/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/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:04:24,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:04:24,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:04:24,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:04:24,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:04:24,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:04:24,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:04:24,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:04:24,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:04:24,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:04:24,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:04:24,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:04:24,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:04:24,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:04:24,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:04:24,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:04:24,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:04:24,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:04:24,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:04:24,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:04:24,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:04:24,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:04:24,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:04:24,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:04:24,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:04:24,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:04:24,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:04:24,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:04:24,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:04:24,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:04:24,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:04:24,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:04:24,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:04:24,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:04:24,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:04:24,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:04:24,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:04:24,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:04:24,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:04:24,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:04:24,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:04:24,613 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 05:04:24,634 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:04:24,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:04:24,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:04:24,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:04:24,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:04:24,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:04:24,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:04:24,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:04:24,637 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:04:24,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:04:24,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:04:24,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:04:24,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:04:24,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:04:24,640 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:04:24,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:04:24,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:04:24,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:04:24,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:04:24,854 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:04:24,854 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:04:24,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2023-04-02 05:04:25,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:04:26,020 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:04:26,021 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2023-04-02 05:04:26,031 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/753917588/b5870823f13147aa94a4e1ea9473a2db/FLAGb2aa8993c [2023-04-02 05:04:26,041 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/753917588/b5870823f13147aa94a4e1ea9473a2db [2023-04-02 05:04:26,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:04:26,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:04:26,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:04:26,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:04:26,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:04:26,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5daf604a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26, skipping insertion in model container [2023-04-02 05:04:26,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:04:26,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:04:26,373 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/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c[28192,28205] [2023-04-02 05:04:26,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:04:26,389 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:04:26,437 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/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c[28192,28205] [2023-04-02 05:04:26,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:04:26,451 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:04:26,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26 WrapperNode [2023-04-02 05:04:26,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:04:26,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:04:26,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:04:26,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:04:26,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:04:26,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:04:26,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:04:26,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:04:26,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (1/1) ... [2023-04-02 05:04:26,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:04:26,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:04:26,559 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 05:04:26,560 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 05:04:26,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:04:26,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:04:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:04:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:04:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:04:26,703 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:04:26,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:04:27,432 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:04:27,445 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:04:27,445 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:04:27,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:04:27 BoogieIcfgContainer [2023-04-02 05:04:27,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:04:27,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:04:27,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:04:27,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:04:27,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:04:26" (1/3) ... [2023-04-02 05:04:27,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cb3f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:04:27, skipping insertion in model container [2023-04-02 05:04:27,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:26" (2/3) ... [2023-04-02 05:04:27,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cb3f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:04:27, skipping insertion in model container [2023-04-02 05:04:27,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:04:27" (3/3) ... [2023-04-02 05:04:27,453 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c [2023-04-02 05:04:27,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:04:27,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:04:27,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:04:27,523 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;@16dc41ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:04:27,523 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:04:27,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 288 states have (on average 1.8055555555555556) internal successors, (520), 289 states have internal predecessors, (520), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:04:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:04:27,550 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:27,551 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] [2023-04-02 05:04:27,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:27,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:27,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2119737232, now seen corresponding path program 1 times [2023-04-02 05:04:27,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:27,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637153969] [2023-04-02 05:04:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:27,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:04:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:04:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:04:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:04:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:04:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:04:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:28,347 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 05:04:28,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:28,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637153969] [2023-04-02 05:04:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637153969] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:28,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:28,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 05:04:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108524632] [2023-04-02 05:04:28,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:28,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 05:04:28,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:28,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 05:04:28,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:04:28,385 INFO L87 Difference]: Start difference. First operand has 310 states, 288 states have (on average 1.8055555555555556) internal successors, (520), 289 states have internal predecessors, (520), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:30,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:30,258 INFO L93 Difference]: Finished difference Result 431 states and 737 transitions. [2023-04-02 05:04:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:04:30,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2023-04-02 05:04:30,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:30,277 INFO L225 Difference]: With dead ends: 431 [2023-04-02 05:04:30,277 INFO L226 Difference]: Without dead ends: 317 [2023-04-02 05:04:30,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:04:30,286 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 724 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:30,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 80 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:04:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-04-02 05:04:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 305. [2023-04-02 05:04:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 285 states have (on average 1.8) internal successors, (513), 285 states have internal predecessors, (513), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:04:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 532 transitions. [2023-04-02 05:04:30,416 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 532 transitions. Word has length 104 [2023-04-02 05:04:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:30,417 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 532 transitions. [2023-04-02 05:04:30,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:30,417 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 532 transitions. [2023-04-02 05:04:30,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:04:30,419 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:30,419 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] [2023-04-02 05:04:30,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:04:30,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:30,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1751583342, now seen corresponding path program 1 times [2023-04-02 05:04:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860514905] [2023-04-02 05:04:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:30,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:04:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:04:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:04:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:04:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:04:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:04:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:31,143 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 05:04:31,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:31,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860514905] [2023-04-02 05:04:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860514905] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:31,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:31,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:04:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965182754] [2023-04-02 05:04:31,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:31,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:04:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:04:31,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:04:31,146 INFO L87 Difference]: Start difference. First operand 305 states and 532 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:34,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:34,674 INFO L93 Difference]: Finished difference Result 434 states and 741 transitions. [2023-04-02 05:04:34,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:04:34,674 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-04-02 05:04:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:34,677 INFO L225 Difference]: With dead ends: 434 [2023-04-02 05:04:34,677 INFO L226 Difference]: Without dead ends: 327 [2023-04-02 05:04:34,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:04:34,678 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 733 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:34,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 126 Invalid, 4026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:04:34,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-04-02 05:04:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 305. [2023-04-02 05:04:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 285 states have (on average 1.6526315789473685) internal successors, (471), 285 states have internal predecessors, (471), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:04:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 490 transitions. [2023-04-02 05:04:34,727 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 490 transitions. Word has length 104 [2023-04-02 05:04:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:34,730 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 490 transitions. [2023-04-02 05:04:34,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 490 transitions. [2023-04-02 05:04:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 05:04:34,732 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:34,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:04:34,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:04:34,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:34,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 167844480, now seen corresponding path program 1 times [2023-04-02 05:04:34,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:34,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305445973] [2023-04-02 05:04:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:34,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:04:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:04:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:04:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:35,397 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 05:04:35,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:35,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305445973] [2023-04-02 05:04:35,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305445973] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:35,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:35,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:04:35,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447838115] [2023-04-02 05:04:35,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:35,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:04:35,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:35,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:04:35,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:04:35,402 INFO L87 Difference]: Start difference. First operand 305 states and 490 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:38,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:38,333 INFO L93 Difference]: Finished difference Result 531 states and 859 transitions. [2023-04-02 05:04:38,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:04:38,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 145 [2023-04-02 05:04:38,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:38,337 INFO L225 Difference]: With dead ends: 531 [2023-04-02 05:04:38,337 INFO L226 Difference]: Without dead ends: 430 [2023-04-02 05:04:38,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:04:38,338 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2434 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:38,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 94 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 05:04:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-04-02 05:04:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 398. [2023-04-02 05:04:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.6493150684931508) internal successors, (602), 366 states have internal predecessors, (602), 16 states have call successors, (16), 16 states have call predecessors, (16), 16 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-04-02 05:04:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 635 transitions. [2023-04-02 05:04:38,414 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 635 transitions. Word has length 145 [2023-04-02 05:04:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:38,415 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 635 transitions. [2023-04-02 05:04:38,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 635 transitions. [2023-04-02 05:04:38,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 05:04:38,417 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:38,417 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, 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 05:04:38,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:04:38,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:38,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:38,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1537331487, now seen corresponding path program 1 times [2023-04-02 05:04:38,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:38,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243500862] [2023-04-02 05:04:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:04:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 05:04:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:04:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:04:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:38,939 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 05:04:38,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243500862] [2023-04-02 05:04:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243500862] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:38,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:38,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:04:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941325830] [2023-04-02 05:04:38,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:38,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:04:38,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:04:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:04:38,941 INFO L87 Difference]: Start difference. First operand 398 states and 635 transitions. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:41,857 INFO L93 Difference]: Finished difference Result 826 states and 1317 transitions. [2023-04-02 05:04:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:04:41,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 148 [2023-04-02 05:04:41,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:41,861 INFO L225 Difference]: With dead ends: 826 [2023-04-02 05:04:41,861 INFO L226 Difference]: Without dead ends: 632 [2023-04-02 05:04:41,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:04:41,863 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1426 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:41,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 91 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:04:41,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-04-02 05:04:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 576. [2023-04-02 05:04:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 516 states have (on average 1.6511627906976745) internal successors, (852), 520 states have internal predecessors, (852), 28 states have call successors, (28), 28 states have call predecessors, (28), 31 states have return successors, (35), 27 states have call predecessors, (35), 27 states have call successors, (35) [2023-04-02 05:04:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 915 transitions. [2023-04-02 05:04:41,945 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 915 transitions. Word has length 148 [2023-04-02 05:04:41,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:41,945 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 915 transitions. [2023-04-02 05:04:41,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 915 transitions. [2023-04-02 05:04:41,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:04:41,947 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:41,947 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, 1, 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 05:04:41,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:04:41,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:41,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:41,947 INFO L85 PathProgramCache]: Analyzing trace with hash 369474418, now seen corresponding path program 1 times [2023-04-02 05:04:41,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:41,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267989584] [2023-04-02 05:04:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:41,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:04:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:04:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:04:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:42,456 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 05:04:42,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:42,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267989584] [2023-04-02 05:04:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267989584] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:42,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:42,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:04:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534732879] [2023-04-02 05:04:42,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:42,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:04:42,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:04:42,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:04:42,458 INFO L87 Difference]: Start difference. First operand 576 states and 915 transitions. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:45,346 INFO L93 Difference]: Finished difference Result 1400 states and 2217 transitions. [2023-04-02 05:04:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:04:45,347 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 151 [2023-04-02 05:04:45,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:45,352 INFO L225 Difference]: With dead ends: 1400 [2023-04-02 05:04:45,352 INFO L226 Difference]: Without dead ends: 1028 [2023-04-02 05:04:45,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:04:45,357 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1032 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:45,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 97 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:04:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-04-02 05:04:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 918. [2023-04-02 05:04:45,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 802 states have (on average 1.6433915211970074) internal successors, (1318), 814 states have internal predecessors, (1318), 52 states have call successors, (52), 52 states have call predecessors, (52), 63 states have return successors, (75), 51 states have call predecessors, (75), 51 states have call successors, (75) [2023-04-02 05:04:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1445 transitions. [2023-04-02 05:04:45,474 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1445 transitions. Word has length 151 [2023-04-02 05:04:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:45,475 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1445 transitions. [2023-04-02 05:04:45,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1445 transitions. [2023-04-02 05:04:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-02 05:04:45,476 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:45,476 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, 1, 1, 1, 1, 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 05:04:45,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:04:45,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:45,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash 801645152, now seen corresponding path program 1 times [2023-04-02 05:04:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:45,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384451368] [2023-04-02 05:04:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:04:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:04:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 05:04:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:45,954 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 05:04:45,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384451368] [2023-04-02 05:04:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384451368] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:04:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526545386] [2023-04-02 05:04:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:04:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:04:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:04:45,957 INFO L87 Difference]: Start difference. First operand 918 states and 1445 transitions. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:48,672 INFO L93 Difference]: Finished difference Result 2506 states and 3927 transitions. [2023-04-02 05:04:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:04:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 154 [2023-04-02 05:04:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:48,678 INFO L225 Difference]: With dead ends: 2506 [2023-04-02 05:04:48,678 INFO L226 Difference]: Without dead ends: 1792 [2023-04-02 05:04:48,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:04:48,680 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 2770 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:48,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2772 Valid, 87 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:04:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2023-04-02 05:04:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1574. [2023-04-02 05:04:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1342 states have (on average 1.6259314456035767) internal successors, (2182), 1374 states have internal predecessors, (2182), 100 states have call successors, (100), 100 states have call predecessors, (100), 131 states have return successors, (163), 99 states have call predecessors, (163), 99 states have call successors, (163) [2023-04-02 05:04:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2445 transitions. [2023-04-02 05:04:48,887 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2445 transitions. Word has length 154 [2023-04-02 05:04:48,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:48,888 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2445 transitions. [2023-04-02 05:04:48,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2445 transitions. [2023-04-02 05:04:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 05:04:48,890 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:48,890 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, 1, 1, 1, 1, 1, 1, 1, 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 05:04:48,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:04:48,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:48,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1870716042, now seen corresponding path program 1 times [2023-04-02 05:04:48,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:48,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702207870] [2023-04-02 05:04:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:04:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:04:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:04:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:49,716 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 05:04:49,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:49,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702207870] [2023-04-02 05:04:49,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702207870] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:49,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:49,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:04:49,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390619755] [2023-04-02 05:04:49,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:49,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:04:49,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:49,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:04:49,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:04:49,718 INFO L87 Difference]: Start difference. First operand 1574 states and 2445 transitions. Second operand has 16 states, 16 states have (on average 8.6875) internal successors, (139), 11 states have internal predecessors, (139), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:01,948 INFO L93 Difference]: Finished difference Result 11899 states and 19007 transitions. [2023-04-02 05:05:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-04-02 05:05:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.6875) internal successors, (139), 11 states have internal predecessors, (139), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 157 [2023-04-02 05:05:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:01,985 INFO L225 Difference]: With dead ends: 11899 [2023-04-02 05:05:01,985 INFO L226 Difference]: Without dead ends: 10529 [2023-04-02 05:05:01,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2962 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1562, Invalid=7180, Unknown=0, NotChecked=0, Total=8742 [2023-04-02 05:05:01,995 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 6222 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 6014 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6233 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 6275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 6014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:01,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6233 Valid, 201 Invalid, 6275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 6014 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:05:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2023-04-02 05:05:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 9083. [2023-04-02 05:05:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 7600 states have (on average 1.6273684210526316) internal successors, (12368), 7827 states have internal predecessors, (12368), 628 states have call successors, (628), 628 states have call predecessors, (628), 854 states have return successors, (1435), 627 states have call predecessors, (1435), 627 states have call successors, (1435) [2023-04-02 05:05:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 14431 transitions. [2023-04-02 05:05:03,050 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 14431 transitions. Word has length 157 [2023-04-02 05:05:03,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:03,051 INFO L495 AbstractCegarLoop]: Abstraction has 9083 states and 14431 transitions. [2023-04-02 05:05:03,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.6875) internal successors, (139), 11 states have internal predecessors, (139), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:03,051 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 14431 transitions. [2023-04-02 05:05:03,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 05:05:03,057 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:03,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:03,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:05:03,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:03,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:03,058 INFO L85 PathProgramCache]: Analyzing trace with hash 935916441, now seen corresponding path program 1 times [2023-04-02 05:05:03,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:03,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500236114] [2023-04-02 05:05:03,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:03,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:05:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:05:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:05:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:05:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,826 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 05:05:03,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:03,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500236114] [2023-04-02 05:05:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500236114] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:05:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405658933] [2023-04-02 05:05:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:03,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:05:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:05:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:05:03,828 INFO L87 Difference]: Start difference. First operand 9083 states and 14431 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:05:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:19,515 INFO L93 Difference]: Finished difference Result 17699 states and 28318 transitions. [2023-04-02 05:05:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-04-02 05:05:19,517 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 158 [2023-04-02 05:05:19,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:19,559 INFO L225 Difference]: With dead ends: 17699 [2023-04-02 05:05:19,560 INFO L226 Difference]: Without dead ends: 14517 [2023-04-02 05:05:19,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5060 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2051, Invalid=11521, Unknown=0, NotChecked=0, Total=13572 [2023-04-02 05:05:19,572 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 5598 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 8172 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5613 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 8450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 8172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:19,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5613 Valid, 365 Invalid, 8450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 8172 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 05:05:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14517 states. [2023-04-02 05:05:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14517 to 12181. [2023-04-02 05:05:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12181 states, 10230 states have (on average 1.635386119257087) internal successors, (16730), 10509 states have internal predecessors, (16730), 836 states have call successors, (836), 836 states have call predecessors, (836), 1114 states have return successors, (1867), 835 states have call predecessors, (1867), 835 states have call successors, (1867) [2023-04-02 05:05:20,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12181 states to 12181 states and 19433 transitions. [2023-04-02 05:05:20,889 INFO L78 Accepts]: Start accepts. Automaton has 12181 states and 19433 transitions. Word has length 158 [2023-04-02 05:05:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:20,890 INFO L495 AbstractCegarLoop]: Abstraction has 12181 states and 19433 transitions. [2023-04-02 05:05:20,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:05:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12181 states and 19433 transitions. [2023-04-02 05:05:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 05:05:20,895 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:20,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:20,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:05:20,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:20,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash 988585494, now seen corresponding path program 1 times [2023-04-02 05:05:20,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:20,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753648370] [2023-04-02 05:05:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:20,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:05:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:05:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:05:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:21,682 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 05:05:21,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:21,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753648370] [2023-04-02 05:05:21,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753648370] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:21,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:21,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:05:21,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046832705] [2023-04-02 05:05:21,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:21,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:05:21,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:21,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:05:21,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:05:21,685 INFO L87 Difference]: Start difference. First operand 12181 states and 19433 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:05:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:36,933 INFO L93 Difference]: Finished difference Result 22458 states and 36054 transitions. [2023-04-02 05:05:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-04-02 05:05:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 158 [2023-04-02 05:05:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:36,995 INFO L225 Difference]: With dead ends: 22458 [2023-04-02 05:05:36,995 INFO L226 Difference]: Without dead ends: 17355 [2023-04-02 05:05:37,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4865 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1995, Invalid=11115, Unknown=0, NotChecked=0, Total=13110 [2023-04-02 05:05:37,012 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 7476 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6265 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7491 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 6630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 6265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:37,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7491 Valid, 257 Invalid, 6630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 6265 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 05:05:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17355 states. [2023-04-02 05:05:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17355 to 14219. [2023-04-02 05:05:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14219 states, 11976 states have (on average 1.6422845691382766) internal successors, (19668), 12291 states have internal predecessors, (19668), 964 states have call successors, (964), 964 states have call predecessors, (964), 1278 states have return successors, (2117), 963 states have call predecessors, (2117), 963 states have call successors, (2117) [2023-04-02 05:05:38,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 22749 transitions. [2023-04-02 05:05:38,627 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 22749 transitions. Word has length 158 [2023-04-02 05:05:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:38,627 INFO L495 AbstractCegarLoop]: Abstraction has 14219 states and 22749 transitions. [2023-04-02 05:05:38,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:05:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 22749 transitions. [2023-04-02 05:05:38,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 05:05:38,634 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:38,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:38,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:05:38,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:38,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:38,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1012233401, now seen corresponding path program 1 times [2023-04-02 05:05:38,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:38,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581351127] [2023-04-02 05:05:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:38,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:05:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:05:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:05:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,222 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 05:05:39,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:39,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581351127] [2023-04-02 05:05:39,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581351127] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:39,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:39,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:39,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186088827] [2023-04-02 05:05:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:39,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:39,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:39,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:39,224 INFO L87 Difference]: Start difference. First operand 14219 states and 22749 transitions. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:47,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:47,101 INFO L93 Difference]: Finished difference Result 46255 states and 74534 transitions. [2023-04-02 05:05:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:05:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 158 [2023-04-02 05:05:47,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:47,193 INFO L225 Difference]: With dead ends: 46255 [2023-04-02 05:05:47,193 INFO L226 Difference]: Without dead ends: 32240 [2023-04-02 05:05:47,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:05:47,225 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1722 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 3756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:47,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 150 Invalid, 3756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3697 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 05:05:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32240 states. [2023-04-02 05:05:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32240 to 28072. [2023-04-02 05:05:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28072 states, 23540 states have (on average 1.6355989804587936) internal successors, (38502), 24224 states have internal predecessors, (38502), 1924 states have call successors, (1924), 1924 states have call predecessors, (1924), 2607 states have return successors, (4471), 1923 states have call predecessors, (4471), 1923 states have call successors, (4471) [2023-04-02 05:05:50,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28072 states to 28072 states and 44897 transitions. [2023-04-02 05:05:50,069 INFO L78 Accepts]: Start accepts. Automaton has 28072 states and 44897 transitions. Word has length 158 [2023-04-02 05:05:50,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:50,069 INFO L495 AbstractCegarLoop]: Abstraction has 28072 states and 44897 transitions. [2023-04-02 05:05:50,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28072 states and 44897 transitions. [2023-04-02 05:05:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 05:05:50,077 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:50,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:50,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:05:50,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:50,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:50,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1953502146, now seen corresponding path program 1 times [2023-04-02 05:05:50,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:50,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445087085] [2023-04-02 05:05:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:50,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:05:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:05:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:05:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,783 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 05:05:50,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:50,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445087085] [2023-04-02 05:05:50,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445087085] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:50,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:50,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:05:50,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153058016] [2023-04-02 05:05:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:50,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:05:50,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:05:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:05:50,785 INFO L87 Difference]: Start difference. First operand 28072 states and 44897 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:07,428 INFO L93 Difference]: Finished difference Result 62120 states and 99861 transitions. [2023-04-02 05:06:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-04-02 05:06:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 158 [2023-04-02 05:06:07,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:07,566 INFO L225 Difference]: With dead ends: 62120 [2023-04-02 05:06:07,566 INFO L226 Difference]: Without dead ends: 45882 [2023-04-02 05:06:07,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4185 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1809, Invalid=9747, Unknown=0, NotChecked=0, Total=11556 [2023-04-02 05:06:07,610 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 4745 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 7437 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 7679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 7437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:07,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 341 Invalid, 7679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 7437 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-04-02 05:06:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45882 states. [2023-04-02 05:06:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45882 to 38746. [2023-04-02 05:06:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38746 states, 32649 states have (on average 1.647094857422892) internal successors, (53776), 33554 states have internal predecessors, (53776), 2596 states have call successors, (2596), 2596 states have call predecessors, (2596), 3500 states have return successors, (5903), 2595 states have call predecessors, (5903), 2595 states have call successors, (5903) [2023-04-02 05:06:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38746 states to 38746 states and 62275 transitions. [2023-04-02 05:06:11,384 INFO L78 Accepts]: Start accepts. Automaton has 38746 states and 62275 transitions. Word has length 158 [2023-04-02 05:06:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:11,384 INFO L495 AbstractCegarLoop]: Abstraction has 38746 states and 62275 transitions. [2023-04-02 05:06:11,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 38746 states and 62275 transitions. [2023-04-02 05:06:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 05:06:11,393 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:11,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:11,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:06:11,393 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:11,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash 197426279, now seen corresponding path program 1 times [2023-04-02 05:06:11,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:11,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791959938] [2023-04-02 05:06:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:11,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 05:06:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:06:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:06:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:06:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:12,084 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 05:06:12,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:12,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791959938] [2023-04-02 05:06:12,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791959938] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:12,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:12,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:06:12,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757742017] [2023-04-02 05:06:12,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:12,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:06:12,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:12,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:06:12,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:06:12,086 INFO L87 Difference]: Start difference. First operand 38746 states and 62275 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:30,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:30,377 INFO L93 Difference]: Finished difference Result 66097 states and 106829 transitions. [2023-04-02 05:06:30,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-04-02 05:06:30,378 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 158 [2023-04-02 05:06:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:30,500 INFO L225 Difference]: With dead ends: 66097 [2023-04-02 05:06:30,500 INFO L226 Difference]: Without dead ends: 48066 [2023-04-02 05:06:30,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4745 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1974, Invalid=10908, Unknown=0, NotChecked=0, Total=12882 [2023-04-02 05:06:30,541 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 3448 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 9378 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 9535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 9378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:30,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3466 Valid, 391 Invalid, 9535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 9378 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 05:06:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48066 states. [2023-04-02 05:06:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48066 to 38810. [2023-04-02 05:06:34,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38810 states, 32729 states have (on average 1.6493629502887348) internal successors, (53982), 33670 states have internal predecessors, (53982), 2570 states have call successors, (2570), 2570 states have call predecessors, (2570), 3510 states have return successors, (5835), 2569 states have call predecessors, (5835), 2569 states have call successors, (5835) [2023-04-02 05:06:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38810 states to 38810 states and 62387 transitions. [2023-04-02 05:06:34,178 INFO L78 Accepts]: Start accepts. Automaton has 38810 states and 62387 transitions. Word has length 158 [2023-04-02 05:06:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:34,178 INFO L495 AbstractCegarLoop]: Abstraction has 38810 states and 62387 transitions. [2023-04-02 05:06:34,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:34,179 INFO L276 IsEmpty]: Start isEmpty. Operand 38810 states and 62387 transitions. [2023-04-02 05:06:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 05:06:34,188 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:34,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:34,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:06:34,188 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:34,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2074568935, now seen corresponding path program 1 times [2023-04-02 05:06:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525513789] [2023-04-02 05:06:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:06:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:06:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:06:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 05:06:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:34,994 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 05:06:34,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525513789] [2023-04-02 05:06:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525513789] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:34,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:06:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487064850] [2023-04-02 05:06:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:34,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:06:34,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:06:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:06:34,996 INFO L87 Difference]: Start difference. First operand 38810 states and 62387 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:41,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:41,355 INFO L93 Difference]: Finished difference Result 75480 states and 122235 transitions. [2023-04-02 05:06:41,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:06:41,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 159 [2023-04-02 05:06:41,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:41,520 INFO L225 Difference]: With dead ends: 75480 [2023-04-02 05:06:41,520 INFO L226 Difference]: Without dead ends: 46820 [2023-04-02 05:06:41,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:06:41,629 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 955 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 82 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:06:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46820 states. [2023-04-02 05:06:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46820 to 38938. [2023-04-02 05:06:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38938 states, 32857 states have (on average 1.6468332471010743) internal successors, (54110), 33798 states have internal predecessors, (54110), 2570 states have call successors, (2570), 2570 states have call predecessors, (2570), 3510 states have return successors, (5707), 2569 states have call predecessors, (5707), 2569 states have call successors, (5707) [2023-04-02 05:06:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38938 states to 38938 states and 62387 transitions. [2023-04-02 05:06:45,324 INFO L78 Accepts]: Start accepts. Automaton has 38938 states and 62387 transitions. Word has length 159 [2023-04-02 05:06:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:45,324 INFO L495 AbstractCegarLoop]: Abstraction has 38938 states and 62387 transitions. [2023-04-02 05:06:45,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:45,325 INFO L276 IsEmpty]: Start isEmpty. Operand 38938 states and 62387 transitions. [2023-04-02 05:06:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 05:06:45,331 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:45,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:45,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:06:45,331 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:45,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 377258934, now seen corresponding path program 1 times [2023-04-02 05:06:45,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:45,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38110345] [2023-04-02 05:06:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:45,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:06:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:06:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:06:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 05:06:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:45,942 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 05:06:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38110345] [2023-04-02 05:06:45,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38110345] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:45,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:45,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:06:45,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561907183] [2023-04-02 05:06:45,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:45,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:06:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:06:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:06:45,944 INFO L87 Difference]: Start difference. First operand 38938 states and 62387 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:52,305 INFO L93 Difference]: Finished difference Result 75848 states and 122349 transitions. [2023-04-02 05:06:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:06:52,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 159 [2023-04-02 05:06:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:52,453 INFO L225 Difference]: With dead ends: 75848 [2023-04-02 05:06:52,453 INFO L226 Difference]: Without dead ends: 47172 [2023-04-02 05:06:52,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:06:52,494 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2259 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:52,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 80 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:06:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47172 states. [2023-04-02 05:06:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47172 to 39074. [2023-04-02 05:06:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39074 states, 32993 states have (on average 1.6441669445033795) internal successors, (54246), 33934 states have internal predecessors, (54246), 2570 states have call successors, (2570), 2570 states have call predecessors, (2570), 3510 states have return successors, (5571), 2569 states have call predecessors, (5571), 2569 states have call successors, (5571) [2023-04-02 05:06:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39074 states to 39074 states and 62387 transitions. [2023-04-02 05:06:56,350 INFO L78 Accepts]: Start accepts. Automaton has 39074 states and 62387 transitions. Word has length 159 [2023-04-02 05:06:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:56,351 INFO L495 AbstractCegarLoop]: Abstraction has 39074 states and 62387 transitions. [2023-04-02 05:06:56,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 39074 states and 62387 transitions. [2023-04-02 05:06:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 05:06:56,355 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:56,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:56,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:06:56,355 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:56,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash 117390369, now seen corresponding path program 1 times [2023-04-02 05:06:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709230385] [2023-04-02 05:06:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:06:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:06:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:06:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:06:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:56,909 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 05:06:56,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:56,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709230385] [2023-04-02 05:06:56,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709230385] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:56,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:56,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:06:56,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202029217] [2023-04-02 05:06:56,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:56,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:06:56,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:06:56,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:06:56,911 INFO L87 Difference]: Start difference. First operand 39074 states and 62387 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:07:08,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:08,640 INFO L93 Difference]: Finished difference Result 126955 states and 204170 transitions. [2023-04-02 05:07:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:07:08,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 159 [2023-04-02 05:07:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:08,883 INFO L225 Difference]: With dead ends: 126955 [2023-04-02 05:07:08,883 INFO L226 Difference]: Without dead ends: 88085 [2023-04-02 05:07:08,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:07:08,940 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 2940 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 3462 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:08,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 152 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3462 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 05:07:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88085 states. [2023-04-02 05:07:15,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88085 to 76728. [2023-04-02 05:07:16,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76728 states, 64587 states have (on average 1.6412126279282209) internal successors, (106001), 66574 states have internal predecessors, (106001), 5077 states have call successors, (5077), 5077 states have call predecessors, (5077), 7063 states have return successors, (11704), 5076 states have call predecessors, (11704), 5076 states have call successors, (11704) [2023-04-02 05:07:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76728 states to 76728 states and 122782 transitions. [2023-04-02 05:07:16,340 INFO L78 Accepts]: Start accepts. Automaton has 76728 states and 122782 transitions. Word has length 159 [2023-04-02 05:07:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:16,341 INFO L495 AbstractCegarLoop]: Abstraction has 76728 states and 122782 transitions. [2023-04-02 05:07:16,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:07:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 76728 states and 122782 transitions. [2023-04-02 05:07:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 05:07:16,345 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:16,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:16,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:07:16,345 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:16,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:16,346 INFO L85 PathProgramCache]: Analyzing trace with hash 679858300, now seen corresponding path program 1 times [2023-04-02 05:07:16,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:16,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107594888] [2023-04-02 05:07:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:16,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:07:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:07:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 05:07:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:07:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:07:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:07:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:16,829 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 05:07:16,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107594888] [2023-04-02 05:07:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107594888] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:16,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:16,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:07:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836989853] [2023-04-02 05:07:16,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:16,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:07:16,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:16,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:07:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:07:16,830 INFO L87 Difference]: Start difference. First operand 76728 states and 122782 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 7 states have internal predecessors, (141), 4 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:07:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:30,455 INFO L93 Difference]: Finished difference Result 160160 states and 258257 transitions. [2023-04-02 05:07:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 05:07:30,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 7 states have internal predecessors, (141), 4 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 159 [2023-04-02 05:07:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:30,822 INFO L225 Difference]: With dead ends: 160160 [2023-04-02 05:07:30,822 INFO L226 Difference]: Without dead ends: 128298 [2023-04-02 05:07:30,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:07:30,896 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 3130 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:30,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 133 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 05:07:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128298 states. [2023-04-02 05:07:40,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128298 to 101577. [2023-04-02 05:07:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101577 states, 85518 states have (on average 1.6433616314693982) internal successors, (140537), 88251 states have internal predecessors, (140537), 6663 states have call successors, (6663), 6663 states have call predecessors, (6663), 9395 states have return successors, (15306), 6662 states have call predecessors, (15306), 6662 states have call successors, (15306) [2023-04-02 05:07:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101577 states to 101577 states and 162506 transitions. [2023-04-02 05:07:40,720 INFO L78 Accepts]: Start accepts. Automaton has 101577 states and 162506 transitions. Word has length 159 [2023-04-02 05:07:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:40,721 INFO L495 AbstractCegarLoop]: Abstraction has 101577 states and 162506 transitions. [2023-04-02 05:07:40,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 7 states have internal predecessors, (141), 4 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:07:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 101577 states and 162506 transitions. [2023-04-02 05:07:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 05:07:40,725 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:40,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:40,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:07:40,725 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:40,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:40,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1621127045, now seen corresponding path program 1 times [2023-04-02 05:07:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818847745] [2023-04-02 05:07:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:07:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:07:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 05:07:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:07:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 05:07:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 05:07:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:41,286 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 05:07:41,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818847745] [2023-04-02 05:07:41,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818847745] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:41,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:41,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:07:41,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309533634] [2023-04-02 05:07:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:41,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:07:41,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:07:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:07:41,288 INFO L87 Difference]: Start difference. First operand 101577 states and 162506 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:07:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:53,319 INFO L93 Difference]: Finished difference Result 200374 states and 321309 transitions. [2023-04-02 05:07:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:07:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 159 [2023-04-02 05:07:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:53,706 INFO L225 Difference]: With dead ends: 200374 [2023-04-02 05:07:53,706 INFO L226 Difference]: Without dead ends: 119845 [2023-04-02 05:07:53,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:07:53,802 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 871 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:53,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 83 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:07:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119845 states. [2023-04-02 05:08:03,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119845 to 101577. [2023-04-02 05:08:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101577 states, 85518 states have (on average 1.6433616314693982) internal successors, (140537), 88251 states have internal predecessors, (140537), 6663 states have call successors, (6663), 6663 states have call predecessors, (6663), 9395 states have return successors, (15094), 6662 states have call predecessors, (15094), 6662 states have call successors, (15094) [2023-04-02 05:08:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101577 states to 101577 states and 162294 transitions. [2023-04-02 05:08:03,610 INFO L78 Accepts]: Start accepts. Automaton has 101577 states and 162294 transitions. Word has length 159 [2023-04-02 05:08:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:03,610 INFO L495 AbstractCegarLoop]: Abstraction has 101577 states and 162294 transitions. [2023-04-02 05:08:03,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:08:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 101577 states and 162294 transitions. [2023-04-02 05:08:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:08:03,613 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:03,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:03,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 05:08:03,613 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:03,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1904624784, now seen corresponding path program 1 times [2023-04-02 05:08:03,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:03,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851726452] [2023-04-02 05:08:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:03,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:08:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:08:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:08:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:08:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:08:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:08:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,345 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 05:08:04,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:04,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851726452] [2023-04-02 05:08:04,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851726452] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:04,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:08:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510678647] [2023-04-02 05:08:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:04,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:08:04,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:08:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:08:04,347 INFO L87 Difference]: Start difference. First operand 101577 states and 162294 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 6 states have internal predecessors, (142), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8)