/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:18:03,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:18:03,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:18:03,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:18:03,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:18:03,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:18:03,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:18:03,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:18:03,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:18:03,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:18:03,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:18:03,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:18:03,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:18:03,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:18:03,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:18:03,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:18:03,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:18:03,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:18:03,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:18:03,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:18:03,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:18:03,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:18:03,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:18:03,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:18:03,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:18:03,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:18:03,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:18:03,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:18:03,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:18:03,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:18:03,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:18:03,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:18:03,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:18:03,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:18:03,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:18:03,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:18:03,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:18:03,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:18:03,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:18:03,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:18:03,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:18:03,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:18:03,494 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:18:03,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:18:03,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:18:03,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:18:03,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:18:03,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:18:03,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:18:03,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:18:03,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:18:03,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:18:03,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:18:03,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:18:03,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:18:03,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:18:03,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:18:03,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:18:03,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:18:03,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:18:03,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:18:03,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:18:03,499 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:18:03,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:18:03,500 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:18:03,500 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:18:03,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:18:03,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:18:03,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:18:03,701 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:18:03,701 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:18:03,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2023-03-31 01:18:04,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:18:05,061 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:18:05,062 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2023-03-31 01:18:05,069 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3754eef9e/8f0f3a1b6c72401681e61a647a3f7a13/FLAG39f6aac0e [2023-03-31 01:18:05,091 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3754eef9e/8f0f3a1b6c72401681e61a647a3f7a13 [2023-03-31 01:18:05,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:18:05,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:18:05,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:18:05,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:18:05,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:18:05,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4bc5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05, skipping insertion in model container [2023-03-31 01:18:05,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:18:05,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:18:05,286 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2023-03-31 01:18:05,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:18:05,320 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:18:05,357 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2023-03-31 01:18:05,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:18:05,386 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:18:05,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05 WrapperNode [2023-03-31 01:18:05,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:18:05,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:18:05,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:18:05,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:18:05,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:18:05,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:18:05,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:18:05,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:18:05,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (1/1) ... [2023-03-31 01:18:05,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:18:05,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:05,463 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) [2023-03-31 01:18:05,485 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 [2023-03-31 01:18:05,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 01:18:05,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-03-31 01:18:05,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 01:18:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 01:18:05,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 01:18:05,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 01:18:05,515 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 01:18:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 01:18:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 01:18:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 01:18:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:18:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:18:05,627 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:18:05,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:18:06,011 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:18:06,017 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:18:06,017 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 01:18:06,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:18:06 BoogieIcfgContainer [2023-03-31 01:18:06,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:18:06,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:18:06,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:18:06,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:18:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:18:05" (1/3) ... [2023-03-31 01:18:06,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2195a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:18:06, skipping insertion in model container [2023-03-31 01:18:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:18:05" (2/3) ... [2023-03-31 01:18:06,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2195a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:18:06, skipping insertion in model container [2023-03-31 01:18:06,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:18:06" (3/3) ... [2023-03-31 01:18:06,024 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2023-03-31 01:18:06,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:18:06,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:18:06,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:18:06,073 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@243b6a2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:18:06,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:18:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 