/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_spec2_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:52:09,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:52:09,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:52:09,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:52:09,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:52:09,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:52:09,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:52:09,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:52:09,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:52:09,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:52:09,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:52:09,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:52:09,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:52:09,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:52:09,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:52:09,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:52:09,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:52:09,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:52:09,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:52:09,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:52:09,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:52:09,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:52:09,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:52:09,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:52:09,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:52:09,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:52:09,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:52:09,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:52:09,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:52:09,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:52:09,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:52:09,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:52:09,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:52:09,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:52:09,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:52:09,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:52:09,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:52:09,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:52:09,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:52:09,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:52:09,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:52:09,303 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 00:52:09,334 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:52:09,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:52:09,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:52:09,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:52:09,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:52:09,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:52:09,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:52:09,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:52:09,337 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:52:09,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:52:09,338 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:52:09,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:52:09,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:52:09,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:52:09,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:52:09,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:52:09,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:52:09,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:52:09,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:52:09,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:52:09,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:52:09,342 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:52:09,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:52:09,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:52:09,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:52:09,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:52:09,614 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:52:09,615 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:52:09,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2023-03-31 00:52:10,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:52:10,985 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:52:10,985 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2023-03-31 00:52:11,006 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e82b0a811/68405c7846884586b69096f4d0c66f84/FLAGf012fd116 [2023-03-31 00:52:11,021 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e82b0a811/68405c7846884586b69096f4d0c66f84 [2023-03-31 00:52:11,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:52:11,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:52:11,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:52:11,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:52:11,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:52:11,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b6ca1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11, skipping insertion in model container [2023-03-31 00:52:11,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:52:11,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:52:11,607 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_spec2_product26.cil.c[70298,70311] [2023-03-31 00:52:11,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:52:11,632 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:52:11,746 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_spec2_product26.cil.c[70298,70311] [2023-03-31 00:52:11,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:52:11,783 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:52:11,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11 WrapperNode [2023-03-31 00:52:11,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:52:11,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:52:11,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:52:11,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:52:11,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:52:11,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:52:11,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:52:11,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:52:11,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (1/1) ... [2023-03-31 00:52:11,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:52:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:52:12,010 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 00:52:12,036 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 00:52:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:52:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:52:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:52:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:52:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:52:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:52:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__empty [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:52:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:52:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:52:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:52:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:52:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:52:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:52:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:52:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:52:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:52:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:52:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:52:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:52:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:52:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:52:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:52:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:52:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:52:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:52:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:52:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:52:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:52:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:52:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:52:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:52:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:52:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:52:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:52:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:52:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:52:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:52:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-03-31 00:52:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-03-31 00:52:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2023-03-31 00:52:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__empty [2023-03-31 00:52:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:52:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:52:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:52:12,378 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:52:12,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:52:13,548 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:52:13,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:52:13,600 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:52:13,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:52:13 BoogieIcfgContainer [2023-03-31 