26 15:21:30,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-08-26 15:21:30,404 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 41 [2021-08-26 15:21:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:30,405 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-08-26 15:21:30,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-08-26 15:21:30,405 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-08-26 15:21:30,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-26 15:21:30,406 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:30,406 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:30,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-26 15:21:30,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:30,630 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:30,630 INFO L82 PathProgramCache]: Analyzing trace with hash 851201738, now seen corresponding path program 1 times [2021-08-26 15:21:30,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:30,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729864672] [2021-08-26 15:21:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:30,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:31,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:31,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729864672] [2021-08-26 15:21:31,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729864672] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:31,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:31,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:31,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799994318] [2021-08-26 15:21:31,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:31,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:31,160 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-08-26 15:21:31,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:31,262 INFO L93 Difference]: Finished difference Result 292 states and 350 transitions. [2021-08-26 15:21:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:31,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-08-26 15:21:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:31,266 INFO L225 Difference]: With dead ends: 292 [2021-08-26 15:21:31,266 INFO L226 Difference]: Without dead ends: 204 [2021-08-26 15:21:31,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:31,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-08-26 15:21:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 114. [2021-08-26 15:21:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 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) [2021-08-26 15:21:31,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-08-26 15:21:31,279 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 43 [2021-08-26 15:21:31,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:31,279 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-08-26 15:21:31,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-08-26 15:21:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-08-26 15:21:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-26 15:21:31,282 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:31,282 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:31,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 15:21:31,282 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:31,283 INFO L82 PathProgramCache]: Analyzing trace with hash 341728648, now seen corresponding path program 1 times [2021-08-26 15:21:31,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:31,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54605349] [2021-08-26 15:21:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:31,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:31,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:31,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54605349] [2021-08-26 15:21:31,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54605349] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:31,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:31,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 15:21:31,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269916058] [2021-08-26 15:21:31,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 15:21:31,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 15:21:31,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:21:31,791 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-08-26 15:21:39,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:39,570 INFO L93 Difference]: Finished difference Result 139 states and 164 transitions. [2021-08-26 15:21:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 15:21:39,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-08-26 15:21:39,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:39,572 INFO L225 Difference]: With dead ends: 139 [2021-08-26 15:21:39,572 INFO L226 Difference]: Without dead ends: 120 [2021-08-26 15:21:39,572 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 460.0ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-08-26 15:21:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-08-26 15:21:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2021-08-26 15:21:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 115 states have internal predecessors, (137), 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) [2021-08-26 15:21:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2021-08-26 15:21:39,577 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 43 [2021-08-26 15:21:39,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:39,578 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2021-08-26 15:21:39,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-08-26 15:21:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2021-08-26 15:21:39,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-26 15:21:39,579 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:39,579 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:39,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 15:21:39,579 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:39,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2116736010, now seen corresponding path program 1 times [2021-08-26 15:21:39,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:39,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960848282] [2021-08-26 15:21:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:39,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:39,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:39,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960848282] [2021-08-26 15:21:39,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960848282] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:39,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:39,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:39,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653037700] [2021-08-26 15:21:39,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:39,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:39,815 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-08-26 15:21:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:39,885 INFO L93 Difference]: Finished difference Result 138 states and 162 transitions. [2021-08-26 15:21:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:39,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-08-26 15:21:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:39,886 INFO L225 Difference]: With dead ends: 138 [2021-08-26 15:21:39,886 INFO L226 Difference]: Without dead ends: 114 [2021-08-26 15:21:39,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-08-26 15:21:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-08-26 15:21:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1875) internal successors, (133), 113 states have internal predecessors, (133), 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) [2021-08-26 15:21:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2021-08-26 15:21:39,889 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 43 [2021-08-26 15:21:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:39,889 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2021-08-26 15:21:39,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-08-26 15:21:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2021-08-26 