120 states have internal predecessors, (136), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2023-03-31 01:18:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-03-31 01:18:06,086 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:06,087 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 01:18:06,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:06,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1494076043, now seen corresponding path program 1 times [2023-03-31 01:18:06,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:06,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883096973] [2023-03-31 01:18:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:18:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:18:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:06,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:06,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883096973] [2023-03-31 01:18:06,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883096973] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:06,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:06,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 01:18:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826371001] [2023-03-31 01:18:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:06,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 01:18:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:06,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 01:18:06,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:18:06,358 INFO L87 Difference]: Start difference. First operand has 191 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 120 states have internal predecessors, (136), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:18:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:06,785 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2023-03-31 01:18:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 01:18:06,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2023-03-31 01:18:06,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:06,795 INFO L225 Difference]: With dead ends: 328 [2023-03-31 01:18:06,795 INFO L226 Difference]: Without dead ends: 181 [2023-03-31 01:18:06,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:18:06,800 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 191 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:06,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 77 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:18:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-03-31 01:18:06,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 148. [2023-03-31 01:18:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 86 states have (on average 1.244186046511628) internal successors, (107), 98 states have internal predecessors, (107), 36 states have call successors, (36), 30 states have call predecessors, (36), 25 states have return successors, (31), 26 states have call predecessors, (31), 31 states have call successors, (31) [2023-03-31 01:18:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 174 transitions. [2023-03-31 01:18:06,851 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 174 transitions. Word has length 59 [2023-03-31 01:18:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:06,851 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 174 transitions. [2023-03-31 01:18:06,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:18:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 174 transitions. [2023-03-31 01:18:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-03-31 01:18:06,853 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:06,854 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 01:18:06,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:18:06,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:06,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:06,854 INFO L85 PathProgramCache]: Analyzing trace with hash 810148793, now seen corresponding path program 1 times [2023-03-31 01:18:06,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:06,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286099611] [2023-03-31 01:18:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:06,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:18:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:18:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:18:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:06,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:06,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286099611] [2023-03-31 01:18:06,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286099611] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:06,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:06,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:18:06,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421508343] [2023-03-31 01:18:06,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:06,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 01:18:06,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:06,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 01:18:06,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-31 01:18:06,988 INFO L87 Difference]: Start difference. First operand 148 states and 174 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:18:07,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:07,423 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2023-03-31 01:18:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:18:07,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2023-03-31 01:18:07,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:07,425 INFO L225 Difference]: With dead ends: 263 [2023-03-31 01:18:07,425 INFO L226 Difference]: Without dead ends: 171 [2023-03-31 01:18:07,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:18:07,427 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 213 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:07,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 60 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:18:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-03-31 01:18:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 139. [2023-03-31 01:18:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 80 states have (on average 1.25) internal successors, (100), 92 states have internal predecessors, (100), 33 states have call successors, (33), 29 states have call predecessors, (33), 25 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2023-03-31 01:18:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 162 transitions. [2023-03-31 01:18:07,447 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 162 transitions. Word has length 60 [2023-03-31 01:18:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:07,447 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 162 transitions. [2023-03-31 01:18:07,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:18:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 162 transitions. [2023-03-31 01:18:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-03-31 01:18:07,449 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:07,449 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 01:18:07,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:18:07,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:07,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -18668784, now seen corresponding path program 1 times [2023-03-31 01:18:07,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:07,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364827682] [2023-03-31 01:18:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:18:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 01:18:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:07,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364827682] [2023-03-31 01:18:07,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364827682] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:07,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:07,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:18:07,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661422291] [2023-03-31 01:18:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:07,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:18:07,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:07,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:18:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:18:07,640 INFO L87 Difference]: Start difference. First operand 139 states and 162 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:18:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:08,567 INFO L93 Difference]: Finished difference Result 466 states and 577 transitions. [2023-03-31 01:18:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:18:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 65 [2023-03-31 01:18:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:08,570 INFO L225 Difference]: With dead ends: 466 [2023-03-31 01:18:08,570 INFO L226 Difference]: Without dead ends: 355 [2023-03-31 