/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_spec9_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 03:10:05,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 03:10:05,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 03:10:05,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 03:10:05,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 03:10:05,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 03:10:05,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 03:10:05,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 03:10:05,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 03:10:05,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 03:10:05,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 03:10:05,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 03:10:05,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 03:10:05,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 03:10:05,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 03:10:05,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 03:10:05,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 03:10:05,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 03:10:05,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 03:10:05,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 03:10:05,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 03:10:05,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 03:10:05,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 03:10:05,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 03:10:05,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 03:10:05,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 03:10:05,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 03:10:05,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 03:10:05,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 03:10:05,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 03:10:05,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 03:10:05,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 03:10:05,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 03:10:05,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 03:10:05,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 03:10:05,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 03:10:05,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 03:10:05,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 03:10:05,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 03:10:05,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 03:10:05,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 03:10:05,192 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 [2023-04-02 03:10:05,221 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 03:10:05,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 03:10:05,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 03:10:05,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 03:10:05,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 03:10:05,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 03:10:05,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 03:10:05,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 03:10:05,223 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 03:10:05,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 03:10:05,223 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 03:10:05,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 03:10:05,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:10:05,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 03:10:05,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 03:10:05,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 03:10:05,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 03:10:05,226 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 03:10:05,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 03:10:05,226 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 03:10:05,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 03:10:05,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 03:10:05,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 03:10:05,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 03:10:05,445 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 03:10:05,446 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 03:10:05,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2023-04-02 03:10:06,544 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 03:10:06,775 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 03:10:06,775 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2023-04-02 03:10:06,811 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31835ee69/6e0d53a5429b4d92aaa39870d37534ce/FLAG1e83a6eed [2023-04-02 03:10:06,827 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31835ee69/6e0d53a5429b4d92aaa39870d37534ce [2023-04-02 03:10:06,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 03:10:06,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 03:10:06,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 03:10:06,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 03:10:06,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 03:10:06,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:10:06" (1/1) ... [2023-04-02 03:10:06,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbb9923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:06, skipping insertion in model container [2023-04-02 03:10:06,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:10:06" (1/1) ... [2023-04-02 03:10:06,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 03:10:06,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 03:10:07,277 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_spec9_product09.cil.c[70349,70362] [2023-04-02 03:10:07,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:10:07,297 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 03:10:07,387 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_spec9_product09.cil.c[70349,70362] [2023-04-02 03:10:07,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:10:07,404 INFO L208 MainTranslator]: Completed translation [2023-04-02 03:10:07,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07 WrapperNode [2023-04-02 03:10:07,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 03:10:07,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 03:10:07,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 03:10:07,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 03:10:07,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 03:10:07,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 03:10:07,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 03:10:07,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 03:10:07,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (1/1) ... [2023-04-02 03:10:07,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:10:07,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:10:07,546 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) [2023-04-02 03:10:07,565 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 [2023-04-02 03:10:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 03:10:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 03:10:07,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 03:10:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 03:10:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 03:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 03:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 03:10:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 03:10:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 03:10:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 03:10:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 03:10:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 03:10:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 03:10:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 03:10:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 03:10:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 03:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 03:10:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 03:10:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 03:10:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 03:10:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 03:10:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 03:10:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 03:10:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 03:10:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 03:10:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 03:10:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 03:10:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2023-04-02 03:10:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 03:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 03:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 03:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 03:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 03:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 03:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 03:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2023-04-02 03:10:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 03:10:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 03:10:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 03:10:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 03:10:07,815 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 03:10:07,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 03:10:09,096 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 03:10:09,108 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 03:10:09,108 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 03:10:09,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:10:09 BoogieIcfgContainer [2023-04-02 03:10:09,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 03:10:09,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 03:10:09,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 03:10:09,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 03:10:09,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:10:06" (1/3) ... [2023-04-02 03:10:09,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5ca387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:10:09, skipping insertion in model container [2023-04-02 03:10:09,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:10:07" (2/3) ... [2023-04-02 03:10:09,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5ca387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:10:09, skipping insertion in model container [2023-04-02 03:10:09,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:10:09" (3/3) ... [2023-04-02 03:10:09,116 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2023-04-02 03:10:09,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 03:10:09,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 03:10:09,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 03:10:09,177 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;@4baa1901, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 03:10:09,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 03:10:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 728 states, 509 states have (on average 1.6522593320235757) internal successors, (841), 536 states have internal predecessors, (841), 160 states have call successors, (160), 46 states have call predecessors, (160), 46 states have return successors, (160), 151 states have call predecessors, (160), 160 states have call successors, (160) [2023-04-02 03:10:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-04-02 03:10:09,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:10:09,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:10:09,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:10:09,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:10:09,203 INFO L85 PathProgramCache]: Analyzing trace with hash -785647528, now seen corresponding path program 1 times [2023-04-02 03:10:09,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:10:09,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782006560] [2023-04-02 03:10:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:10:09,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:10:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:10:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:10:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:10:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:09,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:10:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:10:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:10:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:10:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 03:10:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:10:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:10:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:10:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:10:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:10:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782006560] [2023-04-02 