15:21:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-26 15:21:39,890 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:39,890 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:39,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 15:21:39,890 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:39,891 INFO L82 PathProgramCache]: Analyzing trace with hash 519133667, now seen corresponding path program 1 times [2021-08-26 15:21:39,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:39,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300439272] [2021-08-26 15:21:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:39,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:40,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:40,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300439272] [2021-08-26 15:21:40,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300439272] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:40,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:40,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:21:40,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934270609] [2021-08-26 15:21:40,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:21:40,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:40,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:21:40,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:40,216 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:45,478 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2021-08-26 15:21:45,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 15:21:45,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-08-26 15:21:45,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:45,479 INFO L225 Difference]: With dead ends: 135 [2021-08-26 15:21:45,479 INFO L226 Difference]: Without dead ends: 115 [2021-08-26 15:21:45,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 297.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 15:21:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-08-26 15:21:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-08-26 15:21:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 113 states have internal predecessors, (131), 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) [2021-08-26 15:21:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2021-08-26 15:21:45,482 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 45 [2021-08-26 15:21:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:45,482 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2021-08-26 15:21:45,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:45,482 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2021-08-26 15:21:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-26 15:21:45,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:45,483 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:45,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 15:21:45,483 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:45,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:45,483 INFO L82 PathProgramCache]: Analyzing trace with hash 627267248, now seen corresponding path program 1 times [2021-08-26 15:21:45,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:45,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859421184] [2021-08-26 15:21:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:45,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:45,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:45,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859421184] [2021-08-26 15:21:45,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859421184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:45,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:45,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 15:21:45,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828568689] [2021-08-26 15:21:45,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 15:21:45,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:45,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 15:21:45,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 15:21:45,907 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:51,209 INFO L93 Difference]: Finished difference Result 142 states and 160 transitions. [2021-08-26 15:21:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:21:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-08-26 15:21:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:51,210 INFO L225 Difference]: With dead ends: 142 [2021-08-26 15:21:51,210 INFO L226 Difference]: Without dead ends: 114 [2021-08-26 15:21:51,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 248.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 15:21:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-08-26 15:21:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-08-26 15:21:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 113 states have internal predecessors, (129), 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) [2021-08-26 15:21:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2021-08-26 15:21:51,213 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 46 [2021-08-26 15:21:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:51,214 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2021-08-26 15:21:51,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:21:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2021-08-26 15:21:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-26 15:21:51,214 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:51,214 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:51,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 15:21:51,215 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:51,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:51,215 INFO L82 PathProgramCache]: Analyzing trace with hash 600005105, now seen corresponding path program 1 times [2021-08-26 15:21:51,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:51,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827477757] [2021-08-26 15:21:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:51,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:51,281 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:51,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419546430] [2021-08-26 15:21:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:51,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:51,283 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) [2021-08-26 15:21:51,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-26 15:21:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:52,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 2666 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 15:21:52,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:52,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:52,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827477757] [2021-08-26 15:21:52,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:52,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419546430] [2021-08-26 15:21:52,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419546430] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:52,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:52,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:52,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040238393] [2021-08-26 15:21:52,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:52,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:52,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:52,314 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-08-26 15:21:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:52,368 INFO L93 Difference]: Finished difference Result 179 states and 200 transitions. [2021-08-26 15:21:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:52,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-26 15:21:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:52,369 INFO L225 Difference]: With dead ends: 179 [2021-08-26 15:21:52,369 INFO L226 Difference]: Without dead ends: 114 [2021-08-26 15:21:52,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-08-26 15:21:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2021-08-26 15:21:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.1376146788990826) internal