01:18:08,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:18:08,572 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 383 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:08,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 163 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:18:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-03-31 01:18:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 294. [2023-03-31 01:18:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 176 states have (on average 1.2897727272727273) internal successors, (227), 199 states have internal predecessors, (227), 66 states have call successors, (66), 57 states have call predecessors, (66), 51 states have return successors, (63), 50 states have call predecessors, (63), 62 states have call successors, (63) [2023-03-31 01:18:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 356 transitions. [2023-03-31 01:18:08,612 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 356 transitions. Word has length 65 [2023-03-31 01:18:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:08,612 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 356 transitions. [2023-03-31 01:18:08,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:18:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 356 transitions. [2023-03-31 01:18:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-03-31 01:18:08,614 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:08,614 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 01:18:08,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:18:08,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:08,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:08,615 INFO L85 PathProgramCache]: Analyzing trace with hash 420411409, now seen corresponding path program 1 times [2023-03-31 01:18:08,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:08,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588578604] [2023-03-31 01:18:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:18:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:18:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:18:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:18:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:18:08,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588578604] [2023-03-31 01:18:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588578604] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:08,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:08,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:18:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701804419] [2023-03-31 01:18:08,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:08,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:18:08,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:18:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:18:08,775 INFO L87 Difference]: Start difference. First operand 294 states and 356 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 01:18:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:09,598 INFO L93 Difference]: Finished difference Result 755 states and 986 transitions. [2023-03-31 01:18:09,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:18:09,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 70 [2023-03-31 01:18:09,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:09,602 INFO L225 Difference]: With dead ends: 755 [2023-03-31 01:18:09,602 INFO L226 Difference]: Without dead ends: 489 [2023-03-31 01:18:09,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:18:09,604 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 338 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:09,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 85 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:18:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-03-31 01:18:09,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 421. [2023-03-31 01:18:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 253 states have (on average 1.2371541501976284) internal successors, (313), 273 states have internal predecessors, (313), 87 states have call successors, (87), 76 states have call predecessors, (87), 80 states have return successors, (107), 86 states have call predecessors, (107), 83 states have call successors, (107) [2023-03-31 01:18:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 507 transitions. [2023-03-31 01:18:09,656 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 507 transitions. Word has length 70 [2023-03-31 01:18:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:09,656 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 507 transitions. [2023-03-31 01:18:09,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 01:18:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 507 transitions. [2023-03-31 01:18:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 01:18:09,659 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:09,659 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:09,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:18:09,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:09,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 151239491, now seen corresponding path program 1 times [2023-03-31 01:18:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:09,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802711217] [2023-03-31 01:18:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:09,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:18:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:18:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:18:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:09,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802711217] [2023-03-31 01:18:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802711217] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:09,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:09,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:18:09,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120197320] [2023-03-31 01:18:09,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:09,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:18:09,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:09,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:18:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:18:09,800 INFO L87 Difference]: Start difference. First operand 421 states and 507 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 01:18:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:10,380 INFO L93 Difference]: Finished difference Result 903 states and 1149 transitions. [2023-03-31 01:18:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:18:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2023-03-31 01:18:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:10,383 INFO L225 Difference]: With dead ends: 903 [2023-03-31 01:18:10,383 INFO L226 Difference]: Without dead ends: 510 [2023-03-31 01:18:10,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:18:10,385 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 315 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:10,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 94 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:18:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-03-31 01:18:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 434. [2023-03-31 01:18:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 263 states have (on average 1.2281368821292775) internal successors, (323), 283 states have internal predecessors, (323), 87 states have call successors, (87), 76 states have call predecessors, (87), 83 states have return successors, (111), 88 states have call predecessors, (111), 83 states have call successors, (111) [2023-03-31 01:18:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 521 transitions. [2023-03-31 01:18:10,436 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 521 transitions. Word has length 93 [2023-03-31 01:18:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:10,437 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 521 transitions. [2023-03-31 01:18:10,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 01:18:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 521 transitions. [2023-03-31 01:18:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 01:18:10,438 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:10,438 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:10,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:18:10,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:10,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 852839365, now seen corresponding path program 1 times [2023-03-31 01:18:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116416571] [2023-03-31 01:18:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:18:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:18:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:18:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:10,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:10,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116416571] [2023-03-31 