00:52:13,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:52:13,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:52:13,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:52:13,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:52:13,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:52:11" (1/3) ... [2023-03-31 00:52:13,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c6e40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:52:13, skipping insertion in model container [2023-03-31 00:52:13,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:11" (2/3) ... [2023-03-31 00:52:13,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c6e40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:52:13, skipping insertion in model container [2023-03-31 00:52:13,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:52:13" (3/3) ... [2023-03-31 00:52:13,614 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.c [2023-03-31 00:52:13,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:52:13,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:52:13,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:52:13,707 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;@68579339, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:52:13,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:52:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 774 states, 538 states have (on average 1.6394052044609666) internal successors, (882), 567 states have internal predecessors, (882), 172 states have call successors, (172), 51 states have call predecessors, (172), 51 states have return successors, (172), 162 states have call predecessors, (172), 172 states have call successors, (172) [2023-03-31 00:52:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-03-31 00:52:13,729 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:13,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:13,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:13,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1678736961, now seen corresponding path program 1 times [2023-03-31 00:52:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:13,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984713488] [2023-03-31 00:52:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:13,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:52:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:52:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984713488] [2023-03-31 00:52:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984713488] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:15,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:15,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:15,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534164793] [2023-03-31 00:52:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:15,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:15,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:15,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:15,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:15,330 INFO L87 Difference]: Start difference. First operand has 774 states, 538 states have (on average 1.6394052044609666) internal successors, (882), 567 states have internal predecessors, (882), 172 states have call successors, (172), 51 states have call predecessors, (172), 51 states have return successors, (172), 162 states have call predecessors, (172), 172 states have call successors, (172) Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:25,230 INFO L93 Difference]: Finished difference Result 1648 states and 2874 transitions. [2023-03-31 00:52:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 85 [2023-03-31 00:52:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:25,259 INFO L225 Difference]: With dead ends: 1648 [2023-03-31 00:52:25,259 INFO L226 Difference]: Without dead ends: 1045 [2023-03-31 00:52:25,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:25,271 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1143 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 4557 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 4955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 4557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:25,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 743 Invalid, 4955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [398 Valid, 4557 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-03-31 00:52:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-03-31 00:52:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2023-03-31 00:52:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.6726057906458798) internal successors, (751), 470 states have internal predecessors, (751), 115 states have call successors, (115), 46 states have call predecessors, (115), 42 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:52:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 973 transitions. [2023-03-31 00:52:25,579 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 973 transitions. Word has length 85 [2023-03-31 00:52:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:25,579 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 973 transitions. [2023-03-31 00:52:25,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 973 transitions. [2023-03-31 00:52:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 00:52:25,590 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:25,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:25,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:52:25,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:25,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1507517321, now seen corresponding path program 1 times [2023-03-31 00:52:25,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:25,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122771002] [2023-03-31 00:52:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:26,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122771002] [2023-03-31 00:52:26,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122771002] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:26,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:26,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001981921] [2023-03-31 00:52:26,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:26,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:26,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:26,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:26,467 INFO L87 Difference]: Start difference. First operand 607 states and 973 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:34,092 INFO L93 Difference]: Finished difference Result 1615 states and 2806 transitions. [2023-03-31 00:52:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:34,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 88 [2023-03-31 00:52:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:34,101 INFO L225 Difference]: With dead ends: 1615 [2023-03-31 00:52:34,101 INFO L226 Difference]: Without dead ends: 1045 [2023-03-31 00:52:34,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:34,105 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1837 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3951 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 4653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 3951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:34,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 618 Invalid, 4653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 3951 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-03-31 00:52:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-03-31 00:52:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2023-03-31 00:52:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.670378619153675) internal successors, (750), 470 states have internal predecessors, (750), 115 states have call successors, (115), 46 states have call predecessors, (115), 42 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:52:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 972 transitions. [2023-03-31 00:52:34,269 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 972 transitions. Word has length 88 [2023-03-31 00:52:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:34,269 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 972 transitions. [2023-03-31 00:52:34,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 972 transitions. [2023-03-31 00:52:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 00:52:34,273 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:34,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:34,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:52:34,274 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:34,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:34,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1791827632, now seen corresponding path program 1 times [2023-03-31 00:52:34,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:34,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618357865] [2023-03-31 00:52:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:52:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:35,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:35,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618357865] [2023-03-31 00:52:35,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618357865] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:35,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634194443] [2023-03-31 00:52:35,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:35,148 INFO L87 Difference]: Start difference. First operand 607 states and 972 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:42,190 INFO L93 Difference]: Finished difference Result 1615 states and 2805 transitions. [2023-03-31 00:52:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:42,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-03-31 