successors, (124), 110 states have internal predecessors, (124), 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) [2021-08-26 15:21:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2021-08-26 15:21:52,373 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 59 [2021-08-26 15:21:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:52,373 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2021-08-26 15:21:52,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-08-26 15:21:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2021-08-26 15:21:52,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-08-26 15:21:52,374 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:52,374 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:52,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-26 15:21:52,589 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,SelfDestructingSolverStorable10 [2021-08-26 15:21:52,589 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash -551778192, now seen corresponding path program 1 times [2021-08-26 15:21:52,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:52,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505181001] [2021-08-26 15:21:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:52,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:52,646 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:52,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630090388] [2021-08-26 15:21:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:52,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:52,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:52,647 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) [2021-08-26 15:21:52,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-26 15:21:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:53,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 2730 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 15:21:53,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:53,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:53,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505181001] [2021-08-26 15:21:53,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:53,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630090388] [2021-08-26 15:21:53,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630090388] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:53,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:53,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:21:53,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209147268] [2021-08-26 15:21:53,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:21:53,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:21:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:53,674 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-26 15:21:53,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:53,862 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2021-08-26 15:21:53,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:21:53,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-08-26 15:21:53,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:53,863 INFO L225 Difference]: With dead ends: 208 [2021-08-26 15:21:53,863 INFO L226 Difference]: Without dead ends: 178 [2021-08-26 15:21:53,864 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:21:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-08-26 15:21:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 114. [2021-08-26 15:21:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1339285714285714) internal successors, (127), 113 states have internal predecessors, (127), 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) [2021-08-26 15:21:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2021-08-26 15:21:53,868 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 62 [2021-08-26 15:21:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:53,868 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2021-08-26 15:21:53,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-26 15:21:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2021-08-26 15:21:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-26 15:21:53,869 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:53,869 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:53,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-26 15:21:54,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:54,082 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:54,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash -402269396, now seen corresponding path program 1 times [2021-08-26 15:21:54,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:54,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974585019] [2021-08-26 15:21:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:54,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:54,147 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:54,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199238878] [2021-08-26 15:21:54,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:54,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:54,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:54,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:21:54,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 15:21:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:54,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2739 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-26 15:21:54,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:55,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:55,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974585019] [2021-08-26 15:21:55,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:55,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199238878] [2021-08-26 15:21:55,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199238878] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:55,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:55,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:21:55,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400646910] [2021-08-26 15:21:55,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:21:55,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:21:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:21:55,264 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-08-26 15:21:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:55,434 INFO L93 Difference]: Finished difference Result 144 states and 158 transitions. [2021-08-26 15:21:55,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:21:55,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-08-26 15:21:55,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:55,446 INFO L225 Difference]: With dead ends: 144 [2021-08-26 15:21:55,446 INFO L226 Difference]: Without dead ends: 114 [2021-08-26 15:21:55,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-08-26 15:21:55,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2021-08-26 15:21:55,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.128440366972477) internal successors, (123), 110 states have internal predecessors, (123), 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) [2021-08-26 15:21:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2021-08-26 15:21:55,449 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 64 [2021-08-26 15:21:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:55,450 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2021-08-26 15:21:55,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-08-26 15:21:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2021-08-26 15:21:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-26 15:21:55,450 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:55,450 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:55,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-26 15:21:55,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:55,651 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:55,651 INFO L82 PathProgramCache]: Analyzing trace with hash 478157639, now seen corresponding path program 1 times [2021-08-26 15:21:55,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:55,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540545973] [2021-08-26 