01:18:10,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116416571] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:10,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:10,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:18:10,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799649159] [2023-03-31 01:18:10,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:10,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:18:10,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:10,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:18:10,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:18:10,663 INFO L87 Difference]: Start difference. First operand 434 states and 521 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 01:18:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:11,334 INFO L93 Difference]: Finished difference Result 930 states and 1198 transitions. [2023-03-31 01:18:11,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:18:11,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2023-03-31 01:18:11,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:11,338 INFO L225 Difference]: With dead ends: 930 [2023-03-31 01:18:11,338 INFO L226 Difference]: Without dead ends: 524 [2023-03-31 01:18:11,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:18:11,342 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 237 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:11,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 118 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:18:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-03-31 01:18:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 442. [2023-03-31 01:18:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 269 states have (on average 1.2230483271375465) internal successors, (329), 289 states have internal predecessors, (329), 87 states have call successors, (87), 76 states have call predecessors, (87), 85 states have return successors, (113), 90 states have call predecessors, (113), 83 states have call successors, (113) [2023-03-31 01:18:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 529 transitions. [2023-03-31 01:18:11,384 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 529 transitions. Word has length 93 [2023-03-31 01:18:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:11,386 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 529 transitions. [2023-03-31 01:18:11,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 01:18:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 529 transitions. [2023-03-31 01:18:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 01:18:11,391 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:11,391 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:11,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:18:11,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:11,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1716647034, now seen corresponding path program 1 times [2023-03-31 01:18:11,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:11,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384030547] [2023-03-31 01:18:11,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:11,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:18:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:18:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:18:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:11,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:11,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384030547] [2023-03-31 01:18:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384030547] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:11,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:11,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 01:18:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451627351] [2023-03-31 01:18:11,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:11,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 01:18:11,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 01:18:11,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:18:11,573 INFO L87 Difference]: Start difference. First operand 442 states and 529 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-03-31 01:18:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:12,240 INFO L93 Difference]: Finished difference Result 1411 states and 1828 transitions. [2023-03-31 01:18:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:18:12,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 93 [2023-03-31 01:18:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:12,244 INFO L225 Difference]: With dead ends: 1411 [2023-03-31 01:18:12,245 INFO L226 Difference]: Without dead ends: 997 [2023-03-31 01:18:12,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:18:12,246 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 437 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:12,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 111 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:18:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-03-31 01:18:12,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 919. [2023-03-31 01:18:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 574 states have (on average 1.2038327526132404) internal successors, (691), 616 states have internal predecessors, (691), 178 states have call successors, (178), 161 states have call predecessors, (178), 166 states have return successors, (246), 173 states have call predecessors, (246), 174 states have call successors, (246) [2023-03-31 01:18:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1115 transitions. [2023-03-31 01:18:12,307 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1115 transitions. Word has length 93 [2023-03-31 01:18:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:12,307 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1115 transitions. [2023-03-31 01:18:12,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-03-31 01:18:12,308 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1115 transitions. [2023-03-31 01:18:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-03-31 01:18:12,309 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:12,309 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:12,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:18:12,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:12,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1870111660, now seen corresponding path program 1 times [2023-03-31 01:18:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944414221] [2023-03-31 01:18:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-03-31 01:18:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:18:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:18:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:18:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:18:12,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:12,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944414221] [2023-03-31 01:18:12,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944414221] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:12,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:18:12,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:18:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71239523] [2023-03-31 01:18:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:12,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:18:12,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:12,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:18:12,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:18:12,545 INFO L87 Difference]: Start difference. First operand 919 states and 1115 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-03-31 01:18:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:14,225 INFO L93 Difference]: Finished difference Result 2678 states and 3509 transitions. [2023-03-31 01:18:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-03-31 01:18:14,225 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 97 [2023-03-31 01:18:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:14,235 INFO L225 Difference]: With dead ends: 2678 [2023-03-31 01:18:14,236 INFO L226 Difference]: Without dead ends: 1979 [2023-03-31 01:18:14,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=431, Invalid=1731, Unknown=0, NotChecked=0, Total=2162 [2023-03-31 01:18:14,239 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1095 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:14,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 298 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 01:18:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2023-03-31 01:18:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1606. [2023-03-31 01:18:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 999 states have (on average 1.1971971971971973) internal successors, (1196), 1069 states have internal predecessors, (1196), 310 states have call successors, (310), 274 states have call predecessors, (310), 296 states have return successors, (430), 315 states have call predecessors, (430), 