03:10:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782006560] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:10:10,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:10:10,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 03:10:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651158767] [2023-04-02 03:10:10,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:10:10,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 03:10:10,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:10:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 03:10:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 03:10:10,318 INFO L87 Difference]: Start difference. First operand has 728 states, 509 states have (on average 1.6522593320235757) internal successors, (841), 536 states have internal predecessors, (841), 160 states have call successors, (160), 46 states have call predecessors, (160), 46 states have return successors, (160), 151 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 8 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 03:10:18,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:10:18,260 INFO L93 Difference]: Finished difference Result 1676 states and 3031 transitions. [2023-04-02 03:10:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 03:10:18,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 8 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 109 [2023-04-02 03:10:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:10:18,289 INFO L225 Difference]: With dead ends: 1676 [2023-04-02 03:10:18,289 INFO L226 Difference]: Without dead ends: 1097 [2023-04-02 03:10:18,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:10:18,300 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1958 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 4814 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 4814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:10:18,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 762 Invalid, 5585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 4814 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 03:10:18,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2023-04-02 03:10:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 568. [2023-04-02 03:10:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 424 states have (on average 1.6863207547169812) internal successors, (715), 443 states have internal predecessors, (715), 105 states have call successors, (105), 42 states have call predecessors, (105), 38 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-02 03:10:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 917 transitions. [2023-04-02 03:10:18,476 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 917 transitions. Word has length 109 [2023-04-02 03:10:18,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:10:18,476 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 917 transitions. [2023-04-02 03:10:18,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 8 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 03:10:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 917 transitions. [2023-04-02 03:10:18,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-04-02 03:10:18,484 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:10:18,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:10:18,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 03:10:18,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:10:18,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:10:18,486 INFO L85 PathProgramCache]: Analyzing trace with hash -267089185, now seen corresponding path program 1 times [2023-04-02 03:10:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:10:18,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942294893] [2023-04-02 03:10:18,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:10:18,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:10:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:10:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:10:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:10:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:10:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:10:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:10:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:10:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:10:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:10:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:10:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:10:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:10:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:10:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942294893] [2023-04-02 03:10:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942294893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:10:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:10:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:10:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908916561] [2023-04-02 03:10:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:10:19,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:10:19,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:10:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:10:19,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:10:19,332 INFO L87 Difference]: Start difference. First operand 568 states and 917 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (24), 8 states have call predecessors, (24), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 03:10:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:10:29,243 INFO L93 Difference]: Finished difference Result 1639 states and 2988 transitions. [2023-04-02 03:10:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 03:10:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (24), 8 states have call predecessors, (24), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 112 [2023-04-02 03:10:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:10:29,250 INFO L225 Difference]: With dead ends: 1639 [2023-04-02 03:10:29,250 INFO L226 Difference]: Without dead ends: 1108 [2023-04-02 03:10:29,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2023-04-02 03:10:29,253 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1855 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 8399 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 9152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 8399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:10:29,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 1351 Invalid, 9152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [753 Valid, 8399 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-04-02 03:10:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-04-02 03:10:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 572. [2023-04-02 03:10:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 427 states have (on average 1.6791569086651055) internal successors, (717), 446 states have internal predecessors, (717), 105 states have call successors, (105), 42 states have call predecessors, (105), 39 states have return successors, (99), 95 states have call predecessors, (99), 97 states have call successors, (99) [2023-04-02 03:10:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 921 transitions. [2023-04-02 03:10:29,405 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 921 transitions. Word has length 112 [2023-04-02 03:10:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:10:29,407 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 921 transitions. [2023-04-02 03:10:29,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (24), 8 states have call predecessors, (24), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 03:10:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 921 transitions. [2023-04-02 03:10:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 03:10:29,411 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:10:29,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:10:29,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 03:10:29,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:10:29,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:10:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1189235265, now seen corresponding path program 1 times [2023-04-02 03:10:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:10:29,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42870466] [2023-04-02 03:10:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:10:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:10:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:10:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:10:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:10:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:10:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:10:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:10:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:10:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:10:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:10:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 03:10:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 03:10:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:10:30,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:10:30,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42870466] [2023-04-02 03:10:30,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42870466] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:10:30,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:10:30,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:10:30,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059548532] [2023-04-02 03:10:30,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:10:30,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:10:30,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:10:30,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:10:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:10:30,090 INFO L87 Difference]: Start difference. First operand 572 states and 921 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (24), 8 states have call predecessors, (24), 5 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-04-02 03:10:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:10:45,505 INFO L93 Difference]: Finished difference Result 3349 states and 6499 transitions. [2023-04-02 03:10:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-04-02 03:10:45,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (24), 8 states have call predecessors, (24), 5 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 117 [2023-04-02 03:10:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:10:45,527 INFO L225 Difference]: With dead ends: 3349 [2023-04-02 03:10:45,527 INFO L226 Difference]: Without dead ends: 2814 [2023-04-02 03:10:45,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=797, Invalid=2283, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 03:10:45,540 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 6835 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 10079 mSolverCounterSat, 3097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6919 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 13176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3097 IncrementalHoareTripleChecker+Valid, 10079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:10:45,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6919 Valid, 1516 Invalid, 13176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3097 Valid, 10079 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-04-02 03:10:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2023-04-02 03:10:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 1421. [2023-04-02 03:10:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1061 states have (on average 1.6399622997172478) internal successors, (1740), 1108 states have internal predecessors, (1740), 262 states have call successors, (262), 97 states have call predecessors, (262), 97 states have return successors, (295), 251 states have call predecessors, (295), 254 states have call successors, (295) [2023-04-02 03:10:45,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2297 transitions. [2023-04-02 03:10:45,971 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2297 transitions. Word has length 117 [2023-04-02 03:10:45,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:10:45,971 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 2297 transitions. [2023-04-02 03:10:45,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (24), 8 states have call predecessors, (24), 5 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-04-02 03:10:45,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2297 transitions. [2023-04-02 03:10:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-04-02 03:10:45,974 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:10:45,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:10:45,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 03:10:45,974 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:10:45,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:10:45,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1692419969, now seen corresponding path program 1 times [2023-04-02 03:10:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:10:45,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976468828] [2023-04-02 03:10:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:10:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:10:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:10:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:10:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:10:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:10:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:10:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:10:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:10:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:10:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 03:10:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:10:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:10:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 03:10:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 03:10:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:10:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:10:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:10:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:10:46,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:10:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976468828] [2023-04-02 03:10:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976468828] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:10:46,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:10:46,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 03:10:46,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536192061] [2023-04-02 03:10:46,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:10:46,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 03:10:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:10:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 03:10:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-04-02 03:10:46,776 INFO L87 Difference]: Start difference. First operand 1421 states and 2297 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (25), 8 states have call predecessors, (25), 6 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:11:02,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:02,192 INFO L93 Difference]: Finished difference Result 4424 states and 8198 transitions. [2023-04-02 03:11:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 03:11:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (25), 8 states have call predecessors, (25), 6 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 126 [2023-04-02 03:11:02,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:02,207 INFO L225 Difference]: With dead ends: 4424 [2023-04-02 03:11:02,207 INFO L226 Difference]: Without dead ends: 2866 [2023-04-02 03:11:02,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2023-04-02 03:11:02,220 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 5429 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 12264 mSolverCounterSat, 2205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 14469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2205 IncrementalHoareTripleChecker+Valid, 12264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:02,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5501 Valid, 2288 Invalid, 14469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2205 Valid, 12264 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 03:11:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2023-04-02 03:11:02,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1496. [2023-04-02 03:11:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1119 states have (on average 1.610366398570152) internal successors, (1802), 1168 states have internal predecessors, (1802), 274 states have call successors, (274), 102 states have call predecessors, (274), 102 states have return successors, (316), 261 states have call predecessors, (316), 266 states have call successors, (316) [2023-04-02 03:11:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2392 transitions. [2023-04-02 03:11:02,621 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2392 transitions. Word has length 126 [2023-04-02 03:11:02,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:02,622 INFO L495 AbstractCegarLoop]: Abstraction has 1496 states and 2392 transitions. [2023-04-02 03:11:02,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (25), 8 states have call predecessors, (25), 6 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:11:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2392 transitions. [2023-04-02 03:11:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 03:11:02,624 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:02,624 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:02,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 03:11:02,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:02,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1018402866, now seen corresponding path program 1 times [2023-04-02 03:11:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751434710] [2023-04-02 03:11:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:11:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:11:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 03:11:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:11:03,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751434710] [2023-04-02 03:11:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751434710] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:03,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:03,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:11:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626630179] [2023-04-02 03:11:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:03,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:11:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:11:03,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:11:03,281 INFO L87 Difference]: Start difference. First operand 1496 states and 2392 transitions. Second operand has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:13,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:13,282 INFO L93 Difference]: Finished difference Result 4371 states and 8203 transitions. [2023-04-02 03:11:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:11:13,282 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 129 [2023-04-02 03:11:13,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:13,300 INFO L225 Difference]: With dead ends: 4371 [2023-04-02 03:11:13,300 INFO L226 Difference]: Without dead ends: 2912 [2023-04-02 03:11:13,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 03:11:13,306 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 3142 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 10322 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 11489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 10322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:13,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3223 Valid, 1764 Invalid, 11489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1167 Valid, 10322 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-04-02 03:11:13,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2023-04-02 03:11:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1520. [2023-04-02 03:11:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1131 states have (on average 1.6030061892130858) internal successors, (1813), 1188 states have internal predecessors, (1813), 278 states have call successors, (278), 102 states have call predecessors, (278), 110 states have return successors, (348), 265 states have call predecessors, (348), 270 states have call successors, (348) [2023-04-02 03:11:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2439 transitions. [2023-04-02 03:11:13,727 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2439 transitions. Word has length 129 [2023-04-02 03:11:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:13,728 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2439 transitions. [2023-04-02 03:11:13,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2439 transitions. [2023-04-02 03:11:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 03:11:13,730 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:13,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:13,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 03:11:13,730 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:13,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:13,731 INFO L85 PathProgramCache]: Analyzing trace with hash 256817347, now seen corresponding path program 1 times [2023-04-02 03:11:13,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:13,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403307513] [2023-04-02 03:11:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:13,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:11:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:11:14,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:14,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403307513] [2023-04-02 03:11:14,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403307513] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:14,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:14,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:11:14,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759380973] [2023-04-02 03:11:14,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:14,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:11:14,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:14,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:11:14,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:11:14,493 INFO L87 Difference]: Start difference. First operand 1520 states and 2439 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:24,446 INFO L93 Difference]: Finished difference Result 4291 states and 7883 transitions. [2023-04-02 03:11:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:11:24,446 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 130 [2023-04-02 03:11:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:24,475 INFO L225 Difference]: With dead ends: 4291 [2023-04-02 03:11:24,475 INFO L226 Difference]: Without dead ends: 2854 [2023-04-02 03:11:24,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:11:24,481 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1324 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 8721 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 9234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 8721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:24,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1442 Invalid, 9234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [513 Valid, 8721 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 03:11:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2023-04-02 03:11:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1520. [2023-04-02 03:11:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1131 states have (on average 1.5985853227232538) internal successors, (1808), 1188 states have internal predecessors, (1808), 278 states have call successors, (278), 102 states have call predecessors, (278), 110 states have return successors, (348), 265 states have call predecessors, (348), 270 states have call successors, (348) [2023-04-02 03:11:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2434 transitions. [2023-04-02 03:11:24,930 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2434 transitions. Word has length 130 [2023-04-02 03:11:24,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:24,930 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2434 transitions. [2023-04-02 03:11:24,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2434 transitions. [2023-04-02 03:11:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:11:24,933 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:24,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:11:24,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:24,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash 452880902, now seen corresponding path program 1 times [2023-04-02 03:11:24,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:24,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195684527] [2023-04-02 03:11:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:11:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 03:11:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:11:25,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:25,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195684527] [2023-04-02 03:11:25,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195684527] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:25,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:25,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:11:25,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035371561] [2023-04-02 03:11:25,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:25,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:11:25,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:25,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:11:25,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:11:25,726 