15:21:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:55,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:55,708 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:55,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818291170] [2021-08-26 15:21:55,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:55,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:55,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:55,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:21:55,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 15:21:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:56,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-26 15:21:56,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:56,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:56,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540545973] [2021-08-26 15:21:56,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:56,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818291170] [2021-08-26 15:21:56,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818291170] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:56,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:56,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:21:56,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249515704] [2021-08-26 15:21:56,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:21:56,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:21:56,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:56,860 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-08-26 15:21:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:56,963 INFO L93 Difference]: Finished difference Result 209 states and 225 transitions. [2021-08-26 15:21:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:21:56,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-08-26 15:21:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:56,964 INFO L225 Difference]: With dead ends: 209 [2021-08-26 15:21:56,964 INFO L226 Difference]: Without dead ends: 178 [2021-08-26 15:21:56,965 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 15:21:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-08-26 15:21:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 114. [2021-08-26 15:21:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.125) internal successors, (126), 113 states have internal predecessors, (126), 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) [2021-08-26 15:21:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2021-08-26 15:21:56,969 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 68 [2021-08-26 15:21:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:56,969 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2021-08-26 15:21:56,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-08-26 15:21:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2021-08-26 15:21:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-26 15:21:56,970 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:56,970 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:56,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-26 15:21:57,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-26 15:21:57,185 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:57,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:57,185 INFO L82 PathProgramCache]: Analyzing trace with hash 776073283, now seen corresponding path program 1 times [2021-08-26 15:21:57,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:57,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973765487] [2021-08-26 15:21:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:57,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:57,251 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:57,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406828256] [2021-08-26 15:21:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:57,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:57,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:21:57,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-26 15:21:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:58,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-26 15:21:58,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:21:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:21:58,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:21:58,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973765487] [2021-08-26 15:21:58,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:21:58,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406828256] [2021-08-26 15:21:58,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406828256] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:21:58,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:21:58,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:21:58,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979024060] [2021-08-26 15:21:58,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:21:58,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:21:58,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:21:58,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:21:58,425 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2021-08-26 15:21:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:21:58,707 INFO L93 Difference]: Finished difference Result 145 states and 158 transitions. [2021-08-26 15:21:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:21:58,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-08-26 15:21:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:21:58,721 INFO L225 Difference]: With dead ends: 145 [2021-08-26 15:21:58,721 INFO L226 Difference]: Without dead ends: 109 [2021-08-26 15:21:58,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 148.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:21:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-08-26 15:21:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-08-26 15:21:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 108 states have internal predecessors, (119), 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) [2021-08-26 15:21:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2021-08-26 15:21:58,725 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 70 [2021-08-26 15:21:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:21:58,725 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2021-08-26 15:21:58,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2021-08-26 15:21:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2021-08-26 15:21:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-08-26 15:21:58,725 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:21:58,726 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:21:58,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-26 15:21:58,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-26 15:21:58,937 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:21:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:21:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash -776040076, now seen corresponding path program 1 times [2021-08-26 15:21:58,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:21:58,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150197818] [2021-08-26 15:21:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:58,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:21:59,005 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:21:59,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921549609] [2021-08-26 15:21:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:21:59,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:21:59,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:21:59,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:21:59,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-26 15:21:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:21:59,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-26 15:21:59,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:22:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:22:00,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:22:00,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150197818] [2021-08-26 15:22:00,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:22:00,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921549609] [2021-08-26 