/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_opt-floodmax.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:29:47,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:29:47,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:29:47,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:29:47,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:29:47,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:29:47,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:29:47,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:29:47,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:29:47,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:29:47,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:29:47,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:29:47,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:29:47,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:29:47,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:29:47,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:29:47,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:29:47,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:29:47,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:29:47,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:29:47,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:29:47,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:29:47,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:29:47,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:29:47,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:29:47,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:29:47,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:29:47,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:29:47,527 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 05:29:47,549 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:29:47,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:29:47,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:29:47,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:29:47,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:29:47,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:29:47,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:29:47,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:29:47,551 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:29:47,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:29:47,552 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:29:47,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:29:47,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:29:47,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:29:47,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:29:47,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:29:47,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:29:47,554 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:29:47,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:29:47,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:29:47,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:29:47,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:29:47,768 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:29:47,768 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:29:47,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.ufo.UNBOUNDED.pals.c [2023-04-02 05:29:48,800 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:29:49,022 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:29:49,023 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.ufo.UNBOUNDED.pals.c [2023-04-02 05:29:49,040 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675c0836e/01e80846ae1e4d088521d3117b5d6697/FLAG9586826f3 [2023-04-02 05:29:49,053 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675c0836e/01e80846ae1e4d088521d3117b5d6697 [2023-04-02 05:29:49,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:29:49,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:29:49,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:29:49,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:29:49,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:29:49,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f94678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49, skipping insertion in model container [2023-04-02 05:29:49,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:29:49,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:29:49,445 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_opt-floodmax.5.ufo.UNBOUNDED.pals.c[65677,65690] [2023-04-02 05:29:49,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:29:49,457 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:29:49,516 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_opt-floodmax.5.ufo.UNBOUNDED.pals.c[65677,65690] [2023-04-02 05:29:49,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:29:49,528 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:29:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49 WrapperNode [2023-04-02 05:29:49,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:29:49,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:29:49,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:29:49,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:29:49,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:29:49,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:29:49,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:29:49,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:29:49,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (1/1) ... [2023-04-02 05:29:49,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:29:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:29:49,685 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 05:29:49,705 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 05:29:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:29:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:29:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:29:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:29:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:29:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:29:49,890 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:29:49,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:29:51,162 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:29:51,176 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:29:51,176 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:29:51,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:29:51 BoogieIcfgContainer [2023-04-02 05:29:51,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:29:51,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:29:51,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:29:51,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:29:51,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:29:49" (1/3) ... [2023-04-02 05:29:51,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6462c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:29:51, skipping insertion in model container [2023-04-02 05:29:51,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:49" (2/3) ... [2023-04-02 05:29:51,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6462c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:29:51, skipping insertion in model container [2023-04-02 05:29:51,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:29:51" (3/3) ... [2023-04-02 05:29:51,185 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.ufo.UNBOUNDED.pals.c [2023-04-02 05:29:51,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:29:51,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:29:51,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:29:51,243 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;@4cd60633, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:29:51,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:29:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 742 states, 718 states have (on average 1.8481894150417828) internal successors, (1327), 720 states have internal predecessors, (1327), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:29:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:29:51,263 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:51,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:51,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:51,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -166909286, now seen corresponding path program 1 times [2023-04-02 05:29:51,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:51,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642149960] [2023-04-02 05:29:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:29:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:29:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:29:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:29:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:29:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:29:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:29:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:52,659 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 05:29:52,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642149960] [2023-04-02 05:29:52,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642149960] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:52,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:52,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:29:52,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988893315] [2023-04-02 