INFO L87 Difference]: Start difference. First operand 1520 states and 2434 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:34,438 INFO L93 Difference]: Finished difference Result 4291 states and 7878 transitions. [2023-04-02 03:11:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:11:34,438 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 131 [2023-04-02 03:11:34,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:34,453 INFO L225 Difference]: With dead ends: 4291 [2023-04-02 03:11:34,453 INFO L226 Difference]: Without dead ends: 2854 [2023-04-02 03:11:34,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:11:34,457 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 2858 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 7743 mSolverCounterSat, 1068 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 8811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1068 IncrementalHoareTripleChecker+Valid, 7743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:34,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 1345 Invalid, 8811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1068 Valid, 7743 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 03:11:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2023-04-02 03:11:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1520. [2023-04-02 03:11:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1131 states have (on average 1.5941644562334218) internal successors, (1803), 1188 states have internal predecessors, (1803), 278 states have call successors, (278), 102 states have call predecessors, (278), 110 states have return successors, (348), 265 states have call predecessors, (348), 270 states have call successors, (348) [2023-04-02 03:11:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2429 transitions. [2023-04-02 03:11:34,914 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2429 transitions. Word has length 131 [2023-04-02 03:11:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:34,914 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2429 transitions. [2023-04-02 03:11:34,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2429 transitions. [2023-04-02 03:11:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:11:34,916 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:34,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:34,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:11:34,917 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:34,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1377290392, now seen corresponding path program 1 times [2023-04-02 03:11:34,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:34,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787028293] [2023-04-02 03:11:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:11:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 03:11:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:11:35,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:35,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787028293] [2023-04-02 03:11:35,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787028293] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:35,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:35,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:11:35,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813134065] [2023-04-02 03:11:35,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:35,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:11:35,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:11:35,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:11:35,614 INFO L87 Difference]: Start difference. First operand 1520 states and 2429 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:44,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:44,202 INFO L93 Difference]: Finished difference Result 4291 states and 7873 transitions. [2023-04-02 03:11:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:11:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 132 [2023-04-02 03:11:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:44,249 INFO L225 Difference]: With dead ends: 4291 [2023-04-02 03:11:44,249 INFO L226 Difference]: Without dead ends: 2854 [2023-04-02 03:11:44,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:11:44,258 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1919 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 7902 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 8649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 7902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:44,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 1250 Invalid, 8649 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [747 Valid, 7902 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 03:11:44,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2023-04-02 03:11:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1520. [2023-04-02 03:11:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1131 states have (on average 1.5897435897435896) internal successors, (1798), 1188 states have internal predecessors, (1798), 278 states have call successors, (278), 102 states have call predecessors, (278), 110 states have return successors, (348), 265 states have call predecessors, (348), 270 states have call successors, (348) [2023-04-02 03:11:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2424 transitions. [2023-04-02 03:11:44,742 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2424 transitions. Word has length 132 [2023-04-02 03:11:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:44,742 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2424 transitions. [2023-04-02 03:11:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2424 transitions. [2023-04-02 03:11:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-02 03:11:44,744 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:44,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:44,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:11:44,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:44,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1596232565, now seen corresponding path program 1 times [2023-04-02 03:11:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:44,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184984755] [2023-04-02 03:11:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:11:45,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:45,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184984755] [2023-04-02 03:11:45,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184984755] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:45,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:45,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:11:45,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290653446] [2023-04-02 03:11:45,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:45,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:11:45,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:11:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:11:45,425 INFO L87 Difference]: Start difference. First operand 1520 states and 2424 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:11:53,646 INFO L93 Difference]: Finished difference Result 4291 states and 7868 transitions. [2023-04-02 03:11:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:11:53,646 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 133 [2023-04-02 03:11:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:11:53,681 INFO L225 Difference]: With dead ends: 4291 [2023-04-02 03:11:53,681 INFO L226 Difference]: Without dead ends: 2854 [2023-04-02 03:11:53,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:11:53,694 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 2972 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 7604 mSolverCounterSat, 1147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 8751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1147 IncrementalHoareTripleChecker+Valid, 7604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:11:53,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 1247 Invalid, 8751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1147 Valid, 7604 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 03:11:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2023-04-02 03:11:54,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1520. [2023-04-02 03:11:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1131 states have (on average 1.5853227232537577) internal successors, (1793), 1188 states have internal predecessors, (1793), 278 states have call successors, (278), 102 states have call predecessors, (278), 110 states have return successors, (348), 265 states have call predecessors, (348), 270 states have call successors, (348) [2023-04-02 03:11:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2419 transitions. [2023-04-02 03:11:54,193 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2419 transitions. Word has length 133 [2023-04-02 03:11:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:11:54,193 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2419 transitions. [2023-04-02 03:11:54,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:11:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2419 transitions. [2023-04-02 03:11:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-02 03:11:54,195 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:11:54,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:11:54,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:11:54,196 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:11:54,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:11:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1322718804, now seen corresponding path program 1 times [2023-04-02 03:11:54,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:11:54,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408295123] [2023-04-02 03:11:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:11:54,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:11:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:11:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:11:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:11:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:11:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:11:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:11:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:11:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:11:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:11:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:11:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:11:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:11:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:11:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:11:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:11:54,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:11:54,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408295123] [2023-04-02 03:11:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408295123] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:11:54,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:11:54,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:11:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109293554] [2023-04-02 03:11:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:11:54,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:11:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:11:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:11:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:11:54,806 INFO L87 Difference]: Start difference. First operand 1520 states and 2419 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (26), 8 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 03:12:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:12:02,994 INFO L93 Difference]: Finished difference Result 4299 states and 8001 transitions. [2023-04-02 03:12:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:12:02,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (26), 8 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2023-04-02 03:12:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:12:03,009 INFO L225 Difference]: With dead ends: 4299 [2023-04-02 03:12:03,009 INFO L226 Difference]: Without dead ends: 2872 [2023-04-02 03:12:03,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 03:12:03,015 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1373 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 5690 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 6277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 5690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:12:03,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 796 Invalid, 6277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 5690 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 03:12:03,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2023-04-02 03:12:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1532. [2023-04-02 03:12:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1140 