15:22:00,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921549609] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:22:00,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:22:00,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:22:00,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460564900] [2021-08-26 15:22:00,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:22:00,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:22:00,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:22:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:22:00,190 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-08-26 15:22:00,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:22:00,255 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2021-08-26 15:22:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:22:00,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-08-26 15:22:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:22:00,256 INFO L225 Difference]: With dead ends: 190 [2021-08-26 15:22:00,256 INFO L226 Difference]: Without dead ends: 107 [2021-08-26 15:22:00,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:22:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-08-26 15:22:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2021-08-26 15:22:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.0980392156862746) internal successors, (112), 103 states have internal predecessors, (112), 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) [2021-08-26 15:22:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2021-08-26 15:22:00,261 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 78 [2021-08-26 15:22:00,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:22:00,261 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2021-08-26 15:22:00,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-08-26 15:22:00,261 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2021-08-26 15:22:00,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-08-26 15:22:00,262 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:22:00,262 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:22:00,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-26 15:22:00,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:22:00,466 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:22:00,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:22:00,467 INFO L82 PathProgramCache]: Analyzing trace with hash -589599749, now seen corresponding path program 1 times [2021-08-26 15:22:00,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:22:00,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841002452] [2021-08-26 15:22:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:22:00,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:22:00,530 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:22:00,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661655579] [2021-08-26 15:22:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:22:00,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:22:00,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:22:00,532 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:22:00,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-26 15:22:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:22:01,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 15:22:01,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:22:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:22:01,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:22:01,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841002452] [2021-08-26 15:22:01,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:22:01,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661655579] [2021-08-26 15:22:01,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661655579] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:22:01,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:22:01,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:22:01,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819332916] [2021-08-26 15:22:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:22:01,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:22:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:22:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:22:01,718 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2021-08-26 15:22:01,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:22:01,794 INFO L93 Difference]: Finished difference Result 183 states and 196 transitions. [2021-08-26 15:22:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:22:01,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-08-26 15:22:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:22:01,797 INFO L225 Difference]: With dead ends: 183 [2021-08-26 15:22:01,797 INFO L226 Difference]: Without dead ends: 104 [2021-08-26 15:22:01,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:22:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-08-26 15:22:01,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-08-26 15:22:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.088235294117647) internal successors, (111), 103 states have internal predecessors, (111), 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) [2021-08-26 15:22:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2021-08-26 15:22:01,801 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 79 [2021-08-26 15:22:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:22:01,801 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2021-08-26 15:22:01,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2021-08-26 15:22:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2021-08-26 15:22:01,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-26 15:22:01,802 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:22:01,802 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:22:01,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-26 15:22:02,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-26 15:22:02,003 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 15:22:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:22:02,003 INFO L82 PathProgramCache]: Analyzing trace with hash -658597663, now seen corresponding path program 1 times [2021-08-26 15:22:02,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:22:02,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217509882] [2021-08-26 15:22:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:22:02,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:22:02,065 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 15:22:02,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156592127] [2021-08-26 15:22:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:22:02,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 15:22:02,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:22:02,067 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 15:22:02,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-26 15:22:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:22:02,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 2891 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 15:22:02,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 15:22:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:22:03,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:22:03,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217509882] [2021-08-26 15:22:03,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 15:22:03,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156592127] [2021-08-26 15:22:03,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156592127] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:22:03,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:22:03,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:22:03,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343183378] [2021-08-26 15:22:03,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:22:03,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:22:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:22:03,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:22:03,350 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-08-26 15:22:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:22:03,458 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2021-08-26 