./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_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 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:03:53,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:03:53,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:03:53,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:03:53,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:03:53,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:03:53,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:03:53,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:03:53,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:03:53,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:03:53,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:03:53,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:03:53,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:03:53,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:03:53,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:03:53,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:03:53,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:03:53,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:03:53,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:03:53,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:03:53,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:03:53,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:03:53,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:03:53,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:03:53,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:03:53,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:03:53,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:03:53,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:03:53,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:03:53,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:03:53,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:03:53,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:03:53,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:03:53,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:03:53,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:03:53,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:03:53,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:03:53,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:03:53,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:03:53,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:03:53,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:03:53,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:03:53,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:03:53,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:03:53,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:03:53,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:03:53,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:03:53,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:03:53,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:03:53,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:03:53,316 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:03:53,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:03:53,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:03:53,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:03:53,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:03:53,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:03:53,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:03:53,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:03:53,318 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:03:53,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:03:53,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:03:53,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:03:53,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:03:53,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:03:53,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:03:53,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:03:53,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:03:53,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:03:53,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:03:53,320 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:03:53,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:03:53,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:03:53,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:03:53,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce [2021-12-22 14:03:53,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:03:53,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:03:53,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:03:53,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:03:53,531 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:03:53,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2021-12-22 14:03:53,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329a73b42/54be2b36155643be85a8f080bdea821b/FLAGb0ffbdaff [2021-12-22 14:03:54,260 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:03:54,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2021-12-22 14:03:54,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329a73b42/54be2b36155643be85a8f080bdea821b/FLAGb0ffbdaff [2021-12-22 14:03:54,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329a73b42/54be2b36155643be85a8f080bdea821b [2021-12-22 14:03:54,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:03:54,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:03:54,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:03:54,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:03:54,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:03:54,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:03:54" (1/1) ... [2021-12-22 14:03:54,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c3e607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:54, skipping insertion in model container [2021-12-22 14:03:54,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:03:54" (1/1) ... [2021-12-22 14:03:54,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:03:54,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:03:54,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2021-12-22 14:03:54,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2021-12-22 14:03:55,602 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,610 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,613 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,615 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,632 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,633 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:55,975 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:03:55,976 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:03:55,977 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:03:55,978 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:03:55,979 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:03:55,980 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:03:55,981 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:03:55,981 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:03:55,982 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:03:55,982 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:03:56,166 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:03:56,269 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,271 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:03:56,406 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:03:56,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2021-12-22 14:03:56,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2021-12-22 14:03:56,479 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,479 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,480 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,481 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,481 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,492 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,494 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,496 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,496 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,536 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:03:56,537 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:03:56,537 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:03:56,538 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:03:56,538 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:03:56,539 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:03:56,539 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:03:56,540 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:03:56,540 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:03:56,540 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:03:56,556 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:03:56,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:56,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:03:56,836 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:03:56,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56 WrapperNode [2021-12-22 14:03:56,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:03:56,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:03:56,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:03:56,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:03:56,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:56,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,061 INFO L137 Inliner]: procedures = 693, calls = 2792, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 879 [2021-12-22 14:03:57,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:03:57,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:03:57,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:03:57,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:03:57,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:03:57,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:03:57,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:03:57,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:03:57,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (1/1) ... [2021-12-22 14:03:57,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:03:57,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:03:57,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:03:57,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:03:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-22 14:03:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-22 14:03:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-22 14:03:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-22 14:03:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:03:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:03:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:03:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:03:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-22 14:03:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-22 14:03:57,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:03:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-22 14:03:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-22 14:03:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:03:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:03:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:03:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:03:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:03:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-22 14:03:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-22 14:03:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:03:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:03:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:03:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:03:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:03:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-12-22 14:03:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-12-22 14:03:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:03:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-22 14:03:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-22 14:03:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-22 14:03:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-22 14:03:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:03:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:03:57,528 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:03:57,530 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:03:58,667 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:03:58,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:03:58,678 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:03:58,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:58 