00:52:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:42,199 INFO L225 Difference]: With dead ends: 1615 [2023-03-31 00:52:42,199 INFO L226 Difference]: Without dead ends: 1045 [2023-03-31 00:52:42,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:42,203 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 2254 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 3788 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 4658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 3788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:42,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 691 Invalid, 4658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [870 Valid, 3788 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-03-31 00:52:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-03-31 00:52:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2023-03-31 00:52:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.6681514476614698) internal successors, (749), 470 states have internal predecessors, (749), 115 states have call successors, (115), 46 states have call predecessors, (115), 42 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:52:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 971 transitions. [2023-03-31 00:52:42,347 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 971 transitions. Word has length 89 [2023-03-31 00:52:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:42,347 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 971 transitions. [2023-03-31 00:52:42,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 971 transitions. [2023-03-31 00:52:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 00:52:42,349 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:42,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:42,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:52:42,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:42,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1934163181, now seen corresponding path program 1 times [2023-03-31 00:52:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113406258] [2023-03-31 00:52:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:42,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:52:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 00:52:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113406258] [2023-03-31 00:52:43,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113406258] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:43,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:43,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:43,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015196353] [2023-03-31 00:52:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:43,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:43,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:43,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:43,121 INFO L87 Difference]: Start difference. First operand 607 states and 971 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:49,720 INFO L93 Difference]: Finished difference Result 1615 states and 2804 transitions. [2023-03-31 00:52:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:49,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 90 [2023-03-31 00:52:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:49,728 INFO L225 Difference]: With dead ends: 1615 [2023-03-31 00:52:49,728 INFO L226 Difference]: Without dead ends: 1045 [2023-03-31 00:52:49,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:49,732 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 3497 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 3707 mSolverCounterSat, 1289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3632 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 4996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1289 IncrementalHoareTripleChecker+Valid, 3707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:49,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3632 Valid, 664 Invalid, 4996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1289 Valid, 3707 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-03-31 00:52:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-03-31 00:52:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2023-03-31 00:52:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.665924276169265) internal successors, (748), 470 states have internal predecessors, (748), 115 states have call successors, (115), 46 states have call predecessors, (115), 42 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:52:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 970 transitions. [2023-03-31 00:52:49,875 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 970 transitions. Word has length 90 [2023-03-31 00:52:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:49,875 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 970 transitions. [2023-03-31 00:52:49,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 970 transitions. [2023-03-31 00:52:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 00:52:49,885 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:49,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:49,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:52:49,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:49,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:49,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1970248404, now seen corresponding path program 1 times [2023-03-31 00:52:49,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:49,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56324919] [2023-03-31 00:52:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:49,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:52:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 00:52:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:50,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56324919] [2023-03-31 00:52:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56324919] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219306214] [2023-03-31 00:52:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:50,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:50,637 INFO L87 Difference]: Start difference. First operand 607 states and 970 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:57,180 INFO L93 Difference]: Finished difference Result 1615 states and 2803 transitions. [2023-03-31 00:52:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:57,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 91 [2023-03-31 00:52:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:57,188 INFO L225 Difference]: With dead ends: 1615 [2023-03-31 00:52:57,188 INFO L226 Difference]: Without dead ends: 1045 [2023-03-31 00:52:57,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:57,191 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1670 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 4048 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 4658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 4048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:57,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 677 Invalid, 4658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 4048 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-03-31 00:52:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-03-31 00:52:57,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2023-03-31 00:52:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.6636971046770601) internal successors, (747), 470 states have internal predecessors, (747), 115 states have call successors, (115), 46 states have call predecessors, (115), 42 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2023-03-31 00:52:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 969 transitions. [2023-03-31 00:52:57,352 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 969 transitions. Word has length 91 [2023-03-31 00:52:57,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:57,352 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 969 transitions. [2023-03-31 00:52:57,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 969 transitions. [2023-03-31 00:52:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 00:52:57,354 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:57,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:57,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:52:57,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:57,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:57,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1287426479, now seen corresponding path program 1 times [2023-03-31 00:52:57,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406862721] [2023-03-31 00:52:57,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:57,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:58,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:58,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406862721] [2023-03-31 00:52:58,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406862721] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:58,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:58,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 00:52:58,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768778242] [2023-03-31 00:52:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:58,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 00:52:58,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:58,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 00:52:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:52:58,370 INFO L87 Difference]: Start difference. First operand 607 states and 969 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16)