306 states have call successors, (430) [2023-03-31 01:18:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1936 transitions. [2023-03-31 01:18:14,345 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1936 transitions. Word has length 97 [2023-03-31 01:18:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:14,346 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1936 transitions. [2023-03-31 01:18:14,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-03-31 01:18:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1936 transitions. [2023-03-31 01:18:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-03-31 01:18:14,348 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:14,348 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:14,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:18:14,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:14,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1646295611, now seen corresponding path program 1 times [2023-03-31 01:18:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199453770] [2023-03-31 01:18:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:18:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-03-31 01:18:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-03-31 01:18:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-03-31 01:18:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-03-31 01:18:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 01:18:14,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:14,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199453770] [2023-03-31 01:18:14,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199453770] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:14,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356274504] [2023-03-31 01:18:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:14,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:14,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:14,637 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) [2023-03-31 01:18:14,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:18:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:14,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 8 conjunts are in the unsatisfiable core [2023-03-31 01:18:14,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:18:14,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:18:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 01:18:15,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356274504] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:18:15,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:18:15,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-03-31 01:18:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037385135] [2023-03-31 01:18:15,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:18:15,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-03-31 01:18:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:15,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-03-31 01:18:15,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:18:15,288 INFO L87 Difference]: Start difference. First operand 1606 states and 1936 transitions. Second operand has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 14 states have internal predecessors, (157), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) [2023-03-31 01:18:18,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:18,125 INFO L93 Difference]: Finished difference Result 3539 states and 4411 transitions. [2023-03-31 01:18:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-03-31 01:18:18,126 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 14 states have internal predecessors, (157), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) Word has length 159 [2023-03-31 01:18:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:18,134 INFO L225 Difference]: With dead ends: 3539 [2023-03-31 01:18:18,135 INFO L226 Difference]: Without dead ends: 2141 [2023-03-31 01:18:18,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 376 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=5034, Unknown=0, NotChecked=0, Total=6162 [2023-03-31 01:18:18,143 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 769 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 3211 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 3211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:18,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1025 Invalid, 3709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 3211 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-03-31 01:18:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2023-03-31 01:18:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 1897. [2023-03-31 01:18:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1180 states have (on average 1.1864406779661016) internal successors, (1400), 1280 states have internal predecessors, (1400), 373 states have call successors, (373), 341 states have call predecessors, (373), 343 states have return successors, (467), 345 states have call predecessors, (467), 369 states have call successors, (467) [2023-03-31 01:18:18,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2240 transitions. [2023-03-31 01:18:18,322 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2240 transitions. Word has length 159 [2023-03-31 01:18:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:18,323 INFO L495 AbstractCegarLoop]: Abstraction has 1897 states and 2240 transitions. [2023-03-31 01:18:18,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 14 states have internal predecessors, (157), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) [2023-03-31 01:18:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2240 transitions. [2023-03-31 01:18:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-03-31 01:18:18,328 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:18,328 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:18,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 01:18:18,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:18,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:18,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2116942789, now seen corresponding path program 1 times [2023-03-31 01:18:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556494250] [2023-03-31 01:18:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:18:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:18:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-03-31 01:18:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:18:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-03-31 01:18:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-03-31 01:18:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-03-31 01:18:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-03-31 01:18:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-03-31 01:18:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-03-31 01:18:18,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:18,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556494250] [2023-03-31 01:18:18,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556494250] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:18,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519411283] [2023-03-31 01:18:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:18,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:18,801 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) [2023-03-31 01:18:18,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 01:18:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:18,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 22 conjunts are in the unsatisfiable core [2023-03-31 01:18:18,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 205 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-03-31 01:18:19,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:18:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 79 proven. 