15:22:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:22:03,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-08-26 15:22:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:22:03,458 INFO L225 Difference]: With dead ends: 104 [2021-08-26 15:22:03,459 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 15:22:03,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:22:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 15:22:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 15:22:03,459 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) [2021-08-26 15:22:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 15:22:03,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2021-08-26 15:22:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:22:03,459 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 15:22:03,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-08-26 15:22:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 15:22:03,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 15:22:03,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:22:03,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:22:03,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-08-26 15:22:03,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-08-26 15:22:03,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 15:22:03,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:03,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:22:04,010 INFO L853 garLoopResultBuilder]: At program point L10110-1(lines 10065 10112) the Hoare annotation is: false [2021-08-26 15:22:04,010 INFO L857 garLoopResultBuilder]: For program point L9218-2(lines 9218 9220) no Hoare annotation was computed. [2021-08-26 15:22:04,010 INFO L853 garLoopResultBuilder]: At program point L250(lines 248 251) the Hoare annotation is: false [2021-08-26 15:22:04,011 INFO L853 garLoopResultBuilder]: At program point L10110(lines 10065 10112) the Hoare annotation is: false [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385-3(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385-2(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385-1(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385-5(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L7385-4(lines 7385 7387) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L853 garLoopResultBuilder]: At program point L6940(lines 6934 6941) the Hoare annotation is: false [2021-08-26 15:22:04,011 INFO L853 garLoopResultBuilder]: At program point L2630(lines 2626 2631) the Hoare annotation is: false [2021-08-26 15:22:04,011 INFO L853 garLoopResultBuilder]: At program point L10178(lines 10167 10179) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_hash_table_state_required_bytes_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0))) [2021-08-26 15:22:04,011 INFO L853 garLoopResultBuilder]: At program point L2630-1(lines 2626 2631) the Hoare annotation is: false [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L2498(lines 2498 2499) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L2498-2(lines 2498 2499) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L857 garLoopResultBuilder]: For program point L9204(lines 9204 9208) no Hoare annotation was computed. [2021-08-26 15:22:04,011 INFO L860 garLoopResultBuilder]: At program point L10195(line 10195) the Hoare annotation is: true [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L10180(lines 10180 10194) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L9239(lines 9215 9240) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (<= (+ |ULTIMATE.start_s_update_template_size_#res| 1) 0)) [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L2501-1(lines 2497 2502) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L7010(lines 7010 7014) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L2501-2(lines 2497 2502) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L255(lines 253 256) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L255-1(lines 253 256) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L255-2(lines 253 256) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L853 garLoopResultBuilder]: At program point L2617(lines 2613 2621) the Hoare annotation is: false [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L9273(lines 9273 9275) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L9224(lines 9224 9226) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,012 INFO L857 garLoopResultBuilder]: For program point L10067(lines 10067 10071) no Hoare annotation was computed. [2021-08-26 15:22:04,013 INFO L857 garLoopResultBuilder]: For program point L10067-1(lines 10067 10071) no Hoare annotation was computed. [2021-08-26 15:22:04,013 INFO L853 garLoopResultBuilder]: At program point L9242(lines 9242 9283) the Hoare annotation is: (<= (+ |ULTIMATE.start_aws_hash_table_init_#res| 1) 0) [2021-08-26 15:22:04,014 INFO L853 garLoopResultBuilder]: At program point L9211(lines 9193 9212) the Hoare annotation is: (and (= |ULTIMATE.start_s_alloc_state_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_s_alloc_state_#res.offset| 0)) [2021-08-26 15:22:04,014 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 15:22:04,014 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,014 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L2638(lines 2638 2641) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L9195(lines 9195 9199) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L210-9(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L10170(lines 10170 10172) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L9278(lines 9278 9280) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,015 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-08-26 15:22:04,015 INFO L857 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L211-18(line 211) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L2590(lines 2586 2594) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L2590-2(lines 2586 2594) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L2590-1(lines 2586 2594) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L6951-1(lines 6950 6952) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-3(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L860 garLoopResultBuilder]: At program point L6951(lines 6950 6952) the Hoare annotation is: true [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L7017-2(lines 7017 7019) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-5(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L7017(lines 7017 7019) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L10056-6(lines 10054 10057) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-2(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L2657(lines 2637 2658) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (<= (+ |ULTIMATE.start_aws_round_up_to_power_of_two_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-12(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L853 garLoopResultBuilder]: At program point L10056-13(lines 10054 10057) the Hoare annotation is: false [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-7(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-9(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L10056-10(line 10056) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L2542(lines 2542 2543) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 15:22:04,016 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L2642(lines 2642 2644) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998(lines 1988 1999) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998-1(lines 1988 1999) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L6986(lines 6984 6987) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L9232(lines 9232 9234) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998-2(lines 1988 1999) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998-3(lines 1988 1999) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L9232-2(lines 9232 9234) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998-4(lines 1988 1999) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L1998-5(lines 1988 1999) the Hoare annotation is: (and (= ULTIMATE.start_aws_mem_calloc_~mem~1.offset 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= ULTIMATE.start_aws_mem_calloc_~mem~1.base 