BoogieIcfgContainer [2021-12-22 14:03:58,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:03:58,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:03:58,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:03:58,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:03:58,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:03:54" (1/3) ... [2021-12-22 14:03:58,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58534df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:03:58, skipping insertion in model container [2021-12-22 14:03:58,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:56" (2/3) ... [2021-12-22 14:03:58,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58534df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:03:58, skipping insertion in model container [2021-12-22 14:03:58,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:58" (3/3) ... [2021-12-22 14:03:58,689 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness.i [2021-12-22 14:03:58,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:03:58,695 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:03:58,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:03:58,758 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:03:58,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:03:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 88 states have (on average 1.2727272727272727) internal successors, (112), 89 states have internal predecessors, (112), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-12-22 14:03:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-22 14:03:58,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:58,796 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:58,798 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1812998439, now seen corresponding path program 1 times [2021-12-22 14:03:58,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:58,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800318109] [2021-12-22 14:03:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:58,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:03:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:03:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:03:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:03:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 14:03:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:03:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:03:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:03:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-22 14:03:59,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:59,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800318109] [2021-12-22 14:03:59,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800318109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:03:59,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:03:59,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:03:59,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365502608] [2021-12-22 14:03:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:03:59,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:03:59,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:03:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:03:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:03:59,564 INFO L87 Difference]: Start difference. First operand has 131 states, 88 states have (on average 1.2727272727272727) internal successors, (112), 89 states have internal predecessors, (112), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:03:59,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:03:59,798 INFO L93 Difference]: Finished difference Result 253 states and 352 transitions. [2021-12-22 14:03:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:03:59,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2021-12-22 14:03:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:03:59,808 INFO L225 Difference]: With dead ends: 253 [2021-12-22 14:03:59,808 INFO L226 Difference]: Without dead ends: 126 [2021-12-22 14:03:59,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:03:59,815 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 55 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:03:59,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 219 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:03:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-22 14:03:59,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-12-22 14:03:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 85 states have internal predecessors, (106), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-22 14:03:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 167 transitions. [2021-12-22 14:03:59,858 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 167 transitions. Word has length 72 [2021-12-22 14:03:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:03:59,859 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 167 transitions. [2021-12-22 14:03:59,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:03:59,860 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 167 transitions. [2021-12-22 14:03:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-22 14:03:59,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:59,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:59,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:03:59,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -795992417, now seen corresponding path program 1 times [2021-12-22 14:03:59,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:59,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346063724] [2021-12-22 14:03:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:59,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 14:04:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:04:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:04:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-22 14:04:00,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:00,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346063724] [2021-12-22 14:04:00,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346063724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:00,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:00,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:04:00,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611540825] [2021-12-22 14:04:00,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:00,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:04:00,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:04:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:00,213 INFO L87 Difference]: Start difference. First operand 126 states and 167 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-22 14:04:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:00,521 INFO L93 Difference]: Finished difference Result 213 states and 284 transitions. [2021-12-22 14:04:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:04:00,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 72 [2021-12-22 14:04:00,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:00,525 INFO L225 Difference]: With dead ends: 213 [2021-12-22 14:04:00,525 INFO L226 Difference]: Without dead ends: 129 [2021-12-22 14:04:00,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:04:00,527 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 108 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:00,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 456 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-22 14:04:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-12-22 14:04:00,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.255813953488372) internal successors, (108), 88 states have internal predecessors, (108), 31 states have call successors, (31), 10 states have call predecessors, (31), 11 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2021-12-22 14:04:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 170 transitions. [2021-12-22 14:04:00,540 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 170 transitions. Word has length 72 [2021-12-22 14:04:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:00,541 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 170 transitions. [2021-12-22 14:04:00,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-22 14:04:00,541 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2021-12-22 14:04:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 14:04:00,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:00,544 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:00,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:04:00,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:00,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash -565003148, now seen corresponding path program 1 times [2021-12-22 14:04:00,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:00,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469596698] [2021-12-22 14:04:00,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:00,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-22 14:04:00,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:00,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469596698] [2021-12-22 14:04:00,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469596698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:00,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:00,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:04:00,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435289053] [2021-12-22 14:04:00,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:00,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:04:00,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:04:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:04:00,979 INFO L87 Difference]: Start difference. First operand 129 states and 170 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-22 14:04:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:01,460 INFO L93 Difference]: Finished difference Result 225 states and 299 transitions. [2021-12-22 14:04:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:04:01,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 78 [2021-12-22 14:04:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:01,462 INFO L225 Difference]: With dead ends: 225 [2021-12-22 14:04:01,463 INFO L226 Difference]: Without dead ends: 167 [2021-12-22 14:04:01,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:04:01,464 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 226 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:01,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 665 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 14:04:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-22 14:04:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 146. [2021-12-22 14:04:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 100 states have internal predecessors, (123), 35 states have call successors, (35), 11 states have call predecessors, (35), 12 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2021-12-22 14:04:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-12-22 14:04:01,482 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 78 [2021-12-22 14:04:01,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:01,483 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-12-22 14:04:01,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-22 14:04:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-12-22 14:04:01,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 14:04:01,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:01,492 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:01,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:04:01,493 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1924525814, now seen corresponding path program 1 times [2021-12-22 14:04:01,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763633854] [2021-12-22 14:04:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:01,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-22 14:04:01,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:01,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763633854] [2021-12-22 14:04:01,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763633854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:01,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:01,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:04:01,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705483572] [2021-12-22 14:04:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:01,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:04:01,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:01,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:04:01,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:01,874 