/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/elevator_spec14_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:48:49,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:48:49,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:48:49,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:48:49,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:48:49,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:48:49,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:48:49,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:48:49,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:48:49,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:48:49,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:48:49,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:48:49,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:48:49,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:48:49,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:48:49,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:48:49,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:48:49,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:48:49,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:48:49,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:48:49,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:48:49,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:48:49,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:48:49,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:48:49,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:48:49,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:48:49,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:48:49,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:48:49,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:48:49,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:48:49,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:48:49,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:48:49,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:48:49,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:48:49,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:48:49,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:48:49,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:48:49,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:48:49,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:48:49,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:48:49,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:48:49,463 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 00:48:49,484 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:48:49,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:48:49,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:48:49,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:48:49,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:48:49,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:48:49,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:48:49,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:48:49,485 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:48:49,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:48:49,485 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:48:49,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:48:49,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:48:49,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:48:49,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:48:49,487 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:48:49,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:48:49,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:48:49,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:48:49,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:48:49,686 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:48:49,687 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:48:49,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2023-03-31 00:48:50,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:48:50,918 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:48:50,919 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2023-03-31 00:48:50,929 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ad160c7/d74b8aeea1a94697883793a6c605b5d4/FLAG640580d87 [2023-03-31 00:48:50,938 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ad160c7/d74b8aeea1a94697883793a6c605b5d4 [2023-03-31 00:48:50,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:48:50,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:48:50,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:48:50,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:48:50,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:48:50,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:48:50" (1/1) ... [2023-03-31 00:48:50,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa8c306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:50, skipping insertion in model container [2023-03-31 00:48:50,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:48:50" (1/1) ... [2023-03-31 00:48:50,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:48:51,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:48:51,372 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/elevator_spec14_product03.cil.c[68958,68971] [2023-03-31 00:48:51,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:48:51,383 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:48:51,470 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/elevator_spec14_product03.cil.c[68958,68971] [2023-03-31 00:48:51,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:48:51,492 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:48:51,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51 WrapperNode [2023-03-31 00:48:51,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:48:51,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:48:51,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:48:51,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:48:51,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:48:51,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:48:51,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:48:51,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:48:51,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (1/1) ... [2023-03-31 00:48:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:48:51,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:48:51,619 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 00:48:51,630 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 00:48:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:48:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:48:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:48:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:48:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:48:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:48:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:48:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:48:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:48:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:48:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:48:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:48:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:48:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:48:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-03-31 00:48:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-03-31 00:48:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:48:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:48:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-03-31 00:48:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:48:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:48:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:48:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:48:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:48:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:48:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:48:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:48:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:48:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:48:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:48:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:48:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:48:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:48:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:48:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:48:51,892 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:48:51,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:48:53,084 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:48:53,107 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:48:53,107 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:48:53,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:48:53 BoogieIcfgContainer [2023-03-31 00:48:53,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:48:53,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:48:53,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:48:53,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:48:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:48:50" (1/3) ... [2023-03-31 00:48:53,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a629be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:48:53, skipping insertion in model container [2023-03-31 00:48:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:48:51" (2/3) ... [2023-03-31 00:48:53,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a629be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:48:53, skipping insertion in model container [2023-03-31 00:48:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:48:53" (3/3) ... [2023-03-31 00:48:53,115 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2023-03-31 00:48:53,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:48:53,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:48:53,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:48:53,186 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;@4cd20c8f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:48:53,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:48:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 714 states, 493 states have (on average 1.6267748478701824) internal successors, (802), 516 states have internal predecessors, (802), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 158 states have call predecessors, (163), 163 states have call successors, (163) [2023-03-31 00:48:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-03-31 00:48:53,215 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:48:53,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:53,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:48:53,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:48:53,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1823423068, now