0)) [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L9282-2(line 9282) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L9282-3(line 9282) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L10174(lines 10174 10176) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L10191-2(lines 10191 10193) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7001 7021) the Hoare annotation is: (and (= |ULTIMATE.start_aws_mem_calloc_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_aws_mem_calloc_#res.offset| 0)) [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L10191(lines 10191 10193) no Hoare annotation was computed. [2021-08-26 15:22:04,017 INFO L853 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: false [2021-08-26 15:22:04,017 INFO L857 garLoopResultBuilder]: For program point L6955(lines 6955 6957) no Hoare annotation was computed. [2021-08-26 15:22:04,018 INFO L853 garLoopResultBuilder]: At program point L6955-3(lines 6954 6958) the Hoare annotation is: (and (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_can_fail_calloc_#res.base| 0) (= |ULTIMATE.start_can_fail_calloc_#res.offset| 0)) [2021-08-26 15:22:04,018 INFO L857 garLoopResultBuilder]: For program point L9218(lines 9218 9220) no Hoare annotation was computed. [2021-08-26 15:22:04,018 INFO L857 garLoopResultBuilder]: For program point L6955-2(lines 6955 6957) no Hoare annotation was computed. [2021-08-26 15:22:04,021 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 15:22:04,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:22:04 BoogieIcfgContainer [2021-08-26 15:22:04,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 15:22:04,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 15:22:04,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 15:22:04,064 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 15:22:04,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:21:27" (3/4) ... [2021-08-26 15:22:04,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 15:22:04,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 188 nodes and edges [2021-08-26 15:22:04,087 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2021-08-26 15:22:04,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-08-26 15:22:04,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-08-26 15:22:04,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-08-26 15:22:04,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-26 15:22:04,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 15:22:04,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 15:22:04,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-08-26 15:22:04,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 [2021-08-26 15:22:04,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-08-26 15:22:04,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2021-08-26 15:22:04,122 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 && !(map == 0) [2021-08-26 15:22:04,123 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-08-26 15:22:04,123 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-08-26 15:22:04,124 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(map == 0) && \result == 0) && \result == 0 [2021-08-26 15:22:04,659 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 15:22:04,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 15:22:04,660 INFO L168 Benchmark]: Toolchain (without parser) took 47814.27 ms. Allocated memory was 65.0 MB in the beginning and 593.5 MB in the end (delta: 528.5 MB). Free memory was 34.7 MB in the beginning and 417.8 MB in the end (delta: -383.1 MB). Peak memory consumption was 397.0 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,661 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 15:22:04,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2077.52 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 34.7 MB in the beginning and 44.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 177.42 ms. Allocated memory is still 96.5 MB. Free memory was 44.9 MB in the beginning and 32.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,661 INFO L168 Benchmark]: Boogie Preprocessor took 103.24 ms. Allocated memory is still 96.5 MB. Free memory was 32.0 MB in the beginning and 37.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,662 INFO L168 Benchmark]: RCFGBuilder took 8015.56 ms. Allocated memory was 96.5 MB in the beginning and 490.7 MB in the end (delta: 394.3 MB). Free memory was 37.8 MB in the beginning and 337.9 MB in the end (delta: -300.0 MB). Peak memory consumption was 275.6 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,662 INFO L168 Benchmark]: TraceAbstraction took 36836.17 ms. Allocated memory was 490.7 MB in the beginning and 593.5 MB in the end (delta: 102.8 MB). Free memory was 337.9 MB in the beginning and 485.6 MB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 15:22:04,662 INFO L168 Benchmark]: Witness Printer took 596.55 ms. Allocated memory is still 593.5 MB. Free memory was 485.6 MB in the beginning and 417.8 MB in the end (delta: 67.8 MB). Peak memory consumption was 319.8 MB. Max. memory is 16.1 GB. [2021-08-26 15:22:04,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2077.52 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 34.7 MB in the beginning and 44.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 177.42 ms. Allocated memory is still 96.5 MB. Free memory was 44.9 MB in the beginning and 32.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.24 ms. Allocated memory is still 96.5 MB. Free memory was 32.0 MB in the beginning and 37.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8015.56 ms. Allocated memory was 96.5 MB in the beginning and 490.7 MB in the end (delta: 394.3 MB). Free memory was 37.8 MB in the beginning and 337.9 MB in the end (delta: -300.0 MB). Peak memory consumption was 275.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36836.17 ms. Allocated memory was 490.7 MB in the beginning and 593.5 MB in the end (delta: 102.8 MB). Free memory was 337.9 MB in the beginning and 485.6 MB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 596.55 ms. Allocated memory is still 593.5 MB. Free memory was 485.6 MB in the beginning and 417.8 MB in the end (delta: 67.8 MB). Peak memory consumption was 319.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 36747.8ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 22.4ms, AutomataDifference: 20187.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 347.2ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2246 SDtfs, 1214 SDslu, 4568 SDs, 0 SdLazy, 380 SolverSat, 33 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 17725.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2193.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=7, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.9ms AutomataMinimizationTime, 18 MinimizatonAttempts, 460 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 50 NumberOfFragments, 153 HoareAnnotationTreeSize, 38 FomulaSimplifications, 196 FormulaSimplificationTreeSizeReduction, 26.7ms HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 305.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1104.7ms SsaConstructionTime, 5333.9ms SatisfiabilityAnalysisTime, 4682.5ms InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 22 NumberOfNonLiveVariables, 24755 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9242]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - InvariantResult [Line: 9215]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 - InvariantResult [Line: 10195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2637]: Loop Invariant Derived loop invariant: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 10054]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10167]: Loop Invariant Derived loop invariant: \result + 1 <= 0 && !(map == 0) - InvariantResult [Line: 10065]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6954]: Loop Invariant Derived loop invariant: (!(map == 0) && \result == 0) && \result == 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10065]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10054]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: (mem == 0 && !(map == 0)) && mem == 0 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9193]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 15:22:04,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...