states have (on average 1.580701754385965) internal successors, (1802), 1197 states have internal predecessors, (1802), 278 states have call successors, (278), 102 states have call predecessors, (278), 113 states have return successors, (354), 268 states have call predecessors, (354), 270 states have call successors, (354) [2023-04-02 03:12:03,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2434 transitions. [2023-04-02 03:12:03,570 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2434 transitions. Word has length 133 [2023-04-02 03:12:03,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:12:03,570 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 2434 transitions. [2023-04-02 03:12:03,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (26), 8 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 03:12:03,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2434 transitions. [2023-04-02 03:12:03,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 03:12:03,573 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:12:03,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:12:03,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:12:03,573 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:12:03,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:12:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1702321297, now seen corresponding path program 1 times [2023-04-02 03:12:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:12:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045183248] [2023-04-02 03:12:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:12:03,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:12:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:12:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:12:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:12:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:12:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:12:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:12:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:12:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:12:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:12:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:12:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:12:04,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:12:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045183248] [2023-04-02 03:12:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045183248] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:12:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:12:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:12:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421099301] [2023-04-02 03:12:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:12:04,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:12:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:12:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:12:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:12:04,282 INFO L87 Difference]: Start difference. First operand 1532 states and 2434 transitions. Second operand has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 03:12:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:12:13,008 INFO L93 Difference]: Finished difference Result 4332 states and 7925 transitions. [2023-04-02 03:12:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:12:13,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) Word has length 139 [2023-04-02 03:12:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:12:13,021 INFO L225 Difference]: With dead ends: 4332 [2023-04-02 03:12:13,021 INFO L226 Difference]: Without dead ends: 2886 [2023-04-02 03:12:13,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:12:13,026 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 2321 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 8695 mSolverCounterSat, 965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 9660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 8695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:12:13,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 1294 Invalid, 9660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [965 Valid, 8695 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 03:12:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2023-04-02 03:12:13,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1535. [2023-04-02 03:12:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1141 states have (on average 1.5801928133216476) internal successors, (1803), 1200 states have internal predecessors, (1803), 279 states have call successors, (279), 102 states have call predecessors, (279), 114 states have return successors, (356), 268 states have call predecessors, (356), 271 states have call successors, (356) [2023-04-02 03:12:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2438 transitions. [2023-04-02 03:12:13,573 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2438 transitions. Word has length 139 [2023-04-02 03:12:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:12:13,573 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 2438 transitions. [2023-04-02 03:12:13,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 03:12:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2438 transitions. [2023-04-02 03:12:13,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:12:13,576 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:12:13,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:12:13,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:12:13,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:12:13,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:12:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash 796417808, now seen corresponding path program 1 times [2023-04-02 03:12:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:12:13,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532781470] [2023-04-02 03:12:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:12:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:12:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:12:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:12:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:12:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:12:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:12:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:12:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:12:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:12:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:12:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:12:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:12:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:12:14,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:12:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532781470] [2023-04-02 03:12:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532781470] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:12:14,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:12:14,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:12:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011908078] [2023-04-02 03:12:14,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:12:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:12:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:12:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:12:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:12:14,206 INFO L87 Difference]: Start difference. First operand 1535 states and 2438 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-04-02 03:12:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:12:23,455 INFO L93 Difference]: Finished difference Result 4320 states and 7909 transitions. [2023-04-02 03:12:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:12:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 140 [2023-04-02 03:12:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:12:23,471 INFO L225 Difference]: With dead ends: 4320 [2023-04-02 03:12:23,471 INFO L226 Difference]: Without dead ends: 2870 [2023-04-02 03:12:23,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:12:23,477 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 1389 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 8014 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 8597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 8014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:12:23,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1122 Invalid, 8597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 8014 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 03:12:23,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2023-04-02 03:12:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1535. [2023-04-02 03:12:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1141 states have (on average 1.5758106923751096) internal successors, (1798), 1200 states have internal predecessors, (1798), 279 states have call successors, (279), 102 states have call predecessors, (279), 114 states have return successors, (356), 268 states have call predecessors, (356), 271 states have call successors, (356) [2023-04-02 03:12:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2433 transitions. [2023-04-02 03:12:24,052 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2433 transitions. Word has length 140 [2023-04-02 03:12:24,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:12:24,052 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 2433 transitions. [2023-04-02 03:12:24,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-04-02 03:12:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2433 transitions. [2023-04-02 03:12:24,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:12:24,054 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:12:24,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:12:24,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:12:24,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:12:24,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:12:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1891849321, now seen corresponding path program 1 times [2023-04-02 03:12:24,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:12:24,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561906522] [2023-04-02 03:12:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:12:24,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:12:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:12:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:12:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:12:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:12:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:12:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:12:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:12:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:12:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:12:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:12:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:12:24,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:12:24,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561906522] [2023-04-02 03:12:24,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561906522] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:12:24,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:12:24,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:12:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917243847] [2023-04-02 03:12:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:12:24,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:12:24,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:12:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:12:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:12:24,661 INFO L87 Difference]: Start difference. First operand 1535 states and 2433 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 03:12:33,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:12:33,410 INFO L93 Difference]: Finished difference Result 4485 states and 8505 transitions. [2023-04-02 03:12:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 03:12:33,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 140 [2023-04-02 03:12:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:12:33,431 INFO L225 Difference]: With dead ends: 4485 [2023-04-02 03:12:33,431 INFO L226 Difference]: Without dead ends: 3047 [2023-04-02 03:12:33,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2023-04-02 03:12:33,440 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 2901 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 5453 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 6698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:12:33,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 915 Invalid, 6698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5453 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 03:12:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2023-04-02 03:12:34,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 1547. [2023-04-02 03:12:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1150 states have (on average 1.5713043478260869) internal