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:04:02,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:02,132 INFO L93 Difference]: Finished difference Result 250 states and 338 transitions. [2021-12-22 14:04:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:02,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2021-12-22 14:04:02,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:02,135 INFO L225 Difference]: With dead ends: 250 [2021-12-22 14:04:02,135 INFO L226 Difference]: Without dead ends: 194 [2021-12-22 14:04:02,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:02,136 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 67 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:02,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 441 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:04:02,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-12-22 14:04:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2021-12-22 14:04:02,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 128 states have (on average 1.2578125) internal successors, (161), 130 states have internal predecessors, (161), 51 states have call successors, (51), 11 states have call predecessors, (51), 12 states have return successors, (54), 50 states have call predecessors, (54), 50 states have call successors, (54) [2021-12-22 14:04:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 266 transitions. [2021-12-22 14:04:02,152 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 266 transitions. Word has length 78 [2021-12-22 14:04:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:02,153 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 266 transitions. [2021-12-22 14:04:02,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:04:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 266 transitions. [2021-12-22 14:04:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-22 14:04:02,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:02,155 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:02,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:04:02,155 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2071762423, now seen corresponding path program 1 times [2021-12-22 14:04:02,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:02,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446012222] [2021-12-22 14:04:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:02,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:04:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-22 14:04:02,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:02,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446012222] [2021-12-22 14:04:02,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446012222] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:02,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:02,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:04:02,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587161481] [2021-12-22 14:04:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:02,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:04:02,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:02,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:04:02,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:04:02,490 INFO L87 Difference]: Start difference. First operand 192 states and 266 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:02,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:02,871 INFO L93 Difference]: Finished difference Result 203 states and 282 transitions. [2021-12-22 14:04:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:04:02,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 90 [2021-12-22 14:04:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:02,874 INFO L225 Difference]: With dead ends: 203 [2021-12-22 14:04:02,874 INFO L226 Difference]: Without dead ends: 196 [2021-12-22 14:04:02,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:04:02,875 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 80 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:02,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 870 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-22 14:04:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-12-22 14:04:02,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.251908396946565) internal successors, (164), 134 states have internal predecessors, (164), 51 states have call successors, (51), 11 states have call predecessors, (51), 13 states have return successors, (60), 50 states have call predecessors, (60), 50 states have call successors, (60) [2021-12-22 14:04:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 275 transitions. [2021-12-22 14:04:02,891 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 275 transitions. Word has length 90 [2021-12-22 14:04:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:02,892 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 275 transitions. [2021-12-22 14:04:02,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 275 transitions. [2021-12-22 14:04:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:04:02,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:02,894 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:02,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:04:02,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1055189439, now seen corresponding path program 1 times [2021-12-22 14:04:02,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:02,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976699768] [2021-12-22 14:04:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:02,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:04:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 14:04:03,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:03,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976699768] [2021-12-22 14:04:03,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976699768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:03,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:03,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:04:03,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545425218] [2021-12-22 14:04:03,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:03,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:04:03,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:03,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:04:03,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:03,277 INFO L87 Difference]: Start difference. First operand 196 states and 275 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:03,667 INFO L93 Difference]: Finished difference Result 362 states and 524 transitions. [2021-12-22 14:04:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:04:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2021-12-22 14:04:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:03,669 INFO L225 Difference]: With dead ends: 362 [2021-12-22 14:04:03,669 INFO L226 Difference]: Without dead ends: 221 [2021-12-22 14:04:03,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:04:03,671 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 120 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:03,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 516 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:03,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-22 14:04:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 201. [2021-12-22 14:04:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 139 states have internal predecessors, (171), 51 states have call successors, (51), 11 states have call predecessors, (51), 13 states have return successors, (60), 50 states have call predecessors, (60), 50 states have call successors, (60) [2021-12-22 14:04:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2021-12-22 14:04:03,683 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 94 [2021-12-22 14:04:03,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:03,683 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2021-12-22 14:04:03,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2021-12-22 14:04:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:04:03,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:03,685 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:03,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:04:03,686 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:03,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1313354877, now seen corresponding path program 1 times [2021-12-22 14:04:03,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:03,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523053279] [2021-12-22 14:04:03,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:03,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:04:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:04,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:04,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523053279] [2021-12-22 14:04:04,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523053279] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:04,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371861557] [2021-12-22 14:04:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:04,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:04,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:04,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:04:04,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:04:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-22 14:04:04,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:04,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-22 14:04:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 14:04:05,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:04:05,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371861557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:05,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:04:05,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 20 [2021-12-22 14:04:05,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307056568] [2021-12-22 14:04:05,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:05,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 14:04:05,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:05,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 14:04:05,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-12-22 14:04:05,336 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-22 14:04:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:05,379 INFO L93 Difference]: Finished difference Result 373 states and 521 transitions. [2021-12-22 14:04:05,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 14:04:05,380 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2021-12-22 14:04:05,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:05,383 INFO L225 Difference]: With dead ends: 373 [2021-12-22 14:04:05,383 INFO L226 Difference]: Without dead ends: 220 [2021-12-22 14:04:05,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-12-22 14:04:05,385 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 20 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:05,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 941 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 57 Unchecked, 0.0s Time] [2021-12-22 14:04:05,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-22 14:04:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-12-22 14:04:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 157 states have internal predecessors, (194), 51 states have call successors, (51), 12 states have call predecessors, (51), 14 states have return successors, (60), 50 states have call predecessors, (60), 50 states have call successors, (60) [2021-12-22 14:04:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 305 transitions. [2021-12-22 14:04:05,406 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 305 transitions. Word has length 94 [2021-12-22 14:04:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 305 transitions. [2021-12-22 14:04:05,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-22 14:04:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 305 transitions. [2021-12-22 14:04:05,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:04:05,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:05,409 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:05,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:05,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:05,624 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:05,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:05,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1354029627, now seen corresponding path program 1 times [2021-12-22 14:04:05,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:05,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951238942] [2021-12-22 