seen corresponding path program 1 times [2023-03-31 00:48:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:48:53,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688532554] [2023-03-31 00:48:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:48:53,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:48:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:48:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:48:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:48:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:48:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:48:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:48:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:48:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:48:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 00:48:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:48:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 00:48:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:48:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 00:48:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-03-31 00:48:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:48:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-03-31 00:48:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 00:48:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 00:48:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:48:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:48:54,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:48:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688532554] [2023-03-31 00:48:54,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688532554] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:48:54,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:48:54,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:48:54,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181937376] [2023-03-31 00:48:54,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:48:54,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:48:54,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:48:54,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:48:54,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:48:54,156 INFO L87 Difference]: Start difference. First operand has 714 states, 493 states have (on average 1.6267748478701824) internal successors, (802), 516 states have internal predecessors, (802), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 158 states have call predecessors, (163), 163 states have call successors, (163) Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:00,124 INFO L93 Difference]: Finished difference Result 1454 states and 2546 transitions. [2023-03-31 00:49:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 00:49:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2023-03-31 00:49:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:00,144 INFO L225 Difference]: With dead ends: 1454 [2023-03-31 00:49:00,144 INFO L226 Difference]: Without dead ends: 846 [2023-03-31 00:49:00,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:00,155 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 2100 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2198 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 4533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:00,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2198 Valid, 456 Invalid, 4533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [753 Valid, 3780 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-03-31 00:49:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-03-31 00:49:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2023-03-31 00:49:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 414 states have (on average 1.644927536231884) internal successors, (681), 429 states have internal predecessors, (681), 112 states have call successors, (112), 44 states have call predecessors, (112), 39 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:49:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 900 transitions. [2023-03-31 00:49:00,334 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 900 transitions. Word has length 135 [2023-03-31 00:49:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:00,334 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 900 transitions. [2023-03-31 00:49:00,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 900 transitions. [2023-03-31 00:49:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-03-31 00:49:00,346 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:00,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:00,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:49:00,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:00,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -706057699, now seen corresponding path program 1 times [2023-03-31 00:49:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:00,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000120393] [2023-03-31 00:49:00,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:49:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 00:49:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 00:49:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 00:49:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 00:49:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 00:49:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-03-31 00:49:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-03-31 00:49:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:00,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:00,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000120393] [2023-03-31 00:49:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000120393] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:49:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132329030] [2023-03-31 00:49:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:00,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:49:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:00,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:49:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:49:00,845 INFO L87 Difference]: Start difference. First operand 566 states and 900 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:06,056 INFO L93 Difference]: Finished difference Result 1379 states and 2358 transitions. [2023-03-31 00:49:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:49:06,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2023-03-31 00:49:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:06,062 INFO L225 Difference]: With dead ends: 1379 [2023-03-31 00:49:06,062 INFO L226 Difference]: Without dead ends: 846 [2023-03-31 00:49:06,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:06,064 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 2637 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 3615 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 4568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 3615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:06,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 383 Invalid, 4568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 3615 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-03-31 00:49:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-03-31 00:49:06,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2023-03-31 00:49:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 414 states have (on average 1.642512077294686) internal successors, (680), 429 states have internal predecessors, (680), 112 states have call successors, (112), 44 states have call predecessors, (112), 39 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:49:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 899 transitions. [2023-03-31 00:49:06,191 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 899 transitions. Word has length 136 [2023-03-31 00:49:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:06,192 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 899 transitions. [2023-03-31 00:49:06,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 899 transitions. [2023-03-31 00:49:06,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-03-31 00:49:06,194 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:06,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:06,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:49:06,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:06,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:06,195 INFO L85 PathProgramCache]: Analyzing trace with hash -78833088, now seen corresponding path program 1 times [2023-03-31 00:49:06,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:06,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100924018] [2023-03-31 00:49:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:49:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 00:49:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 00:49:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 00:49:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 00:49:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-03-31 00:49:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-03-31 00:49:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:06,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:06,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100924018] [2023-03-31 00:49:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100924018] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:06,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:06,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:49:06,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091115240] [2023-03-31 00:49:06,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:06,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:49:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:06,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:49:06,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:49:06,606 INFO L87 Difference]: Start difference. First operand 566 states and 899 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:11,687 INFO L93 Difference]: Finished difference Result 1379 states and 2357 transitions. [2023-03-31 00:49:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:49:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2023-03-31 00:49:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:11,693 INFO L225 Difference]: With dead ends: 1379 [2023-03-31 00:49:11,693 INFO L226 Difference]: Without dead ends: 846 [2023-03-31 00:49:11,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:11,700 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2634 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 3643 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 4598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 