successors, (1807), 1209 states have internal predecessors, (1807), 279 states have call successors, (279), 102 states have call predecessors, (279), 117 states have return successors, (361), 271 states have call predecessors, (361), 271 states have call successors, (361) [2023-04-02 03:12:34,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2447 transitions. [2023-04-02 03:12:34,142 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2447 transitions. Word has length 140 [2023-04-02 03:12:34,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:12:34,142 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2447 transitions. [2023-04-02 03:12:34,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 03:12:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2447 transitions. [2023-04-02 03:12:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 03:12:34,144 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:12:34,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:12:34,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 03:12:34,145 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:12:34,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:12:34,145 INFO L85 PathProgramCache]: Analyzing trace with hash -516969091, now seen corresponding path program 1 times [2023-04-02 03:12:34,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:12:34,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635361569] [2023-04-02 03:12:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:12:34,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:12:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:12:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:12:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:12:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:12:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:12:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:12:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:12:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:12:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:12:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:12:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:12:34,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:12:34,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635361569] [2023-04-02 03:12:34,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635361569] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:12:34,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:12:34,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:12:34,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392318307] [2023-04-02 03:12:34,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:12:34,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:12:34,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:12:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:12:34,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:12:34,891 INFO L87 Difference]: Start difference. First operand 1547 states and 2447 transitions. Second operand has 14 states, 13 states have (on average 7.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:12:44,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:12:44,558 INFO L93 Difference]: Finished difference Result 4360 states and 7959 transitions. [2023-04-02 03:12:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:12:44,559 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) Word has length 147 [2023-04-02 03:12:44,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:12:44,572 INFO L225 Difference]: With dead ends: 4360 [2023-04-02 03:12:44,572 INFO L226 Difference]: Without dead ends: 2902 [2023-04-02 03:12:44,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:12:44,576 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 2830 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 8736 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 9851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 8736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:12:44,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 1200 Invalid, 9851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1115 Valid, 8736 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 03:12:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2023-04-02 03:12:45,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 1550. [2023-04-02 03:12:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1151 states have (on average 1.5708079930495222) internal successors, (1808), 1212 states have internal predecessors, (1808), 280 states have call successors, (280), 102 states have call predecessors, (280), 118 states have return successors, (363), 271 states have call predecessors, (363), 272 states have call successors, (363) [2023-04-02 03:12:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2451 transitions. [2023-04-02 03:12:45,158 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2451 transitions. Word has length 147 [2023-04-02 03:12:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:12:45,158 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2451 transitions. [2023-04-02 03:12:45,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:12:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2451 transitions. [2023-04-02 03:12:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 03:12:45,160 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:12:45,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:12:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:12:45,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:12:45,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:12:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash -286749759, now seen corresponding path program 1 times [2023-04-02 03:12:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:12:45,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803771391] [2023-04-02 03:12:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:12:45,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:12:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:12:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:12:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:12:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:12:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:12:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:12:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:12:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:12:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:12:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:12:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:12:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:12:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:12:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:12:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:12:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:12:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:12:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:12:46,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:12:46,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803771391] [2023-04-02 03:12:46,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803771391] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:12:46,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:12:46,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:12:46,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790100016] [2023-04-02 03:12:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:12:46,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:12:46,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:12:46,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:12:46,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:12:46,107 INFO L87 Difference]: Start difference. First operand 1550 states and 2451 transitions. Second operand has 19 states, 17 states have (on average 5.411764705882353) internal successors, (92), 10 states have internal predecessors, (92), 7 states have call successors, (28), 8 states have call predecessors, (28), 7 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-02 03:13:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:13:04,185 INFO L93 Difference]: Finished difference Result 5302 states and 9962 transitions. [2023-04-02 03:13:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:13:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.411764705882353) internal successors, (92), 10 states have internal predecessors, (92), 7 states have call successors, (28), 8 states have call predecessors, (28), 7 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 148 [2023-04-02 03:13:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:13:04,202 INFO L225 Difference]: With dead ends: 5302 [2023-04-02 03:13:04,202 INFO L226 Difference]: Without dead ends: 3851 [2023-04-02 03:13:04,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=539, Invalid=2113, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 03:13:04,206 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 5892 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 17454 mSolverCounterSat, 3665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5894 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 21119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3665 IncrementalHoareTripleChecker+Valid, 17454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:13:04,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5894 Valid, 1871 Invalid, 21119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3665 Valid, 17454 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2023-04-02 03:13:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2023-04-02 03:13:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 1985. [2023-04-02 03:13:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1450 states have (on average 1.5751724137931034) internal successors, (2284), 1528 states have internal predecessors, (2284), 386 states have call successors, (386), 125 states have call predecessors, (386), 148 states have return successors, (492), 384 states have call predecessors, (492), 378 states have call successors, (492) [2023-04-02 03:13:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 3162 transitions. [2023-04-02 03:13:05,052 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 3162 transitions. Word has length 148 [2023-04-02 03:13:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:13:05,052 INFO L495 AbstractCegarLoop]: Abstraction has 1985 states and 3162 transitions. [2023-04-02 03:13:05,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.411764705882353) internal successors, (92), 10 states have internal predecessors, (92), 7 states have call successors, (28), 8 states have call predecessors, (28), 7 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-02 03:13:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 3162 transitions. [2023-04-02 03:13:05,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 03:13:05,055 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:13:05,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:13:05,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 03:13:05,056 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:13:05,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:13:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 513872298, now seen corresponding path program 1 times [2023-04-02 03:13:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:13:05,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899442396] [2023-04-02 03:13:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:13:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:13:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:13:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:13:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:13:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:13:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:13:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:13:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:13:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:13:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:13:05,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:13:05,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899442396] [2023-04-02 03:13:05,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899442396] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:13:05,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:13:05,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:13:05,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068787381] [2023-04-02 03:13:05,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:13:05,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:13:05,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:13:05,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:13:05,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:13:05,743 INFO L87 Difference]: Start difference. First operand 1985 states and 3162 transitions. Second operand has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:13:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:13:16,915 INFO L93 Difference]: Finished