14:04:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:05,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:04:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:04:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 14:04:05,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:05,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951238942] [2021-12-22 14:04:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951238942] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:05,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026928452] [2021-12-22 14:04:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:05,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:05,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:05,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:04:05,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:04:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2602 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:04:06,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-22 14:04:06,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:04:06,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026928452] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:06,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:04:06,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-12-22 14:04:06,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307133633] [2021-12-22 14:04:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:06,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:04:06,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:04:06,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:06,467 INFO L87 Difference]: Start difference. First operand 220 states and 305 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:06,508 INFO L93 Difference]: Finished difference Result 379 states and 533 transitions. [2021-12-22 14:04:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2021-12-22 14:04:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:06,510 INFO L225 Difference]: With dead ends: 379 [2021-12-22 14:04:06,513 INFO L226 Difference]: Without dead ends: 229 [2021-12-22 14:04:06,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:06,524 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 20 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:06,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 493 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:04:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-12-22 14:04:06,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 212. [2021-12-22 14:04:06,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 147 states have (on average 1.2585034013605443) internal successors, (185), 149 states have internal predecessors, (185), 51 states have call successors, (51), 12 states have call predecessors, (51), 13 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2021-12-22 14:04:06,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 294 transitions. [2021-12-22 14:04:06,544 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 294 transitions. Word has length 94 [2021-12-22 14:04:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:06,544 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 294 transitions. [2021-12-22 14:04:06,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 294 transitions. [2021-12-22 14:04:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-22 14:04:06,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:06,546 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:06,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:06,746 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,SelfDestructingSolverStorable7 [2021-12-22 14:04:06,747 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash -805510601, now seen corresponding path program 1 times [2021-12-22 14:04:06,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:06,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77510381] [2021-12-22 14:04:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:06,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:04:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:04:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:04:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:04:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:04:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-22 14:04:07,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:07,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77510381] [2021-12-22 14:04:07,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77510381] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:07,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238363467] [2021-12-22 14:04:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:07,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:07,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:04:07,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:04:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:07,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2614 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-22 14:04:07,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-22 14:04:07,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:04:07,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238363467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:07,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:04:07,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2021-12-22 14:04:07,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366760047] [2021-12-22 14:04:07,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:07,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:04:07,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:04:07,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-22 14:04:07,738 INFO L87 Difference]: Start difference. First operand 212 states and 294 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 14:04:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:07,858 INFO L93 Difference]: Finished difference Result 367 states and 515 transitions. [2021-12-22 14:04:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 14:04:07,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 98 [2021-12-22 14:04:07,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:07,861 INFO L225 Difference]: With dead ends: 367 [2021-12-22 14:04:07,861 INFO L226 Difference]: Without dead ends: 217 [2021-12-22 14:04:07,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:04:07,863 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 12 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:07,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1191 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:04:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-22 14:04:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-12-22 14:04:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 151 states have (on average 1.2516556291390728) internal successors, (189), 154 states have internal predecessors, (189), 51 states have call successors, (51), 12 states have call predecessors, (51), 14 states have return successors, (63), 50 states have call predecessors, (63), 50 states have call successors, (63) [2021-12-22 14:04:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 303 transitions. [2021-12-22 14:04:07,882 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 303 transitions. Word has length 98 [2021-12-22 14:04:07,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:07,884 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 303 transitions. [2021-12-22 14:04:07,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 14:04:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 303 transitions. [2021-12-22 14:04:07,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:07,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:07,888 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:07,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:08,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:08,110 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1170955310, now seen corresponding path program 1 times [2021-12-22 14:04:08,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094030041] [2021-12-22 14:04:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:08,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-22 14:04:08,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:08,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094030041] [2021-12-22 14:04:08,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094030041] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:08,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426395319] [2021-12-22 14:04:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:08,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:08,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:08,316 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) [2021-12-22 14:04:08,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:04:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:08,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 2619 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:04:08,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-22 14:04:08,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:04:08,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426395319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:08,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:04:08,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-12-22 14:04:08,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438521038] [2021-12-22 14:04:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:08,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:04:08,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:04:08,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:08,961 INFO L87 Difference]: Start difference. First operand 217 states and 303 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:08,995 INFO L93 Difference]: Finished difference Result 377 states and 535 transitions. [2021-12-22 14:04:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:08,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2021-12-22 14:04:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:09,003 INFO L225 Difference]: With dead ends: 377 [2021-12-22 14:04:09,003 INFO L226 Difference]: Without dead ends: 220 [2021-12-22 14:04:09,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:09,005 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 9 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:09,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 486 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:04:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-22 14:04:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2021-12-22 14:04:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 151 states have (on average 1.2384105960264902) internal successors, (187), 154 states have internal predecessors, (187), 51 states have call successors, (51), 12 states have call predecessors, (51), 14 states have return successors, (63), 50 states have call predecessors, (63), 50 states have call successors, (63) [2021-12-22 14:04:09,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 301 transitions. [2021-12-22 14:04:09,018 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 301 transitions. Word has length 100 [2021-12-22 14:04:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:09,018 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 301 transitions. [2021-12-22 14:04:09,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:09,019 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 301 transitions. [2021-12-22 14:04:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:09,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:09,020 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:09,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:09,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:09,245 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:09,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:09,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1786047986, now seen corresponding path program 1 times [2021-12-22 14:04:09,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:09,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354236195] [2021-12-22 14:04:09,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:09,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-22 14:04:09,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:09,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354236195] [2021-12-22 