33 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-03-31 01:18:19,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519411283] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:18:19,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:18:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 13] total 29 [2023-03-31 01:18:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464944127] [2023-03-31 01:18:19,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:18:19,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-03-31 01:18:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:19,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-03-31 01:18:19,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:18:19,947 INFO L87 Difference]: Start difference. First operand 1897 states and 2240 transitions. Second operand has 29 states, 28 states have (on average 7.321428571428571) internal successors, (205), 20 states have internal predecessors, (205), 10 states have call successors, (91), 11 states have call predecessors, (91), 15 states have return successors, (83), 13 states have call predecessors, (83), 10 states have call successors, (83) [2023-03-31 01:18:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:22,697 INFO L93 Difference]: Finished difference Result 4872 states and 6592 transitions. [2023-03-31 01:18:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-03-31 01:18:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 7.321428571428571) internal successors, (205), 20 states have internal predecessors, (205), 10 states have call successors, (91), 11 states have call predecessors, (91), 15 states have return successors, (83), 13 states have call predecessors, (83), 10 states have call successors, (83) Word has length 281 [2023-03-31 01:18:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:22,709 INFO L225 Difference]: With dead ends: 4872 [2023-03-31 01:18:22,709 INFO L226 Difference]: Without dead ends: 3026 [2023-03-31 01:18:22,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 655 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=981, Invalid=3711, Unknown=0, NotChecked=0, Total=4692 [2023-03-31 01:18:22,714 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 992 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:22,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1005 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-03-31 01:18:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2023-03-31 01:18:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 2117. [2023-03-31 01:18:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1324 states have (on average 1.1714501510574018) internal successors, (1551), 1427 states have internal predecessors, (1551), 418 states have call successors, (418), 384 states have call predecessors, (418), 374 states have return successors, (516), 378 states have call predecessors, (516), 414 states have call successors, (516) [2023-03-31 01:18:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2485 transitions. [2023-03-31 01:18:22,922 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2485 transitions. Word has length 281 [2023-03-31 01:18:22,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:22,922 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2485 transitions. [2023-03-31 01:18:22,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 7.321428571428571) internal successors, (205), 20 states have internal predecessors, (205), 10 states have call successors, (91), 11 states have call predecessors, (91), 15 states have return successors, (83), 13 states have call predecessors, (83), 10 states have call successors, (83) [2023-03-31 01:18:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2485 transitions. [2023-03-31 01:18:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-03-31 01:18:22,927 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:22,928 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:22,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 01:18:23,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 01:18:23,134 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:23,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1770745389, now seen corresponding path program 1 times [2023-03-31 01:18:23,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414430151] [2023-03-31 01:18:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:23,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:18:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:18:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-03-31 01:18:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:18:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-03-31 01:18:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-03-31 01:18:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-03-31 01:18:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-03-31 01:18:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-03-31 01:18:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 94 proven. 40 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-03-31 01:18:23,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:23,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414430151] [2023-03-31 01:18:23,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414430151] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:23,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157560392] [2023-03-31 01:18:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:23,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:23,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:23,506 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) [2023-03-31 01:18:23,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 01:18:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:23,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-31 01:18:23,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 240 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-03-31 01:18:23,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:18:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 98 proven. 53 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-03-31 01:18:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157560392] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:18:24,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:18:24,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 27 [2023-03-31 01:18:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329860463] [2023-03-31 01:18:24,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:18:24,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-03-31 01:18:24,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:24,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-03-31 01:18:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:18:24,472 INFO L87 Difference]: Start difference. First operand 2117 states and 2485 transitions. Second operand has 27 states, 26 states have (on average 8.538461538461538) internal successors, (222), 18 states have internal predecessors, (222), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) [2023-03-31 01:18:25,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:25,978 INFO L93 Difference]: Finished difference Result 4071 states and 4864 transitions. [2023-03-31 01:18:25,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-03-31 01:18:25,979 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 8.538461538461538) internal successors, (222), 18 states have internal predecessors, (222), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) Word has length 293 [2023-03-31 01:18:25,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:25,986 INFO L225 Difference]: With dead ends: 4071 [2023-03-31 01:18:25,986 INFO L226 Difference]: Without dead ends: 2185 [2023-03-31 01:18:25,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 686 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=498, Invalid=2154, Unknown=0, NotChecked=0, Total=2652 [2023-03-31 01:18:25,990 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 660 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:25,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 468 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:18:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2023-03-31 01:18:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2119. [2023-03-31 01:18:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 1325 states have (on average 1.1667924528301887) internal successors, (1546), 1429 states have internal predecessors, (1546), 418 states have call successors, (418), 384 states have call predecessors, (418), 375 states have return successors, (517), 378 states have call predecessors, (517), 414 states have call successors, (517) [2023-03-31 01:18:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2481 transitions. [2023-03-31 01:18:26,171 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2481 transitions. Word has length 293 [2023-03-31 01:18:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:26,171 INFO L495 AbstractCegarLoop]: Abstraction has 2119 states and 2481 transitions. [2023-03-31 01:18:26,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 8.538461538461538) internal successors, (222), 18 states have internal predecessors, (222), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) [2023-03-31 01:18:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2481 transitions. [2023-03-31 01:18:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-03-31 01:18:26,176 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:26,176 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:26,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 01:18:26,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:26,383 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:26,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:26,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1145322389, now seen corresponding path program 1 times [2023-03-31 01:18:26,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:26,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827487043] [2023-03-31 01:18:26,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:26,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:18:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:18:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-03-31 01:18:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:18:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:18:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-03-31 01:18:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-03-31 01:18:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-03-31 01:18:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-03-31 01:18:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 97 proven. 