3643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:11,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 382 Invalid, 4598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 3643 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-03-31 00:49:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-03-31 00:49:11,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2023-03-31 00:49:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 414 states have (on average 1.6400966183574879) internal successors, (679), 429 states have internal predecessors, (679), 112 states have call successors, (112), 44 states have call predecessors, (112), 39 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:49:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 898 transitions. [2023-03-31 00:49:11,846 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 898 transitions. Word has length 137 [2023-03-31 00:49:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:11,846 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 898 transitions. [2023-03-31 00:49:11,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 898 transitions. [2023-03-31 00:49:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-03-31 00:49:11,848 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:11,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:11,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:49:11,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:11,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1761070087, now seen corresponding path program 1 times [2023-03-31 00:49:11,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:11,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120495404] [2023-03-31 00:49:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:11,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:49:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 00:49:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 00:49:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 00:49:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 00:49:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-03-31 00:49:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:49:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-03-31 00:49:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:12,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:12,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120495404] [2023-03-31 00:49:12,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120495404] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:12,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:12,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:49:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116707911] [2023-03-31 00:49:12,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:12,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:49:12,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:49:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:49:12,218 INFO L87 Difference]: Start difference. First operand 566 states and 898 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:17,673 INFO L93 Difference]: Finished difference Result 1379 states and 2356 transitions. [2023-03-31 00:49:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:49:17,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2023-03-31 00:49:17,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:17,678 INFO L225 Difference]: With dead ends: 1379 [2023-03-31 00:49:17,678 INFO L226 Difference]: Without dead ends: 846 [2023-03-31 00:49:17,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:17,680 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1061 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:17,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 376 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 3929 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-03-31 00:49:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-03-31 00:49:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2023-03-31 00:49:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 414 states have (on average 1.6376811594202898) internal successors, (678), 429 states have internal predecessors, (678), 112 states have call successors, (112), 44 states have call predecessors, (112), 39 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:49:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 897 transitions. [2023-03-31 00:49:17,789 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 897 transitions. Word has length 138 [2023-03-31 00:49:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:17,790 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 897 transitions. [2023-03-31 00:49:17,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 897 transitions. [2023-03-31 00:49:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-03-31 00:49:17,793 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:17,793 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:17,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:49:17,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:17,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2022172964, now seen corresponding path program 1 times [2023-03-31 00:49:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476756044] [2023-03-31 00:49:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:49:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 00:49:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-03-31 00:49:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 00:49:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-03-31 00:49:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 00:49:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-03-31 00:49:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-03-31 00:49:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476756044] [2023-03-31 00:49:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476756044] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:49:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60116932] [2023-03-31 00:49:18,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:18,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:49:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:18,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:49:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:49:18,196 INFO L87 Difference]: Start difference. First operand 566 states and 897 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:23,286 INFO L93 Difference]: Finished difference Result 1379 states and 2355 transitions. [2023-03-31 00:49:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:49:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-03-31 00:49:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:23,297 INFO L225 Difference]: With dead ends: 1379 [2023-03-31 00:49:23,297 INFO L226 Difference]: Without dead ends: 846 [2023-03-31 00:49:23,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:23,299 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 2027 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 715 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:23,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 384 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-03-31 00:49:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-03-31 00:49:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2023-03-31 00:49:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 414 states have (on average 1.6352657004830917) internal successors, (677), 429 states have internal predecessors, (677), 112 states have call successors, (112), 44 states have call predecessors, (112), 39 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:49:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 896 transitions. [2023-03-31 00:49:23,431 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 896 transitions. Word has length 139 [2023-03-31 00:49:23,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:23,432 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 896 transitions. [2023-03-31 00:49:23,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-03-31 00:49:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 896 transitions. [2023-03-31 00:49:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-03-31 00:49:23,434 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:23,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:23,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:49:23,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:23,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1177791019, now seen corresponding path program 1 times [2023-03-31 00:49:23,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:23,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465053434] [2023-03-31 00:49:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:23,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 00:49:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 00:49:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 00:49:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 00:49:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 00:49:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-03-31 00:49:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-03-31 00:49:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465053434] [2023-03-31 00:49:23,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465053434] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:23,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:23,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:49:23,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869372641] [2023-03-31 00:49:23,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:23,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:49:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:23,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:49:23,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:49:23,910 INFO L87 Difference]: Start difference. First operand 566 states and 896 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:30,455 INFO L93 Difference]: Finished difference Result 1394 states and 2388 transitions. [2023-03-31 00:49:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 00:49:30,456 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 140 [2023-03-31 00:49:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:30,460 INFO L225 Difference]: With dead ends: 1394 [2023-03-31 00:49:30,460 INFO L226 Difference]: Without dead ends: 865 [2023-03-31 00:49:30,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-03-31 00:49:30,462 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 2091 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 6831 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 7553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 