14:04:09,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354236195] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:09,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602354486] [2021-12-22 14:04:09,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:09,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:09,435 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) [2021-12-22 14:04:09,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 14:04:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:09,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2621 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:04:09,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-22 14:04:10,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:04:10,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602354486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:10,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:04:10,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-12-22 14:04:10,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914459855] [2021-12-22 14:04:10,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:10,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:04:10,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:10,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:04:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:10,059 INFO L87 Difference]: Start difference. First operand 217 states and 301 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:10,084 INFO L93 Difference]: Finished difference Result 383 states and 546 transitions. [2021-12-22 14:04:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:10,085 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2021-12-22 14:04:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:10,086 INFO L225 Difference]: With dead ends: 383 [2021-12-22 14:04:10,086 INFO L226 Difference]: Without dead ends: 226 [2021-12-22 14:04:10,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:10,088 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 34 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:10,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 484 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:04:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-12-22 14:04:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 213. [2021-12-22 14:04:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 147 states have (on average 1.2244897959183674) internal successors, (180), 150 states have internal predecessors, (180), 51 states have call successors, (51), 12 states have call predecessors, (51), 14 states have return successors, (63), 50 states have call predecessors, (63), 50 states have call successors, (63) [2021-12-22 14:04:10,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 294 transitions. [2021-12-22 14:04:10,099 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 294 transitions. Word has length 100 [2021-12-22 14:04:10,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:10,099 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 294 transitions. [2021-12-22 14:04:10,099 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:04:10,099 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 294 transitions. [2021-12-22 14:04:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:10,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:10,101 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:10,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:10,327 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,SelfDestructingSolverStorable10 [2021-12-22 14:04:10,328 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1106775732, now seen corresponding path program 1 times [2021-12-22 14:04:10,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:10,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549518631] [2021-12-22 14:04:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:10,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 14:04:11,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:11,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549518631] [2021-12-22 14:04:11,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549518631] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:11,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524628174] [2021-12-22 14:04:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:11,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:11,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:11,162 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) [2021-12-22 14:04:11,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 14:04:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:11,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2616 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-22 14:04:11,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 14:04:12,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:12,820 INFO L353 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-12-22 14:04:12,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2021-12-22 14:04:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:12,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524628174] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:04:12,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:04:12,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 9] total 24 [2021-12-22 14:04:12,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420430881] [2021-12-22 14:04:12,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:12,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-22 14:04:12,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:12,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-22 14:04:12,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-12-22 14:04:12,884 INFO L87 Difference]: Start difference. First operand 213 states and 294 transitions. Second operand has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-22 14:04:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:14,099 INFO L93 Difference]: Finished difference Result 259 states and 342 transitions. [2021-12-22 14:04:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 14:04:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 100 [2021-12-22 14:04:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:14,102 INFO L225 Difference]: With dead ends: 259 [2021-12-22 14:04:14,102 INFO L226 Difference]: Without dead ends: 231 [2021-12-22 14:04:14,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 203 SyntacticMatches, 9 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=219, Invalid=971, Unknown=0, NotChecked=0, Total=1190 [2021-12-22 14:04:14,103 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 350 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 325 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:14,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 903 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 926 Invalid, 0 Unknown, 325 Unchecked, 0.8s Time] [2021-12-22 14:04:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-12-22 14:04:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 223. [2021-12-22 14:04:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 155 states have (on average 1.2129032258064516) internal successors, (188), 158 states have internal predecessors, (188), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (63), 50 states have call predecessors, (63), 50 states have call successors, (63) [2021-12-22 14:04:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 302 transitions. [2021-12-22 14:04:14,116 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 302 transitions. Word has length 100 [2021-12-22 14:04:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:14,117 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 302 transitions. [2021-12-22 14:04:14,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-22 14:04:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 302 transitions. [2021-12-22 14:04:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:14,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:14,118 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:14,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:14,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:14,336 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 61814546, now seen corresponding path program 1 times [2021-12-22 14:04:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:14,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297706154] [2021-12-22 14:04:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:14,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-22 14:04:14,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:14,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297706154] [2021-12-22 14:04:14,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297706154] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:14,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669972353] [2021-12-22 14:04:14,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:14,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:14,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:14,800 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) [2021-12-22 14:04:14,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 14:04:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:15,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-22 14:04:15,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 14:04:16,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:17,093 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-22 14:04:17,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 1 [2021-12-22 14:04:17,292 INFO L353 Elim1Store]: treesize reduction 18, result has 48.6 percent of original size [2021-12-22 14:04:17,292 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 35 [2021-12-22 14:04:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:17,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669972353] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:04:17,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:04:17,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 13] total 33 [2021-12-22 14:04:17,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924945974] [2021-12-22 14:04:17,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:17,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-22 14:04:17,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-22 14:04:17,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2021-12-22 14:04:17,448 INFO L87 Difference]: Start difference. First operand 223 states and 302 transitions. Second operand has 33 states, 33 states have (on average 4.090909090909091) internal successors, (135), 32 states have internal predecessors, (135), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-22 14:04:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:20,182 INFO L93 Difference]: Finished difference Result 353 states and 508 transitions. [2021-12-22 14:04:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-22 14:04:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.090909090909091) internal successors, (135), 32 states have internal predecessors, (135), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 100 [2021-12-22 14:04:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:20,184 INFO L225 Difference]: With dead ends: 353 [2021-12-22 14:04:20,184 INFO L226 Difference]: Without dead ends: 341 [2021-12-22 14:04:20,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 193 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=618, Invalid=2804, Unknown=0, NotChecked=0, Total=3422 [2021-12-22 14:04:20,186 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 313 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 574 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:20,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1823 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1747 Invalid, 0 Unknown, 574 Unchecked, 1.5s Time] [2021-12-22 14:04:20,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-12-22 14:04:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 334. [2021-12-22 14:04:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 232 states have (on average 1.2155172413793103) internal successors, (282), 235 states have internal predecessors, (282), 81 states have call successors, (81), 17 states have call predecessors, (81), 20 states have return successors, (117), 81 states have call predecessors, (117), 80 states have call successors, (117) [2021-12-22 14:04:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 480 transitions. [2021-12-22 14:04:20,209 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 480 transitions. Word has length 100 [2021-12-22 14:04:20,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:20,209 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 480 transitions. [2021-12-22 