difference Result 5300 states and 9926 transitions. [2023-04-02 03:13:16,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:13:16,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) Word has length 148 [2023-04-02 03:13:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:13:16,931 INFO L225 Difference]: With dead ends: 5300 [2023-04-02 03:13:16,931 INFO L226 Difference]: Without dead ends: 3842 [2023-04-02 03:13:16,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:13:16,934 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 3459 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 8296 mSolverCounterSat, 1478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 9774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1478 IncrementalHoareTripleChecker+Valid, 8296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:13:16,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3547 Valid, 1305 Invalid, 9774 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1478 Valid, 8296 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 03:13:16,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2023-04-02 03:13:17,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 1988. [2023-04-02 03:13:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1451 states have (on average 1.574776016540317) internal successors, (2285), 1531 states have internal predecessors, (2285), 387 states have call successors, (387), 125 states have call predecessors, (387), 149 states have return successors, (494), 384 states have call predecessors, (494), 379 states have call successors, (494) [2023-04-02 03:13:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3166 transitions. [2023-04-02 03:13:17,844 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3166 transitions. Word has length 148 [2023-04-02 03:13:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:13:17,844 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 3166 transitions. [2023-04-02 03:13:17,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:13:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3166 transitions. [2023-04-02 03:13:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 03:13:17,847 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:13:17,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:13:17,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 03:13:17,847 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:13:17,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:13:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2112894754, now seen corresponding path program 1 times [2023-04-02 03:13:17,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:13:17,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625924934] [2023-04-02 03:13:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:13:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:13:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:13:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 03:13:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:13:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:13:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:13:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:13:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:13:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:13:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:13:18,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:13:18,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625924934] [2023-04-02 03:13:18,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625924934] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:13:18,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:13:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:13:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145699897] [2023-04-02 03:13:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:13:18,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:13:18,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:13:18,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:13:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:13:18,583 INFO L87 Difference]: Start difference. First operand 1988 states and 3166 transitions. Second operand has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:13:30,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:13:30,011 INFO L93 Difference]: Finished difference Result 5304 states and 9937 transitions. [2023-04-02 03:13:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:13:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) Word has length 149 [2023-04-02 03:13:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:13:30,030 INFO L225 Difference]: With dead ends: 5304 [2023-04-02 03:13:30,030 INFO L226 Difference]: Without dead ends: 3846 [2023-04-02 03:13:30,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:13:30,035 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 2296 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 8716 mSolverCounterSat, 964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 9680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 964 IncrementalHoareTripleChecker+Valid, 8716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:13:30,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 1263 Invalid, 9680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [964 Valid, 8716 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:13:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2023-04-02 03:13:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 1991. [2023-04-02 03:13:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1452 states have (on average 1.5743801652892562) internal successors, (2286), 1534 states have internal predecessors, (2286), 388 states have call successors, (388), 125 states have call predecessors, (388), 150 states have return successors, (496), 384 states have call predecessors, (496), 380 states have call successors, (496) [2023-04-02 03:13:31,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3170 transitions. [2023-04-02 03:13:31,007 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3170 transitions. Word has length 149 [2023-04-02 03:13:31,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:13:31,007 INFO L495 AbstractCegarLoop]: Abstraction has 1991 states and 3170 transitions. [2023-04-02 03:13:31,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:13:31,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3170 transitions. [2023-04-02 03:13:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 03:13:31,010 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:13:31,010 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:13:31,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 03:13:31,011 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:13:31,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:13:31,011 INFO L85 PathProgramCache]: Analyzing trace with hash -308540351, now seen corresponding path program 1 times [2023-04-02 03:13:31,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:13:31,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473208374] [2023-04-02 03:13:31,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:31,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:13:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:13:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:13:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:13:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:13:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:13:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:13:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:13:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:13:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:13:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:13:31,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:13:31,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473208374] [2023-04-02 03:13:31,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473208374] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:13:31,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:13:31,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 03:13:31,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611191230] [2023-04-02 03:13:31,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:13:31,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 03:13:31,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:13:31,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 03:13:31,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:13:31,975 INFO L87 Difference]: Start difference. First operand 1991 states and 3170 transitions. Second operand has 16 states, 16 states have (on average 5.875) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (28), 9 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:13:46,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:13:46,414 INFO L93 Difference]: Finished difference Result 6493 states and 12503 transitions. [2023-04-02 03:13:46,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-04-02 03:13:46,427 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (28), 9 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 4 states have call successors, (24) Word has length 150 [2023-04-02 03:13:46,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:13:46,451 INFO L225 Difference]: With dead ends: 6493 [2023-04-02 03:13:46,451 INFO L226 Difference]: Without dead ends: 4612 [2023-04-02 03:13:46,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=581, Invalid=2611, Unknown=0, NotChecked=0, Total=3192 [2023-04-02 03:13:46,460 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 5878 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 9303 mSolverCounterSat, 2730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5882 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 12033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2730 IncrementalHoareTripleChecker+Valid, 9303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:13:46,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5882 Valid, 1303 Invalid, 12033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2730 Valid, 9303 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:13:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2023-04-02 03:13:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 2441. [2023-04-02 03:13:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 1752 states have (on average 1.5450913242009132) internal successors, (2707), 1859 states have internal predecessors, (2707), 503 states have call successors, (503), 151 states have call predecessors, (503), 185 states have return successors, (697), 501 states have call predecessors, (697), 495 states have call successors, (697) [2023-04-02 03:13:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3907 transitions. [2023-04-02 03:13:47,685 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3907 transitions. Word has length 150 [2023-04-02 03:13:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:13:47,685 INFO L495 AbstractCegarLoop]: Abstraction has 2441 states and 3907 transitions. [2023-04-02 03:13:47,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (28), 9 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:13:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3907 transitions. [2023-04-02 03:13:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 03:13:47,688 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:13:47,688 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:13:47,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 03:13:47,688 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:13:47,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:13:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash 423427075, now seen corresponding path program 1 times [2023-04-02 03:13:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:13:47,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824551125] [2023-04-02 03:13:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:47,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:13:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:47,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:13:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:13:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:13:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:13:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:13:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:13:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:13:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:13:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:13:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:13:48,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:13:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824551125] [2023-04-02 03:13:48,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824551125] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:13:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420487654] [2023-04-02 03:13:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:48,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:13:48,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:13:48,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:13:48,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 