45 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-03-31 01:18:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827487043] [2023-03-31 01:18:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827487043] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21899418] [2023-03-31 01:18:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:26,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:26,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:26,897 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) [2023-03-31 01:18:26,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 01:18:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:27,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 28 conjunts are in the unsatisfiable core [2023-03-31 01:18:27,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 166 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-03-31 01:18:27,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:18:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 98 proven. 27 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-03-31 01:18:27,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21899418] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:18:27,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:18:27,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 13] total 26 [2023-03-31 01:18:27,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36095024] [2023-03-31 01:18:27,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:18:27,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-03-31 01:18:27,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-03-31 01:18:27,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2023-03-31 01:18:27,721 INFO L87 Difference]: Start difference. First operand 2119 states and 2481 transitions. Second operand has 26 states, 25 states have (on average 8.32) internal successors, (208), 20 states have internal predecessors, (208), 17 states have call successors, (96), 12 states have call predecessors, (96), 15 states have return successors, (85), 16 states have call predecessors, (85), 17 states have call successors, (85) [2023-03-31 01:18:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:29,921 INFO L93 Difference]: Finished difference Result 4905 states and 6395 transitions. [2023-03-31 01:18:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-03-31 01:18:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.32) internal successors, (208), 20 states have internal predecessors, (208), 17 states have call successors, (96), 12 states have call predecessors, (96), 15 states have return successors, (85), 16 states have call predecessors, (85), 17 states have call successors, (85) Word has length 294 [2023-03-31 01:18:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:29,935 INFO L225 Difference]: With dead ends: 4905 [2023-03-31 01:18:29,935 INFO L226 Difference]: Without dead ends: 3773 [2023-03-31 01:18:29,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 698 SyntacticMatches, 11 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1404 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1189, Invalid=3781, Unknown=0, NotChecked=0, Total=4970 [2023-03-31 01:18:29,940 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 1557 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 1205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 3965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:29,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 556 Invalid, 3965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-03-31 01:18:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2023-03-31 01:18:30,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 2759. [2023-03-31 01:18:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 1726 states have (on average 1.1697566628041716) internal successors, (2019), 1859 states have internal predecessors, (2019), 548 states have call successors, (548), 504 states have call predecessors, (548), 484 states have return successors, (665), 490 states have call predecessors, (665), 544 states have call successors, (665) [2023-03-31 01:18:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3232 transitions. [2023-03-31 01:18:30,191 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3232 transitions. Word has length 294 [2023-03-31 01:18:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:30,192 INFO L495 AbstractCegarLoop]: Abstraction has 2759 states and 3232 transitions. [2023-03-31 01:18:30,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.32) internal successors, (208), 20 states have internal predecessors, (208), 17 states have call successors, (96), 12 states have call predecessors, (96), 15 states have return successors, (85), 16 states have call predecessors, (85), 17 states have call successors, (85) [2023-03-31 01:18:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3232 transitions. [2023-03-31 01:18:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-03-31 01:18:30,199 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:30,199 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2023-03-31 01:18:30,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-03-31 01:18:30,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:30,404 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:30,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1643307392, now seen corresponding path program 1 times [2023-03-31 01:18:30,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:30,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384615668] [2023-03-31 01:18:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:30,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:18:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:18:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-03-31 01:18:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:18:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:18:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-03-31 01:18:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-03-31 01:18:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-03-31 01:18:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-03-31 01:18:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-03-31 01:18:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-03-31 01:18:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-03-31 01:18:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 94 proven. 4 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2023-03-31 01:18:30,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:30,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384615668] [2023-03-31 01:18:30,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384615668] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:30,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410015511] [2023-03-31 01:18:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:30,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:30,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:30,560 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) [2023-03-31 01:18:30,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 01:18:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:30,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 01:18:30,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-03-31 01:18:30,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:18:30,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410015511] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:18:30,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:18:30,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2023-03-31 01:18:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340661490] [2023-03-31 01:18:30,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:18:30,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 01:18:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 01:18:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:18:30,801 INFO L87 Difference]: Start difference. First operand 2759 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-03-31 01:18:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:30,963 INFO L93 Difference]: Finished difference Result 4465 states and 5242 transitions. [2023-03-31 01:18:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 01:18:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 341 [2023-03-31 01:18:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:30,970 INFO L225 Difference]: With dead ends: 4465 [2023-03-31 01:18:30,970 INFO L226 Difference]: Without dead ends: 1757 [2023-03-31 01:18:30,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:18:30,976 