14:04:20,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.090909090909091) internal successors, (135), 32 states have internal predecessors, (135), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-22 14:04:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 480 transitions. [2021-12-22 14:04:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:20,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:20,211 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:20,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:20,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:20,436 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:20,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash 319979984, now seen corresponding path program 1 times [2021-12-22 14:04:20,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:20,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944979699] [2021-12-22 14:04:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:20,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 14:04:20,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:20,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944979699] [2021-12-22 14:04:20,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944979699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:20,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:20,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:04:20,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476570578] [2021-12-22 14:04:20,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:20,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:04:20,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:20,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:04:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:20,688 INFO L87 Difference]: Start difference. First operand 334 states and 480 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:21,012 INFO L93 Difference]: Finished difference Result 490 states and 688 transitions. [2021-12-22 14:04:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:04:21,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2021-12-22 14:04:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:21,015 INFO L225 Difference]: With dead ends: 490 [2021-12-22 14:04:21,015 INFO L226 Difference]: Without dead ends: 325 [2021-12-22 14:04:21,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:04:21,016 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 78 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:21,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 515 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-12-22 14:04:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-12-22 14:04:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 224 states have (on average 1.2142857142857142) internal successors, (272), 226 states have internal predecessors, (272), 81 states have call successors, (81), 17 states have call predecessors, (81), 19 states have return successors, (116), 81 states have call predecessors, (116), 80 states have call successors, (116) [2021-12-22 14:04:21,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 469 transitions. [2021-12-22 14:04:21,053 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 469 transitions. Word has length 100 [2021-12-22 14:04:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:21,054 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 469 transitions. [2021-12-22 14:04:21,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 469 transitions. [2021-12-22 14:04:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:04:21,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:21,056 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:21,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 14:04:21,057 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:21,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 102489296, now seen corresponding path program 1 times [2021-12-22 14:04:21,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:21,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841301886] [2021-12-22 14:04:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:21,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:21,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841301886] [2021-12-22 14:04:21,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841301886] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:21,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089797367] [2021-12-22 14:04:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:21,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:21,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:21,820 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) [2021-12-22 14:04:21,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 14:04:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-22 14:04:22,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 14:04:23,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:24,105 INFO L353 Elim1Store]: treesize reduction 39, result has 46.6 percent of original size [2021-12-22 14:04:24,105 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 48 [2021-12-22 14:04:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:24,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089797367] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:04:24,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:04:24,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 30 [2021-12-22 14:04:24,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555594389] [2021-12-22 14:04:24,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:24,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-22 14:04:24,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:24,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-22 14:04:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2021-12-22 14:04:24,336 INFO L87 Difference]: Start difference. First operand 325 states and 469 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-22 14:04:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:26,540 INFO L93 Difference]: Finished difference Result 349 states and 492 transitions. [2021-12-22 14:04:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-22 14:04:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 100 [2021-12-22 14:04:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:26,543 INFO L225 Difference]: With dead ends: 349 [2021-12-22 14:04:26,543 INFO L226 Difference]: Without dead ends: 337 [2021-12-22 14:04:26,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 198 SyntacticMatches, 10 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=382, Invalid=1780, Unknown=0, NotChecked=0, Total=2162 [2021-12-22 14:04:26,545 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 240 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 195 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:26,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 994 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1090 Invalid, 0 Unknown, 195 Unchecked, 1.1s Time] [2021-12-22 14:04:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-12-22 14:04:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 320. [2021-12-22 14:04:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 220 states have (on average 1.2181818181818183) internal successors, (268), 221 states have internal predecessors, (268), 81 states have call successors, (81), 17 states have call predecessors, (81), 18 states have return successors, (107), 81 states have call predecessors, (107), 80 states have call successors, (107) [2021-12-22 14:04:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 456 transitions. [2021-12-22 14:04:26,575 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 456 transitions. Word has length 100 [2021-12-22 14:04:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:26,576 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 456 transitions. [2021-12-22 14:04:26,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-22 14:04:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 456 transitions. [2021-12-22 14:04:26,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-22 14:04:26,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:26,578 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:26,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:26,791 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,SelfDestructingSolverStorable14 [2021-12-22 14:04:26,792 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash -430654057, now seen corresponding path program 1 times [2021-12-22 14:04:26,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:26,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563622771] [2021-12-22 14:04:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:26,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 14:04:27,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:27,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563622771] [2021-12-22 14:04:27,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563622771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:27,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:27,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 14:04:27,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338341486] [2021-12-22 14:04:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:27,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 14:04:27,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:27,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 14:04:27,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-22 14:04:27,043 INFO L87 Difference]: Start difference. First operand 320 states and 456 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:27,474 INFO L93 Difference]: Finished difference Result 331 states and 473 transitions. [2021-12-22 14:04:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:04:27,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2021-12-22 14:04:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:27,477 INFO L225 Difference]: With dead ends: 331 [2021-12-22 14:04:27,477 INFO L226 Difference]: Without dead ends: 289 [2021-12-22 14:04:27,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-12-22 14:04:27,478 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 84 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:27,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 1092 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-22 14:04:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285. [2021-12-22 14:04:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 197 states have (on average 1.2030456852791878) internal successors, (237), 199 states have internal predecessors, (237), 69 states have call successors, (69), 17 states have call predecessors, (69), 18 states have return successors, (86), 68 states have call predecessors, (86), 67 states have call successors, (86) [2021-12-22 14:04:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 392 transitions. [2021-12-22 14:04:27,514 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 392 transitions. Word has length 102 [2021-12-22 14:04:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:27,515 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 392 transitions. [2021-12-22 14:04:27,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-22 14:04:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 392 transitions. [2021-12-22 14:04:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-22 14:04:27,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:27,517 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:27,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 14:04:27,517 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 704139607, now seen corresponding path program 1 times [2021-12-22 14:04:27,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:27,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261939636] [2021-12-22 14:04:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:27,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:04:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:04:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:04:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:04:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:04:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:04:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:04:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:04:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:28,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:28,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261939636] [2021-12-22 14:04:28,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261939636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:28,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:28,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-22 