03:13:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:48,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-02 03:13:48,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:13:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:13:49,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:13:49,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420487654] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:13:49,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:13:49,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-04-02 03:13:49,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617228087] [2023-04-02 03:13:49,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:13:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 03:13:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:13:49,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 03:13:49,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-04-02 03:13:49,026 INFO L87 Difference]: Start difference. First operand 2441 states and 3907 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:13:53,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:13:53,559 INFO L93 Difference]: Finished difference Result 7725 states and 13065 transitions. [2023-04-02 03:13:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 03:13:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 150 [2023-04-02 03:13:53,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:13:53,578 INFO L225 Difference]: With dead ends: 7725 [2023-04-02 03:13:53,578 INFO L226 Difference]: Without dead ends: 5396 [2023-04-02 03:13:53,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-02 03:13:53,586 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2620 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 3527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:13:53,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2721 Valid, 845 Invalid, 3527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 03:13:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2023-04-02 03:13:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5032. [2023-04-02 03:13:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 3526 states have (on average 1.5405558706749858) internal successors, (5432), 3761 states have internal predecessors, (5432), 1129 states have call successors, (1129), 285 states have call predecessors, (1129), 376 states have return successors, (1719), 1152 states have call predecessors, (1719), 1121 states have call successors, (1719) [2023-04-02 03:13:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 8280 transitions. [2023-04-02 03:13:56,175 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 8280 transitions. Word has length 150 [2023-04-02 03:13:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:13:56,176 INFO L495 AbstractCegarLoop]: Abstraction has 5032 states and 8280 transitions. [2023-04-02 03:13:56,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:13:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 8280 transitions. [2023-04-02 03:13:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 03:13:56,180 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:13:56,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:13:56,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 03:13:56,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:13:56,390 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:13:56,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:13:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1328445443, now seen corresponding path program 1 times [2023-04-02 03:13:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:13:56,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302405060] [2023-04-02 03:13:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:56,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:13:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:13:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:13:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:13:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:13:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:13:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:13:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:13:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:13:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:13:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:13:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:13:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:13:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:13:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:13:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:13:57,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:13:57,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302405060] [2023-04-02 03:13:57,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302405060] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:13:57,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290556464] [2023-04-02 03:13:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:13:57,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:13:57,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:13:57,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:13:57,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 03:13:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:13:57,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:13:57,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:13:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:13:57,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:13:57,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290556464] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:13:57,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:13:57,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:13:57,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965926373] [2023-04-02 03:13:57,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:13:57,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:13:57,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:13:57,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:13:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:13:57,652 INFO L87 Difference]: Start difference. First operand 5032 states and 8280 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-04-02 03:14:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:14:02,936 INFO L93 Difference]: Finished difference Result 14859 states and 25069 transitions. [2023-04-02 03:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:14:02,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 149 [2023-04-02 03:14:02,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:14:02,970 INFO L225 Difference]: With dead ends: 14859 [2023-04-02 03:14:02,971 INFO L226 Difference]: Without dead ends: 9941 [2023-04-02 03:14:02,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:14:02,986 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 857 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:14:02,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1777 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:14:02,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9941 states. [2023-04-02 03:14:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9941 to 9939. [2023-04-02 03:14:08,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9939 states, 6970 states have (on average 1.5428981348637016) internal successors, (10754), 7429 states have internal predecessors, (10754), 2232 states have call successors, (2232), 554 states have call predecessors, (2232), 736 states have return successors, (3805), 2289 states have call predecessors, (3805), 2223 states have call successors, (3805) [2023-04-02 03:14:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9939 states to 9939 states and 16791 transitions. [2023-04-02 03:14:08,542 INFO L78 Accepts]: Start accepts. Automaton has 9939 states and 16791 transitions. Word has length 149 [2023-04-02 03:14:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:14:08,543 INFO L495 AbstractCegarLoop]: Abstraction has 9939 states and 16791 transitions. [2023-04-02 03:14:08,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-04-02 03:14:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 9939 states and 16791 transitions. [2023-04-02 03:14:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 03:14:08,549 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:14:08,549 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:14:08,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 03:14:08,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-04-02 03:14:08,757 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:14:08,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:14:08,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1766597955, now seen corresponding path program 1 times [2023-04-02 03:14:08,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:14:08,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502101423] [2023-04-02 03:14:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:14:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:14:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:14:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:14:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:14:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:14:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:14:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:14:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:14:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:14:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:14:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:14:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:14:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:14:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:14:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:14:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:14:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:14:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:14:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:14:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:14:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:14:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:14:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:14:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:14:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:14:09,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:14:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502101423] [2023-04-02 03:14:09,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502101423] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:14:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107431142] [2023-04-02 03:14:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:14:09,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:14:09,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:14:09,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:14:09,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 03:14:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:14:09,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 2440 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:14:09,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:14:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:14:09,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:14:09,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107431142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:14:09,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:14:09,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:14:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757001828] [2023-04-02 03:14:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:14:09,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:14:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:14:09,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:14:09,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:14:09,922 INFO L87 Difference]: Start difference. First operand 9939 states and 16791 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-04-02 03:14:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:14:20,566 INFO L93 Difference]: Finished difference Result 29582 states and 51742 transitions. [2023-04-02 03:14:20,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:14:20,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 150 [2023-04-02 03:14:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:14:20,649 INFO L225 Difference]: With dead ends: 29582 [2023-04-02 03:14:20,650 INFO L226 Difference]: Without dead ends: 19757 [2023-04-02 03:14:20,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:14:20,681 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 856 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:14:20,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1732 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:14:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states.