6831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:30,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 791 Invalid, 7553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [722 Valid, 6831 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-03-31 00:49:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-03-31 00:49:30,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 580. [2023-03-31 00:49:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 426 states have (on average 1.6291079812206573) internal successors, (694), 441 states have internal predecessors, (694), 113 states have call successors, (113), 45 states have call predecessors, (113), 40 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2023-03-31 00:49:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 915 transitions. [2023-03-31 00:49:30,580 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 915 transitions. Word has length 140 [2023-03-31 00:49:30,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:30,580 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 915 transitions. [2023-03-31 00:49:30,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 915 transitions. [2023-03-31 00:49:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-03-31 00:49:30,582 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:30,582 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:30,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:49:30,582 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:30,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash 211003485, now seen corresponding path program 1 times [2023-03-31 00:49:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:30,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892421483] [2023-03-31 00:49:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:49:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 00:49:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 00:49:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 00:49:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-03-31 00:49:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-03-31 00:49:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 00:49:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:49:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:31,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:31,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892421483] [2023-03-31 00:49:31,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892421483] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:31,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:31,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:49:31,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418952607] [2023-03-31 00:49:31,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:31,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:49:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:49:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:49:31,061 INFO L87 Difference]: Start difference. First operand 580 states and 915 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:37,911 INFO L93 Difference]: Finished difference Result 1374 states and 2326 transitions. [2023-03-31 00:49:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:49:37,911 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 141 [2023-03-31 00:49:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:37,915 INFO L225 Difference]: With dead ends: 1374 [2023-03-31 00:49:37,916 INFO L226 Difference]: Without dead ends: 865 [2023-03-31 00:49:37,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-03-31 00:49:37,933 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 1656 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 7051 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 7584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 7051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:37,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 683 Invalid, 7584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [533 Valid, 7051 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-03-31 00:49:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-03-31 00:49:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 580. [2023-03-31 00:49:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 426 states have (on average 1.6173708920187793) internal successors, (689), 441 states have internal predecessors, (689), 113 states have call successors, (113), 45 states have call predecessors, (113), 40 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2023-03-31 00:49:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 910 transitions. [2023-03-31 00:49:38,058 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 910 transitions. Word has length 141 [2023-03-31 00:49:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:38,058 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 910 transitions. [2023-03-31 00:49:38,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 910 transitions. [2023-03-31 00:49:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-03-31 00:49:38,061 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:38,061 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:38,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 00:49:38,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:38,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:38,061 INFO L85 PathProgramCache]: Analyzing trace with hash -806412198, now seen corresponding path program 1 times [2023-03-31 00:49:38,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:38,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593077408] [2023-03-31 00:49:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:49:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 00:49:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 00:49:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 00:49:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-03-31 00:49:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-03-31 00:49:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-03-31 00:49:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 00:49:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593077408] [2023-03-31 00:49:38,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593077408] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:38,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:38,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:49:38,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735153348] [2023-03-31 00:49:38,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:38,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:49:38,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:38,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:49:38,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:49:38,543 INFO L87 Difference]: Start difference. First operand 580 states and 910 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:44,744 INFO L93 Difference]: Finished difference Result 1374 states and 2321 transitions. [2023-03-31 00:49:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:49:44,753 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 142 [2023-03-31 00:49:44,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:44,757 INFO L225 Difference]: With dead ends: 1374 [2023-03-31 00:49:44,757 INFO L226 Difference]: Without dead ends: 865 [2023-03-31 00:49:44,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-03-31 00:49:44,760 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 1531 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 6775 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 7324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 6775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:44,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 781 Invalid, 7324 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [549 Valid, 6775 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-03-31 00:49:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-03-31 00:49:44,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 580. [2023-03-31 00:49:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 426 states have (on average 1.6056338028169015) internal successors, (684), 441 states have internal predecessors, (684), 113 states have call successors, (113), 45 states have call predecessors, (113), 40 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2023-03-31 00:49:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 905 transitions. [2023-03-31 00:49:44,888 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 905 transitions. Word has length 142 [2023-03-31 00:49:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:44,889 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 905 transitions. [2023-03-31 00:49:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-03-31 00:49:44,889 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 905 transitions. [2023-03-31 00:49:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-03-31 00:49:44,891 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:44,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:44,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 00:49:44,892 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:44,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash 893067650, now seen corresponding path program 1 times [2023-03-31 00:49:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:44,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064152731] [2023-03-31 00:49:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:44,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 00:49:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 00:49:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:49:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 00:49:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-03-31 00:49:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:49:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-03-31 00:49:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-03-31 00:49:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-03-31 00:49:45,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:45,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064152731] [2023-03-31 00:49:45,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064152731] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:45,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:45,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:49:45,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529769309] [2023-03-31 00:49:45,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:45,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:49:45,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:49:45,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:49:45,332 INFO L87 Difference]: Start difference. First operand 580 states and 905 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21)