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 14 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:30,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 359 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 01:18:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2023-03-31 01:18:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1717. [2023-03-31 01:18:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1064 states have (on average 1.1588345864661653) internal successors, (1233), 1159 states have internal predecessors, (1233), 348 states have call successors, (348), 322 states have call predecessors, (348), 304 states have return successors, (394), 304 states have call predecessors, (394), 344 states have call successors, (394) [2023-03-31 01:18:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 1975 transitions. [2023-03-31 01:18:31,135 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 1975 transitions. Word has length 341 [2023-03-31 01:18:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:31,135 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 1975 transitions. [2023-03-31 01:18:31,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-03-31 01:18:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 1975 transitions. [2023-03-31 01:18:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-03-31 01:18:31,138 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:18:31,138 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-03-31 01:18:31,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 01:18:31,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-03-31 01:18:31,344 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:18:31,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:18:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1867535743, now seen corresponding path program 1 times [2023-03-31 01:18:31,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:18:31,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631610038] [2023-03-31 01:18:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:31,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:18:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:18:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:18:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:18:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:18:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:18:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:18:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:18:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:18:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:18:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-03-31 01:18:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:18:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:18:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:18:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:18:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:18:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-03-31 01:18:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-03-31 01:18:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:18:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:18:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-03-31 01:18:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-03-31 01:18:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-03-31 01:18:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:18:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-03-31 01:18:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:18:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:18:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:18:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-03-31 01:18:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-03-31 01:18:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 150 proven. 50 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-03-31 01:18:32,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:18:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631610038] [2023-03-31 01:18:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631610038] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:18:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272597749] [2023-03-31 01:18:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:18:32,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:32,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:18:32,173 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) [2023-03-31 01:18:32,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-31 01:18:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:18:32,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 42 conjunts are in the unsatisfiable core [2023-03-31 01:18:32,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:18:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 193 proven. 46 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-03-31 01:18:32,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:18:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 111 proven. 71 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2023-03-31 01:18:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272597749] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:18:33,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:18:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 12, 17] total 40 [2023-03-31 01:18:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856391467] [2023-03-31 01:18:33,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:18:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-03-31 01:18:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:18:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-03-31 01:18:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:18:33,537 INFO L87 Difference]: Start difference. First operand 1717 states and 1975 transitions. Second operand has 40 states, 38 states have (on average 6.7631578947368425) internal successors, (257), 29 states have internal predecessors, (257), 20 states have call successors, (107), 16 states have call predecessors, (107), 23 states have return successors, (106), 22 states have call predecessors, (106), 20 states have call successors, (106) [2023-03-31 01:18:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:18:40,330 INFO L93 Difference]: Finished difference Result 5582 states and 7381 transitions. [2023-03-31 01:18:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-03-31 01:18:40,331 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 6.7631578947368425) internal successors, (257), 29 states have internal predecessors, (257), 20 states have call successors, (107), 16 states have call predecessors, (107), 23 states have return successors, (106), 22 states have call predecessors, (106), 20 states have call successors, (106) Word has length 344 [2023-03-31 01:18:40,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:18:40,332 INFO L225 Difference]: With dead ends: 5582 [2023-03-31 01:18:40,333 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 01:18:40,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 837 SyntacticMatches, 15 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10575 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5516, Invalid=23214, Unknown=0, NotChecked=0, Total=28730 [2023-03-31 01:18:40,349 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 2524 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 7833 mSolverCounterSat, 1898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 9731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1898 IncrementalHoareTripleChecker+Valid, 7833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:18:40,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 1739 Invalid, 9731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1898 Valid, 7833 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-03-31 01:18:40,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 01:18:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 01:18:40,349 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) [2023-03-31 01:18:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 01:18:40,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 344 [2023-03-31 01:18:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:18:40,351 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 01:18:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 6.7631578947368425) internal successors, (257), 29 states have internal predecessors, (257), 20 states have call successors, (107), 16 states have call predecessors, (107), 23 states have return successors, (106), 22 states have call predecessors, (106), 20 states have call successors, (106) [2023-03-31 01:18:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 01:18:40,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 01:18:40,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 01:18:40,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-31 01:18:40,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:18:40,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.