14:04:28,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043173281] [2021-12-22 14:04:28,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:28,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-22 14:04:28,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:28,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-22 14:04:28,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-12-22 14:04:28,229 INFO L87 Difference]: Start difference. First operand 285 states and 392 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-22 14:04:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:29,153 INFO L93 Difference]: Finished difference Result 295 states and 406 transitions. [2021-12-22 14:04:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 14:04:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 102 [2021-12-22 14:04:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:29,155 INFO L225 Difference]: With dead ends: 295 [2021-12-22 14:04:29,156 INFO L226 Difference]: Without dead ends: 230 [2021-12-22 14:04:29,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2021-12-22 14:04:29,157 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 177 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:29,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 1095 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 14:04:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-12-22 14:04:29,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 167. [2021-12-22 14:04:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 118 states have (on average 1.1864406779661016) internal successors, (140), 120 states have internal predecessors, (140), 33 states have call successors, (33), 14 states have call predecessors, (33), 15 states have return successors, (36), 32 states have call predecessors, (36), 32 states have call successors, (36) [2021-12-22 14:04:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2021-12-22 14:04:29,169 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 102 [2021-12-22 14:04:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:29,170 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2021-12-22 14:04:29,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-22 14:04:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2021-12-22 14:04:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-22 14:04:29,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:29,172 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:29,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 14:04:29,172 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:29,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:29,172 INFO L85 PathProgramCache]: Analyzing trace with hash 523668838, now seen corresponding path program 1 times [2021-12-22 14:04:29,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:29,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862525644] [2021-12-22 14:04:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:29,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:04:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 14:04:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:04:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:04:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:04:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 14:04:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 14:04:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:04:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 14:04:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-12-22 14:04:29,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:29,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862525644] [2021-12-22 14:04:29,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862525644] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:29,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091124963] [2021-12-22 14:04:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:29,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:29,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:29,721 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) [2021-12-22 14:04:29,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-22 14:04:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:30,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-22 14:04:30,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 14:04:30,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 14:04:30,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091124963] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:04:30,662 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:04:30,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 24 [2021-12-22 14:04:30,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148984955] [2021-12-22 14:04:30,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:30,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-22 14:04:30,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-22 14:04:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2021-12-22 14:04:30,664 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand has 24 states, 21 states have (on average 3.857142857142857) internal successors, (81), 18 states have internal predecessors, (81), 10 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 10 states have call successors, (23) [2021-12-22 14:04:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:31,138 INFO L93 Difference]: Finished difference Result 185 states and 223 transitions. [2021-12-22 14:04:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 14:04:31,139 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.857142857142857) internal successors, (81), 18 states have internal predecessors, (81), 10 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 10 states have call successors, (23) Word has length 118 [2021-12-22 14:04:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:31,140 INFO L225 Difference]: With dead ends: 185 [2021-12-22 14:04:31,140 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 14:04:31,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 14:04:31,141 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 64 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:31,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 367 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:04:31,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 14:04:31,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 14:04:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:04:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 14:04:31,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2021-12-22 14:04:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:31,143 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 14:04:31,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.857142857142857) internal successors, (81), 18 states have internal predecessors, (81), 10 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 10 states have call successors, (23) [2021-12-22 14:04:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 14:04:31,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 14:04:31,146 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 14:04:31,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:31,355 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 [2021-12-22 14:04:31,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 14:04:34,948 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-22 14:04:34,948 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2021-12-22 14:04:34,948 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-22 14:04:34,948 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-12-22 14:04:34,948 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (= |old(#length)| |#length|) (or (<= |ensure_string_is_allocated_bounded_length_~len~1#1| (+ (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)) 15)) .cse0) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse0 (<= (* 18446744073709551616 (div (+ 18446744073709551615 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (<= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (+ 15 (* 18446744073709551616 (div (+ (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) (= |old(#valid)| |#valid|))) [2021-12-22 14:04:34,948 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-12-22 14:04:34,948 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:34,949 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-22 14:04:34,949 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:34,949 INFO L861 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7684 7704) the Hoare annotation is: true [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7697(lines 7697 7701) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7684 7704) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L861 garLoopResultBuilder]: At program point L7686(line 7686) the Hoare annotation is: true [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7688(lines 7685 7704) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7684 7704) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L861 garLoopResultBuilder]: At program point L7686-1(line 7686) the Hoare annotation is: true [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7364-6(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7364-4(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7364-3(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7364-8(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L861 garLoopResultBuilder]: At program point aws_byte_buf_is_validENTRY(lines 7359 7365) the Hoare annotation is: true [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point aws_byte_buf_is_validFINAL(lines 7359 7365) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7361-3(line 7361) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point L7361-1(line 7361) no Hoare annotation was computed. [2021-12-22 14:04:34,950 INFO L858 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7359 7365) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361(lines 7361 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361-7(lines 7361 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361-6(lines 7361 7362) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361-4(lines 7361 7362) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361-11(lines 7361 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7361-9(lines 7361 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7364-2(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L7364(line 7364) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:34,951 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-12-22 14:04:34,952 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-22 14:04:34,952 INFO L854 garLoopResultBuilder]: At program point L9408(line 9408) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,952 INFO L858 garLoopResultBuilder]: For program point L9408-1(line 9408) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L854 garLoopResultBuilder]: At program point L9408-2(lines 9386 9409) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L854 garLoopResultBuilder]: At program point L6610(line 6610) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-12-22 14:04:34,953 INFO L861 garLoopResultBuilder]: At program point L9558(line 9558) the Hoare annotation is: true [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L6610-3(lines 6610 6612) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L6610-1(lines 6610 6612) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L854 garLoopResultBuilder]: At program point L9551(line 9551) the Hoare annotation is: false [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L9551-1(line 9551) no Hoare annotation was computed. [2021-12-22 14:04:34,953 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L6612-1(line 6612) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L6612(line 6612) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L9544-1(line 9544) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-12-22 14:04:34,954 INFO L858 garLoopResultBuilder]: For program point L9388(line 9388) no Hoare annotation was computed. [2021-12-22 14:04:34,954 INFO L854 garLoopResultBuilder]: At program point L9388-2(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,955 INFO L854 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: false [2021-12-22 14:04:34,955 INFO L854 garLoopResultBuilder]: At program point L9553-1(line 9553) the Hoare annotation is: false [2021-12-22 14:04:34,955 INFO L858 garLoopResultBuilder]: For program point L9553-2(line 9553) no Hoare annotation was computed. [2021-12-22 14:04:34,955 INFO L858 garLoopResultBuilder]: For program point L9388-3(line 9388) no Hoare annotation was computed. [2021-12-22 14:04:34,955 INFO L854 garLoopResultBuilder]: At program point L9388-4(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,955 INFO L858 garLoopResultBuilder]: For program point L9388-5(line 9388) no Hoare annotation was computed. [2021-12-22 14:04:34,957 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 14:04:34,957 INFO L858 garLoopResultBuilder]: For program point L9389(line 9389) no Hoare annotation was computed. [2021-12-22 14:04:34,957 INFO L854 garLoopResultBuilder]: At program point L9389-2(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,957 INFO L854 garLoopResultBuilder]: At program point L9546(line 9546) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) (+ |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 8)) 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-12-22 14:04:34,957 INFO L858 garLoopResultBuilder]: For program point L9389-3(line 9389) no Hoare annotation was computed. [2021-12-22 14:04:34,957 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-12-22 14:04:34,958 INFO L858 garLoopResultBuilder]: For program point L9538(lines 9538 9557) no Hoare annotation was computed. [2021-12-22 14:04:34,958 INFO L854 garLoopResultBuilder]: At program point L9546-1(line 9546) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1351#1| 0) .cse4 .cse5 (<= 0 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1351#1|)) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,958 INFO L854 garLoopResultBuilder]: At program point L9389-4(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,958 INFO L858 garLoopResultBuilder]: For program point L9546-2(line 9546) no Hoare annotation was computed. [2021-12-22 14:04:34,958 INFO L858 garLoopResultBuilder]: For program point L9389-5(line 9389) no Hoare annotation was computed. [2021-12-22 14:04:34,958 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-12-22 14:04:34,958 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 14:04:34,959 INFO L858 garLoopResultBuilder]: For program point L9390(lines 9390 9398) no Hoare annotation was computed. [2021-12-22 14:04:34,959 INFO L861 garLoopResultBuilder]: At program point L9539(line 9539) the Hoare annotation is: true [2021-12-22 14:04:34,959 INFO L858 garLoopResultBuilder]: For program point L9539-1(lines 9539 9540) no Hoare annotation was computed. [2021-12-22 14:04:34,959 INFO L861 garLoopResultBuilder]: At program point L9539-2(line 9539) the Hoare annotation is: true [2021-12-22 14:04:34,959 INFO L858 garLoopResultBuilder]: For program point L9539-3(line 9539) no Hoare annotation was computed. [2021-12-22 14:04:34,959 INFO L858 garLoopResultBuilder]: For program point L9539-5(lines 9539 9540) no Hoare annotation was computed. [2021-12-22 14:04:34,959 INFO L854 garLoopResultBuilder]: At program point L9556(line 9556) the Hoare annotation is: (and (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1360#1| 1) (<= 1 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1360#1|) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2021-12-22 14:04:34,960 INFO L858 garLoopResultBuilder]: For program point L9556-1(line 9556) no Hoare annotation was computed. [2021-12-22 14:04:34,960 INFO L858 garLoopResultBuilder]: For program point L9399(lines 9399 9407) no Hoare annotation was computed. [2021-12-22 14:04:34,960 INFO L854 garLoopResultBuilder]: At program point L9548(line 9548) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse1) 18446744073709551616)) .cse1)) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse1 (+ .cse6 (* 18446744073709551616 (div (+ (* (- 1) .cse6) 18446744073709551615 (* 18446744073709551616 (div .cse1 18446744073709551616))) 18446744073709551616)))) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,960 INFO L858 garLoopResultBuilder]: For program point L9548-1(lines 9548 9549) no Hoare annotation was computed. [2021-12-22 14:04:34,960 INFO L854 garLoopResultBuilder]: At program point L6600(lines 6598 6601) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2021-12-22 14:04:34,960 INFO L858 garLoopResultBuilder]: For program point L9548-3(lines 9548 9549) no Hoare annotation was computed. [2021-12-22 14:04:34,960 INFO L858 garLoopResultBuilder]: For program point L9548-4(lines 9548 9554) no Hoare annotation was computed. [2021-12-22 14:04:34,961 INFO L854 garLoopResultBuilder]: At program point L9548-6(lines 9548 9554) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse5 16))) (let ((.cse1 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse2 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse0 (select .cse5 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and (<= 0 (+ (* 18446744073709551616 (div (* (- 1) .cse0) 18446744073709551616)) .cse0)) .cse1 .cse2 .cse3) (and .cse1 .cse2 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) (<= .cse0 (+ .cse4 (* 18446744073709551616 (div (+ (* (- 1) .cse4) 18446744073709551615 (* 18446744073709551616 (div .cse0 18446744073709551616))) 18446744073709551616)))) .cse3 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2021-12-22 14:04:34,961 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-22 14:04:34,961 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-22 14:04:34,961 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-22 14:04:34,961 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:34,961 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:34,961 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-22 14:04:34,964 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:34,966 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 14:04:34,977 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-22 14:04:34,978 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2021-12-22 14:04:34,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-22 14:04:34,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2021-12-22 14:04:34,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 02:04:34 BoogieIcfgContainer [2021-12-22 14:04:34,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 14:04:34,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 14:04:34,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 14:04:34,984 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 14:04:34,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:58" (3/4) ... [2021-12-22 14:04:34,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2021-12-22 14:04:34,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-22 14:04:34,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-22 14:04:34,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-22 14:04:34,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-22 14:04:34,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-22 14:04:35,005 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2021-12-22 14:04:35,007 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-12-22 14:04:35,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-12-22 14:04:35,009 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-22 14:04:35,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-22 14:04:35,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-22 14:04:35,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 14:04:35,013 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 14:04:35,043 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2021-12-22 14:04:35,728 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 14:04:35,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 14:04:35,729 INFO L158 Benchmark]: Toolchain (without parser) took 41349.24ms. Allocated memory was 94.4MB in the beginning and 438.3MB in the end (delta: 343.9MB). Free memory was 53.1MB in the beginning and 230.4MB in the end (delta: -177.3MB). Peak memory consumption was 279.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,730 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:04:35,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2453.98ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.1MB in the beginning and 57.7MB in the end (delta: -4.7MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 224.05ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 45.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,730 INFO L158 Benchmark]: Boogie Preprocessor took 88.69ms. Allocated memory is still 113.2MB. Free memory was 45.7MB in the beginning and 38.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,731 INFO L158 Benchmark]: RCFGBuilder took 1528.98ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 38.5MB in the beginning and 58.9MB in the end (delta: -20.4MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,731 INFO L158 Benchmark]: TraceAbstraction took 36300.43ms. Allocated memory was 144.7MB in the beginning and 438.3MB in the end (delta: 293.6MB). Free memory was 57.8MB in the beginning and 284.7MB in the end (delta: -226.9MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,731 INFO L158 Benchmark]: Witness Printer took 745.41ms. Allocated memory is still 438.3MB. Free memory was 284.7MB in the beginning and 230.4MB in the end (delta: 54.3MB). Peak memory consumption was 168.6MB. Max. memory is 16.1GB. [2021-12-22 14:04:35,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2453.98ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.1MB in the beginning and 57.7MB in the end (delta: -4.7MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 224.05ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 45.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.69ms. Allocated memory is still 113.2MB. Free memory was 45.7MB in the beginning and 38.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1528.98ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 38.5MB in the beginning and 58.9MB in the end (delta: -20.4MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36300.43ms. Allocated memory was 144.7MB in the beginning and 438.3MB in the end (delta: 293.6MB). Free memory was 57.8MB in the beginning and 284.7MB in the end (delta: -226.9MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Witness Printer took 745.41ms. Allocated memory is still 438.3MB. Free memory was 284.7MB in the beginning and 230.4MB in the end (delta: 54.3MB). Peak memory consumption was 168.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.2s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2204 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2057 mSDsluCounter, 13551 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1151 IncrementalHoareTripleChecker+Unchecked, 10767 mSDsCounter, 686 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7413 IncrementalHoareTripleChecker+Invalid, 9250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 686 mSolverCounterUnsat, 2784 mSDtfsCounter, 7413 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1993 GetRequests, 1658 SyntacticMatches, 30 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=13, InterpolantAutomatonStates: 195, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 175 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 440 PreInvPairs, 484 NumberOfFragments, 1577 HoareAnnotationTreeSize, 440 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 2961 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 2596 NumberOfCodeBlocks, 2596 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2983 ConstructedInterpolants, 101 QuantifiedInterpolants, 16106 SizeOfPredicates, 75 NumberOfNonLiveVariables, 23635 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 31 InterpolantComputations, 14 PerfectInterpolantSequences, 1856/2033 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6598]: Loop Invariant Derived loop invariant: ((str == 0 && str == 0) && !(buf == 0)) && buf == 0 - InvariantResult [Line: 9558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9386]: Loop Invariant [2021-12-22 14:04:35,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-22 14:04:35,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2021-12-22 14:04:35,742 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-22 14:04:35,742 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR Derived loop invariant: (((((str == 0 && 0 <= 18446744073709551616 * (-1 * unknown-#memory_int-unknown[buf][buf] / 18446744073709551616) + unknown-#memory_int-unknown[buf][buf]) && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && !(buf == 0)) && buf == 0) || ((((((((str == 0 && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && !(buf == 0)) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR] == 0)) && unknown-#memory_int-unknown[buf][buf] <= unknown-#memory_int-unknown[buf][16] + 18446744073709551616 * ((-1 * unknown-#memory_int-unknown[buf][16] + 18446744073709551615 + 18446744073709551616 * (unknown-#memory_int-unknown[buf][buf] / 18446744073709551616)) / 18446744073709551616)) && buf == 0) && buf == buf) && buf == 0) - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) RESULT: Ultimate proved your program to be correct! [2021-12-22 14:04:35,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE