/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_lcr.7.1.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:20:05,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:20:05,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:20:05,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:20:05,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:20:05,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:20:05,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:20:05,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:20:05,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:20:05,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:20:05,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:20:05,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:20:05,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:20:05,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:20:05,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:20:05,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:20:05,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:20:05,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:20:05,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:20:05,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:20:05,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:20:05,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:20:05,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:20:05,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:20:05,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:20:05,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:20:05,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:20:05,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:20:05,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:20:05,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:20:05,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:20:05,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:20:05,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:20:05,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:20:05,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:20:05,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:20:05,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:20:05,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:20:05,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:20:05,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:20:05,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:20:05,367 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 05:20:05,386 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:20:05,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:20:05,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:20:05,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:20:05,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:20:05,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:20:05,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:20:05,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:20:05,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:20:05,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:20:05,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:20:05,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:20:05,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:20:05,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:20:05,395 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:20:05,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:20:05,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:20:05,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:20:05,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:20:05,579 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:20:05,579 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:20:05,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-04-02 05:20:06,589 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:20:06,725 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:20:06,726 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-04-02 05:20:06,733 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121e3a253/5993d195e8c240f6934c8348832898cf/FLAG91099fc68 [2023-04-02 05:20:06,745 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121e3a253/5993d195e8c240f6934c8348832898cf [2023-04-02 05:20:06,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:20:06,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:20:06,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:20:06,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:20:06,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:20:06,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:20:06" (1/1) ... [2023-04-02 05:20:06,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d7e65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:06, skipping insertion in model container [2023-04-02 05:20:06,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:20:06" (1/1) ... [2023-04-02 05:20:06,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:20:06,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:20:06,981 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_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2023-04-02 05:20:06,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:20:06,997 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:20:07,060 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_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2023-04-02 05:20:07,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:20:07,074 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:20:07,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07 WrapperNode [2023-04-02 05:20:07,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:20:07,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:20:07,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:20:07,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:20:07,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:20:07,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:20:07,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:20:07,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:20:07,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (1/1) ... [2023-04-02 05:20:07,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:20:07,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:20:07,176 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 05:20:07,185 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 05:20:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:20:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:20:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:20:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:20:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:20:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:20:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:20:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:20:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:20:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-04-02 05:20:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2023-04-02 05:20:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:20:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:20:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:20:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:20:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:20:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:20:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:20:07,351 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:20:07,353 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:20:07,777 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:20:07,783 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:20:07,783 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:20:07,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:20:07 BoogieIcfgContainer [2023-04-02 05:20:07,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:20:07,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:20:07,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:20:07,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:20:07,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:20:06" (1/3) ... [2023-04-02 05:20:07,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a21fc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:20:07, skipping insertion in model container [2023-04-02 05:20:07,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:07" (2/3) ... [2023-04-02 05:20:07,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a21fc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:20:07, skipping insertion in model container [2023-04-02 05:20:07,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:20:07" (3/3) ... [2023-04-02 05:20:07,795 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-04-02 05:20:07,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:20:07,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:20:07,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:20:07,859 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;@5e3a8458, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:20:07,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:20:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 129 states have (on average 1.682170542635659) internal successors, (217), 130 states have internal predecessors, (217), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-04-02 05:20:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:20:07,876 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:07,877 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] [2023-04-02 05:20:07,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:07,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash 13623360, now seen corresponding path program 1 times [2023-04-02 05:20:07,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:07,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182330076] [2023-04-02 05:20:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:07,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:20:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:20:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:20:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:20:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:20:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 05:20:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:20:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:20:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:20:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:08,778 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 05:20:08,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:08,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182330076] [2023-04-02 05:20:08,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182330076] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:08,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:08,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:20:08,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311161260] [2023-04-02 05:20:08,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:08,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:20:08,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:08,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:20:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:20:08,817 INFO L87 Difference]: Start difference. First operand has 157 states, 129 states have (on average 1.682170542635659) internal successors, (217), 130 states have internal predecessors, (217), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:20:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:20:10,812 INFO L93 Difference]: Finished difference Result 267 states and 403 transitions. [2023-04-02 05:20:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:20:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 67 [2023-04-02 05:20:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:20:10,825 INFO L225 Difference]: With dead ends: 267 [2023-04-02 05:20:10,825 INFO L226 Difference]: Without dead ends: 165 [2023-04-02 05:20:10,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:20:10,831 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1092 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:20:10,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 226 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:20:10,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-04-02 05:20:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2023-04-02 05:20:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 126 states have internal predecessors, (160), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-04-02 05:20:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2023-04-02 05:20:10,885 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 67 [2023-04-02 05:20:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:20:10,885 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2023-04-02 05:20:10,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:20:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2023-04-02 05:20:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 05:20:10,888 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:10,888 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] [2023-04-02 05:20:10,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:20:10,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:10,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1997843926, now seen corresponding path program 1 times [2023-04-02 05:20:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237277534] [2023-04-02 05:20:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:10,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:20:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:20:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:20:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:20:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:20:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:20:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:20:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:20:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:20:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:11,797 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 05:20:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:11,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237277534] [2023-04-02 05:20:11,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237277534] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:11,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:11,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:20:11,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938167068] [2023-04-02 05:20:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:11,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:20:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:11,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:20:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:20:11,801 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:20:33,152 INFO L93 Difference]: Finished difference Result 1975 states and 2826 transitions. [2023-04-02 05:20:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-04-02 05:20:33,153 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2023-04-02 05:20:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:20:33,164 INFO L225 Difference]: With dead ends: 1975 [2023-04-02 05:20:33,164 INFO L226 Difference]: Without dead ends: 1891 [2023-04-02 05:20:33,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21894 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=7424, Invalid=48982, Unknown=0, NotChecked=0, Total=56406 [2023-04-02 05:20:33,179 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 4301 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 10120 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4318 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 10553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 10120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:20:33,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4318 Valid, 682 Invalid, 10553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 10120 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 05:20:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2023-04-02 05:20:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 596. [2023-04-02 05:20:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 466 states have (on average 1.407725321888412) internal successors, (656), 480 states have internal predecessors, (656), 58 states have call successors, (58), 58 states have call predecessors, (58), 71 states have return successors, (103), 57 states have call predecessors, (103), 57 states have call successors, (103) [2023-04-02 05:20:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 817 transitions. [2023-04-02 05:20:33,323 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 817 transitions. Word has length 116 [2023-04-02 05:20:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:20:33,325 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 817 transitions. [2023-04-02 05:20:33,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 817 transitions. [2023-04-02 05:20:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 05:20:33,333 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:33,334 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] [2023-04-02 05:20:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:20:33,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:33,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:33,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1986891130, now seen corresponding path program 1 times [2023-04-02 05:20:33,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:33,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373015743] [2023-04-02 05:20:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:33,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:20:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:20:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:20:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:20:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:20:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:20:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:20:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:20:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:20:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:33,761 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 05:20:33,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373015743] [2023-04-02 05:20:33,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373015743] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:33,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:33,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:20:33,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262022569] [2023-04-02 05:20:33,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:33,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:20:33,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:33,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:20:33,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:20:33,765 INFO L87 Difference]: Start difference. First operand 596 states and 817 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:20:36,124 INFO L93 Difference]: Finished difference Result 1871 states and 2636 transitions. [2023-04-02 05:20:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:20:36,125 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-04-02 05:20:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:20:36,130 INFO L225 Difference]: With dead ends: 1871 [2023-04-02 05:20:36,130 INFO L226 Difference]: Without dead ends: 1343 [2023-04-02 05:20:36,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:20:36,133 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1826 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:20:36,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 130 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:20:36,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2023-04-02 05:20:36,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1339. [2023-04-02 05:20:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1023 states have (on average 1.4173998044965788) internal successors, (1450), 1061 states have internal predecessors, (1450), 139 states have call successors, (139), 139 states have call predecessors, (139), 176 states have return successors, (272), 138 states have call predecessors, (272), 138 states have call successors, (272) [2023-04-02 05:20:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1861 transitions. [2023-04-02 05:20:36,304 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1861 transitions. Word has length 118 [2023-04-02 05:20:36,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:20:36,308 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1861 transitions. [2023-04-02 05:20:36,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1861 transitions. [2023-04-02 05:20:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 05:20:36,318 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:36,318 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] [2023-04-02 05:20:36,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:20:36,318 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:36,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 699188674, now seen corresponding path program 1 times [2023-04-02 05:20:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:36,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903388841] [2023-04-02 05:20:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:36,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:20:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:20:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:36,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:20:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:20:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:20:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:20:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:20:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:20:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:20:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:37,217 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 05:20:37,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:37,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903388841] [2023-04-02 05:20:37,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903388841] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:37,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:37,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:20:37,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417741346] [2023-04-02 05:20:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:37,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:20:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:37,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:20:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:20:37,219 INFO L87 Difference]: Start difference. First operand 1339 states and 1861 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:00,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:00,384 INFO L93 Difference]: Finished difference Result 7412 states and 10649 transitions. [2023-04-02 05:21:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2023-04-02 05:21:00,385 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-04-02 05:21:00,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:00,406 INFO L225 Difference]: With dead ends: 7412 [2023-04-02 05:21:00,406 INFO L226 Difference]: Without dead ends: 6141 [2023-04-02 05:21:00,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21730 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=7284, Invalid=47706, Unknown=0, NotChecked=0, Total=54990 [2023-04-02 05:21:00,421 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 4973 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 8884 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 9458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 8884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:00,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 656 Invalid, 9458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 8884 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-02 05:21:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2023-04-02 05:21:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 6045. [2023-04-02 05:21:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6045 states, 4616 states have (on average 1.4525563258232235) internal successors, (6705), 4725 states have internal predecessors, (6705), 660 states have call successors, (660), 660 states have call predecessors, (660), 768 states have return successors, (1324), 659 states have call predecessors, (1324), 659 states have call successors, (1324) [2023-04-02 05:21:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6045 states to 6045 states and 8689 transitions. [2023-04-02 05:21:01,390 INFO L78 Accepts]: Start accepts. Automaton has 6045 states and 8689 transitions. Word has length 118 [2023-04-02 05:21:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:01,391 INFO L495 AbstractCegarLoop]: Abstraction has 6045 states and 8689 transitions. [2023-04-02 05:21:01,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6045 states and 8689 transitions. [2023-04-02 05:21:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-04-02 05:21:01,395 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:01,395 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] [2023-04-02 05:21:01,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:21:01,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:01,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2093451058, now seen corresponding path program 1 times [2023-04-02 05:21:01,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:01,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702327142] [2023-04-02 05:21:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:01,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:02,002 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 05:21:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702327142] [2023-04-02 05:21:02,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702327142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:02,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:02,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 05:21:02,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387060170] [2023-04-02 05:21:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:02,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:21:02,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:21:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:21:02,004 INFO L87 Difference]: Start difference. First operand 6045 states and 8689 transitions. Second operand has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:05,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:05,057 INFO L93 Difference]: Finished difference Result 6499 states and 9731 transitions. [2023-04-02 05:21:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:21:05,059 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-04-02 05:21:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:05,083 INFO L225 Difference]: With dead ends: 6499 [2023-04-02 05:21:05,083 INFO L226 Difference]: Without dead ends: 6497 [2023-04-02 05:21:05,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:21:05,086 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 604 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:05,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 374 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:21:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2023-04-02 05:21:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6108. [2023-04-02 05:21:06,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4658 states have (on average 1.445684843280378) internal successors, (6734), 4774 states have internal predecessors, (6734), 667 states have call successors, (667), 667 states have call predecessors, (667), 782 states have return successors, (1345), 666 states have call predecessors, (1345), 666 states have call successors, (1345) [2023-04-02 05:21:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8746 transitions. [2023-04-02 05:21:06,096 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8746 transitions. Word has length 119 [2023-04-02 05:21:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:06,096 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 8746 transitions. [2023-04-02 05:21:06,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8746 transitions. [2023-04-02 05:21:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:06,101 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:06,101 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] [2023-04-02 05:21:06,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:21:06,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:06,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash -327103966, now seen corresponding path program 1 times [2023-04-02 05:21:06,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:06,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379178882] [2023-04-02 05:21:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 05:21:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:21:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:21:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:21:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:06,537 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 05:21:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:06,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379178882] [2023-04-02 05:21:06,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379178882] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:06,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:06,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994745015] [2023-04-02 05:21:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:06,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:06,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:06,538 INFO L87 Difference]: Start difference. First operand 6108 states and 8746 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:10,745 INFO L93 Difference]: Finished difference Result 12421 states and 17880 transitions. [2023-04-02 05:21:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:10,774 INFO L225 Difference]: With dead ends: 12421 [2023-04-02 05:21:10,774 INFO L226 Difference]: Without dead ends: 7986 [2023-04-02 05:21:10,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:10,786 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2232 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:10,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 90 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:21:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2023-04-02 05:21:11,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 7047. [2023-04-02 05:21:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 5377 states have (on average 1.4554584340710432) internal successors, (7826), 5526 states have internal predecessors, (7826), 761 states have call successors, (761), 761 states have call predecessors, (761), 908 states have return successors, (1536), 759 states have call predecessors, (1536), 760 states have call successors, (1536) [2023-04-02 05:21:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 10123 transitions. [2023-04-02 05:21:12,014 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 10123 transitions. Word has length 120 [2023-04-02 05:21:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:12,014 INFO L495 AbstractCegarLoop]: Abstraction has 7047 states and 10123 transitions. [2023-04-02 05:21:12,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 10123 transitions. [2023-04-02 05:21:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:12,017 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:12,017 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] [2023-04-02 05:21:12,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:21:12,018 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:12,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1183870386, now seen corresponding path program 1 times [2023-04-02 05:21:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:12,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897690900] [2023-04-02 05:21:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:21:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:21:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:21:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:12,434 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 05:21:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897690900] [2023-04-02 05:21:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897690900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:12,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:12,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938089282] [2023-04-02 05:21:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:12,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:12,435 INFO L87 Difference]: Start difference. First operand 7047 states and 10123 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:17,080 INFO L93 Difference]: Finished difference Result 18478 states and 26574 transitions. [2023-04-02 05:21:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:17,119 INFO L225 Difference]: With dead ends: 18478 [2023-04-02 05:21:17,119 INFO L226 Difference]: Without dead ends: 11505 [2023-04-02 05:21:17,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:17,133 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1612 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:17,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 91 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:21:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11505 states. [2023-04-02 05:21:18,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11505 to 6995. [2023-04-02 05:21:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6995 states, 5336 states have (on average 1.4544602698650675) internal successors, (7761), 5484 states have internal predecessors, (7761), 756 states have call successors, (756), 756 states have call predecessors, (756), 902 states have return successors, (1526), 754 states have call predecessors, (1526), 755 states have call successors, (1526) [2023-04-02 05:21:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6995 states to 6995 states and 10043 transitions. [2023-04-02 05:21:18,308 INFO L78 Accepts]: Start accepts. Automaton has 6995 states and 10043 transitions. Word has length 120 [2023-04-02 05:21:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:18,309 INFO L495 AbstractCegarLoop]: Abstraction has 6995 states and 10043 transitions. [2023-04-02 05:21:18,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 6995 states and 10043 transitions. [2023-04-02 05:21:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:18,311 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:18,311 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] [2023-04-02 05:21:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:21:18,311 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:18,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1646636126, now seen corresponding path program 1 times [2023-04-02 05:21:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:18,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831306340] [2023-04-02 05:21:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:21:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:21:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,705 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 05:21:18,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:18,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831306340] [2023-04-02 05:21:18,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831306340] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:18,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:18,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:18,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882688253] [2023-04-02 05:21:18,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:18,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:18,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:18,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:18,706 INFO L87 Difference]: Start difference. First operand 6995 states and 10043 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:23,324 INFO L93 Difference]: Finished difference Result 17534 states and 25152 transitions. [2023-04-02 05:21:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:23,350 INFO L225 Difference]: With dead ends: 17534 [2023-04-02 05:21:23,350 INFO L226 Difference]: Without dead ends: 10633 [2023-04-02 05:21:23,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:23,362 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2320 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:23,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 85 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:21:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2023-04-02 05:21:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 6962. [2023-04-02 05:21:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 5310 states have (on average 1.4536723163841807) internal successors, (7719), 5457 states have internal predecessors, (7719), 753 states have call successors, (753), 753 states have call predecessors, (753), 898 states have return successors, (1521), 751 states have call predecessors, (1521), 752 states have call successors, (1521) [2023-04-02 05:21:24,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 9993 transitions. [2023-04-02 05:21:24,651 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 9993 transitions. Word has length 120 [2023-04-02 05:21:24,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:24,651 INFO L495 AbstractCegarLoop]: Abstraction has 6962 states and 9993 transitions. [2023-04-02 05:21:24,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:24,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 9993 transitions. [2023-04-02 05:21:24,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:24,653 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:24,654 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] [2023-04-02 05:21:24,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:21:24,654 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:24,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:24,654 INFO L85 PathProgramCache]: Analyzing trace with hash 196539058, now seen corresponding path program 1 times [2023-04-02 05:21:24,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:24,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267160922] [2023-04-02 05:21:24,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:24,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:21:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:25,038 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 05:21:25,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267160922] [2023-04-02 05:21:25,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267160922] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:25,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:25,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:25,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650315290] [2023-04-02 05:21:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:25,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:25,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:25,040 INFO L87 Difference]: Start difference. First operand 6962 states and 9993 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:29,542 INFO L93 Difference]: Finished difference Result 16639 states and 23814 transitions. [2023-04-02 05:21:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:29,593 INFO L225 Difference]: With dead ends: 16639 [2023-04-02 05:21:29,594 INFO L226 Difference]: Without dead ends: 9789 [2023-04-02 05:21:29,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:29,606 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1828 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:29,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 90 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:21:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2023-04-02 05:21:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 6950. [2023-04-02 05:21:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 5300 states have (on average 1.4530188679245284) internal successors, (7701), 5447 states have internal predecessors, (7701), 752 states have call successors, (752), 752 states have call predecessors, (752), 897 states have return successors, (1520), 750 states have call predecessors, (1520), 751 states have call successors, (1520) [2023-04-02 05:21:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9973 transitions. [2023-04-02 05:21:30,836 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9973 transitions. Word has length 120 [2023-04-02 05:21:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:30,836 INFO L495 AbstractCegarLoop]: Abstraction has 6950 states and 9973 transitions. [2023-04-02 05:21:30,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9973 transitions. [2023-04-02 05:21:30,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:30,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:30,838 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] [2023-04-02 05:21:30,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:21:30,838 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:30,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1625404450, now seen corresponding path program 1 times [2023-04-02 05:21:30,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:30,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897357943] [2023-04-02 05:21:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:30,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:31,204 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 05:21:31,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:31,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897357943] [2023-04-02 05:21:31,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897357943] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:31,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373625189] [2023-04-02 05:21:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:31,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:31,205 INFO L87 Difference]: Start difference. First operand 6950 states and 9973 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:35,677 INFO L93 Difference]: Finished difference Result 15795 states and 22558 transitions. [2023-04-02 05:21:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:35,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:35,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:35,696 INFO L225 Difference]: With dead ends: 15795 [2023-04-02 05:21:35,697 INFO L226 Difference]: Without dead ends: 8975 [2023-04-02 05:21:35,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:35,707 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1980 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:35,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 90 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:21:35,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8975 states. [2023-04-02 05:21:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8975 to 6959. [2023-04-02 05:21:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 5306 states have (on average 1.4525065963060686) internal successors, (7707), 5454 states have internal predecessors, (7707), 753 states have call successors, (753), 753 states have call predecessors, (753), 899 states have return successors, (1523), 751 states have call predecessors, (1523), 752 states have call successors, (1523) [2023-04-02 05:21:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 9983 transitions. [2023-04-02 05:21:37,008 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 9983 transitions. Word has length 120 [2023-04-02 05:21:37,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:37,008 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 9983 transitions. [2023-04-02 05:21:37,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:37,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 9983 transitions. [2023-04-02 05:21:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:37,010 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:37,010 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] [2023-04-02 05:21:37,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:21:37,011 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:37,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 518414130, now seen corresponding path program 1 times [2023-04-02 05:21:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:37,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797341380] [2023-04-02 05:21:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:37,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:37,408 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 05:21:37,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:37,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797341380] [2023-04-02 05:21:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797341380] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:37,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:37,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541811114] [2023-04-02 05:21:37,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:37,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:37,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:37,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:37,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:37,409 INFO L87 Difference]: Start difference. First operand 6959 states and 9983 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:41,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:41,707 INFO L93 Difference]: Finished difference Result 15009 states and 21395 transitions. [2023-04-02 05:21:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:41,724 INFO L225 Difference]: With dead ends: 15009 [2023-04-02 05:21:41,724 INFO L226 Difference]: Without dead ends: 8198 [2023-04-02 05:21:41,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:41,735 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2154 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:41,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 85 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:21:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8198 states. [2023-04-02 05:21:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8198 to 6989. [2023-04-02 05:21:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 5328 states have (on average 1.4521396396396395) internal successors, (7737), 5478 states have internal predecessors, (7737), 756 states have call successors, (756), 756 states have call predecessors, (756), 904 states have return successors, (1530), 754 states have call predecessors, (1530), 755 states have call successors, (1530) [2023-04-02 05:21:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 10023 transitions. [2023-04-02 05:21:43,038 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 10023 transitions. Word has length 120 [2023-04-02 05:21:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:43,039 INFO L495 AbstractCegarLoop]: Abstraction has 6989 states and 10023 transitions. [2023-04-02 05:21:43,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 10023 transitions. [2023-04-02 05:21:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:43,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:43,040 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] [2023-04-02 05:21:43,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:21:43,040 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:43,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1703703390, now seen corresponding path program 1 times [2023-04-02 05:21:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215029041] [2023-04-02 05:21:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:43,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:43,417 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 05:21:43,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:43,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215029041] [2023-04-02 05:21:43,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215029041] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:43,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:43,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:43,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669758307] [2023-04-02 05:21:43,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:43,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:43,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:43,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:43,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:43,419 INFO L87 Difference]: Start difference. First operand 6989 states and 10023 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:47,632 INFO L93 Difference]: Finished difference Result 14299 states and 20345 transitions. [2023-04-02 05:21:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:21:47,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:21:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:47,647 INFO L225 Difference]: With dead ends: 14299 [2023-04-02 05:21:47,647 INFO L226 Difference]: Without dead ends: 7476 [2023-04-02 05:21:47,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:21:47,657 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1756 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:47,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 90 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:21:47,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7476 states. [2023-04-02 05:21:48,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7476 to 6995. [2023-04-02 05:21:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6995 states, 5333 states have (on average 1.4517157322332646) internal successors, (7742), 5482 states have internal predecessors, (7742), 757 states have call successors, (757), 757 states have call predecessors, (757), 904 states have return successors, (1530), 755 states have call predecessors, (1530), 756 states have call successors, (1530) [2023-04-02 05:21:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6995 states to 6995 states and 10029 transitions. [2023-04-02 05:21:48,975 INFO L78 Accepts]: Start accepts. Automaton has 6995 states and 10029 transitions. Word has length 120 [2023-04-02 05:21:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:48,975 INFO L495 AbstractCegarLoop]: Abstraction has 6995 states and 10029 transitions. [2023-04-02 05:21:48,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:21:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6995 states and 10029 transitions. [2023-04-02 05:21:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-04-02 05:21:48,976 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:48,976 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] [2023-04-02 05:21:48,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:21:48,976 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:48,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1886598659, now seen corresponding path program 1 times [2023-04-02 05:21:48,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361838921] [2023-04-02 05:21:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:48,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 05:21:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:21:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:21:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:21:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:21:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:21:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 05:21:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:49,471 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 05:21:49,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:49,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361838921] [2023-04-02 05:21:49,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361838921] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:49,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:49,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:21:49,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316206464] [2023-04-02 05:21:49,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:49,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:21:49,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:49,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:21:49,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:21:49,472 INFO L87 Difference]: Start difference. First operand 6995 states and 10029 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:21:54,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:54,036 INFO L93 Difference]: Finished difference Result 14636 states and 21131 transitions. [2023-04-02 05:21:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:21:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2023-04-02 05:21:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:54,054 INFO L225 Difference]: With dead ends: 14636 [2023-04-02 05:21:54,054 INFO L226 Difference]: Without dead ends: 9610 [2023-04-02 05:21:54,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=505, Invalid=1751, Unknown=0, NotChecked=0, Total=2256 [2023-04-02 05:21:54,061 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2532 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2549 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:54,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2549 Valid, 151 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:21:54,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9610 states. [2023-04-02 05:21:55,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9610 to 9043. [2023-04-02 05:21:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9043 states, 6897 states have (on average 1.4513556618819776) internal successors, (10010), 7094 states have internal predecessors, (10010), 975 states have call successors, (975), 975 states have call predecessors, (975), 1170 states have return successors, (1958), 973 states have call predecessors, (1958), 974 states have call successors, (1958) [2023-04-02 05:21:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9043 states to 9043 states and 12943 transitions. [2023-04-02 05:21:55,777 INFO L78 Accepts]: Start accepts. Automaton has 9043 states and 12943 transitions. Word has length 121 [2023-04-02 05:21:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:55,777 INFO L495 AbstractCegarLoop]: Abstraction has 9043 states and 12943 transitions. [2023-04-02 05:21:55,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:21:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9043 states and 12943 transitions. [2023-04-02 05:21:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 05:21:55,782 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:55,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:55,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:21:55,782 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:55,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 803921230, now seen corresponding path program 1 times [2023-04-02 05:21:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:55,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951217017] [2023-04-02 05:21:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:55,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:21:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:21:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 05:21:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:21:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 05:21:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:21:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 05:21:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:21:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 05:21:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,807 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 05:21:56,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:56,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951217017] [2023-04-02 05:21:56,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951217017] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:56,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:56,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:21:56,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778601327] [2023-04-02 05:21:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:56,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:21:56,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:21:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:21:56,808 INFO L87 Difference]: Start difference. First operand 9043 states and 12943 transitions. Second operand has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 05:22:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:29,021 INFO L93 Difference]: Finished difference Result 18864 states and 27341 transitions. [2023-04-02 05:22:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2023-04-02 05:22:29,021 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 173 [2023-04-02 05:22:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:29,055 INFO L225 Difference]: With dead ends: 18864 [2023-04-02 05:22:29,056 INFO L226 Difference]: Without dead ends: 16490 [2023-04-02 05:22:29,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48968 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=12244, Invalid=104378, Unknown=0, NotChecked=0, Total=116622 [2023-04-02 05:22:29,068 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 4526 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 14111 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 14638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 14111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:29,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 1143 Invalid, 14638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [527 Valid, 14111 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 05:22:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16490 states. [2023-04-02 05:22:31,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16490 to 15137. [2023-04-02 05:22:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15137 states, 11553 states have (on average 1.4578031680083094) internal successors, (16842), 11832 states have internal predecessors, (16842), 1653 states have call successors, (1653), 1653 states have call predecessors, (1653), 1930 states have return successors, (3321), 1651 states have call predecessors, (3321), 1652 states have call successors, (3321) [2023-04-02 05:22:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15137 states to 15137 states and 21816 transitions. [2023-04-02 05:22:31,930 INFO L78 Accepts]: Start accepts. Automaton has 15137 states and 21816 transitions. Word has length 173 [2023-04-02 05:22:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:31,930 INFO L495 AbstractCegarLoop]: Abstraction has 15137 states and 21816 transitions. [2023-04-02 05:22:31,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 05:22:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15137 states and 21816 transitions. [2023-04-02 05:22:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 05:22:31,935 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:31,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:31,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:22:31,936 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:31,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:31,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1980071714, now seen corresponding path program 1 times [2023-04-02 05:22:31,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:31,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592162563] [2023-04-02 05:22:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:31,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:22:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:22:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:22:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:22:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:22:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:22:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:22:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 05:22:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 05:22:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:22:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 05:22:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:22:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 05:22:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:22:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:32,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592162563] [2023-04-02 05:22:32,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592162563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:32,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:32,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:22:32,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562554714] [2023-04-02 05:22:32,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:32,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:22:32,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:22:32,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:22:32,963 INFO L87 Difference]: Start difference. First operand 15137 states and 21816 transitions. Second operand has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 05:23:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:06,517 INFO L93 Difference]: Finished difference Result 27829 states and 40489 transitions. [2023-04-02 05:23:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2023-04-02 05:23:06,517 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2023-04-02 05:23:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:06,574 INFO L225 Difference]: With dead ends: 27829 [2023-04-02 05:23:06,575 INFO L226 Difference]: Without dead ends: 25238 [2023-04-02 05:23:06,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47121 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=11961, Invalid=100599, Unknown=0, NotChecked=0, Total=112560 [2023-04-02 05:23:06,587 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 5034 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 12785 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 13423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 12785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:06,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 1069 Invalid, 13423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [638 Valid, 12785 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 05:23:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25238 states. [2023-04-02 05:23:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25238 to 22331. [2023-04-02 05:23:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22331 states, 17044 states have (on average 1.4605139638582492) internal successors, (24893), 17448 states have internal predecessors, (24893), 2442 states have call successors, (2442), 2442 states have call predecessors, (2442), 2844 states have return successors, (4906), 2440 states have call predecessors, (4906), 2441 states have call successors, (4906) [2023-04-02 05:23:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22331 states to 22331 states and 32241 transitions. [2023-04-02 05:23:11,154 INFO L78 Accepts]: Start accepts. Automaton has 22331 states and 32241 transitions. Word has length 173 [2023-04-02 05:23:11,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:11,154 INFO L495 AbstractCegarLoop]: Abstraction has 22331 states and 32241 transitions. [2023-04-02 05:23:11,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 05:23:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand 22331 states and 32241 transitions. [2023-04-02 05:23:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 05:23:11,161 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:11,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:11,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:23:11,161 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:11,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash -515610930, now seen corresponding path program 1 times [2023-04-02 05:23:11,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:11,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869382797] [2023-04-02 05:23:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:23:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:23:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:23:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:23:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:23:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:23:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:23:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:23:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:23:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:23:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:23:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 05:23:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:23:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 05:23:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:23:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 05:23:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 05:23:12,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:12,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869382797] [2023-04-02 05:23:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869382797] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:12,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:12,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:23:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155649121] [2023-04-02 05:23:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:12,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:23:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:23:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:23:12,134 INFO L87 Difference]: Start difference. First operand 22331 states and 32241 transitions. Second operand has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 05:23:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:47,374 INFO L93 Difference]: Finished difference Result 37972 states and 55171 transitions. [2023-04-02 05:23:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 313 states. [2023-04-02 05:23:47,374 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 17 states have internal predecessors, (110), 4 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2023-04-02 05:23:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:47,463 INFO L225 Difference]: With dead ends: 37972 [2023-04-02 05:23:47,463 INFO L226 Difference]: Without dead ends: 32318 [2023-04-02 05:23:47,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45737 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=11716, Invalid=97514, Unknown=0, NotChecked=0, Total=109230 [2023-04-02 05:23:47,484 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 4087 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 14053 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 14498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 14053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:47,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 1023 Invalid, 14498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [445 Valid, 14053 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 05:23:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32318 states.