05:29:52,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:29:52,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:29:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:29:52,685 INFO L87 Difference]: Start difference. First operand has 742 states, 718 states have (on average 1.8481894150417828) internal successors, (1327), 720 states have internal predecessors, (1327), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:57,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:57,517 INFO L93 Difference]: Finished difference Result 959 states and 1719 transitions. [2023-04-02 05:29:57,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:29:57,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 187 [2023-04-02 05:29:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:57,538 INFO L225 Difference]: With dead ends: 959 [2023-04-02 05:29:57,539 INFO L226 Difference]: Without dead ends: 777 [2023-04-02 05:29:57,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:29:57,552 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 7836 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7836 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:57,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7836 Valid, 53 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-02 05:29:57,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-04-02 05:29:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 737. [2023-04-02 05:29:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 715 states have (on average 1.8461538461538463) internal successors, (1320), 716 states have internal predecessors, (1320), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:29:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1341 transitions. [2023-04-02 05:29:57,821 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1341 transitions. Word has length 187 [2023-04-02 05:29:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:57,822 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1341 transitions. [2023-04-02 05:29:57,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1341 transitions. [2023-04-02 05:29:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:29:57,825 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:57,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:57,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:29:57,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:57,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1371430744, now seen corresponding path program 1 times [2023-04-02 05:29:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778593116] [2023-04-02 05:29:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:57,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:29:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:29:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:29:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:29:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:29:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:29:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:29:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:59,169 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 05:29:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778593116] [2023-04-02 05:29:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778593116] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:59,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:59,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:29:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409493076] [2023-04-02 05:29:59,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:59,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:29:59,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:29:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:29:59,173 INFO L87 Difference]: Start difference. First operand 737 states and 1341 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:07,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:07,565 INFO L93 Difference]: Finished difference Result 957 states and 1711 transitions. [2023-04-02 05:30:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:30:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 187 [2023-04-02 05:30:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:07,570 INFO L225 Difference]: With dead ends: 957 [2023-04-02 05:30:07,570 INFO L226 Difference]: Without dead ends: 777 [2023-04-02 05:30:07,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:30:07,572 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4363 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9599 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 9697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 9599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:07,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 144 Invalid, 9697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [98 Valid, 9599 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 05:30:07,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-04-02 05:30:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 737. [2023-04-02 05:30:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 715 states have (on average 1.7552447552447552) internal successors, (1255), 716 states have internal predecessors, (1255), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:30:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1276 transitions. [2023-04-02 05:30:07,744 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1276 transitions. Word has length 187 [2023-04-02 05:30:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:07,745 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1276 transitions. [2023-04-02 05:30:07,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1276 transitions. [2023-04-02 05:30:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-04-02 05:30:07,747 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:07,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:07,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:30:07,748 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:07,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:07,748 INFO L85 PathProgramCache]: Analyzing trace with hash -348063562, now seen corresponding path program 1 times [2023-04-02 05:30:07,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:07,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938632369] [2023-04-02 05:30:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:07,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:08,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:30:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:30:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:30:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:09,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:30:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:30:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:09,212 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 05:30:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938632369] [2023-04-02 05:30:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938632369] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:30:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325848494] [2023-04-02 05:30:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:09,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:30:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:09,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:30:09,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:30:09,216 INFO L87 Difference]: Start difference. First operand 737 states and 1276 transitions. Second operand has 19 states, 19 states have (on average 12.157894736842104) internal successors, (231), 13 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:39,397 INFO L93 Difference]: Finished difference Result 3930 states and 6723 transitions. [2023-04-02 05:30:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:30:39,397 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.157894736842104) internal successors, (231), 13 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 251 [2023-04-02 05:30:39,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:39,412 INFO L225 Difference]: With dead ends: 3930 [2023-04-02 05:30:39,413 INFO L226 Difference]: Without dead ends: 3756 [2023-04-02 05:30:39,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6618 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:30:39,426 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 21570 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 14379 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21583 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 14869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 14379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:39,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21583 Valid, 193 Invalid, 14869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [490 Valid, 14379 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-04-02 05:30:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2023-04-02 05:30:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 1601. [2023-04-02 05:30:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1499 states have (on average 1.7391594396264176) internal successors, (2607), 1510 states have internal predecessors, (2607), 46 states have call successors, (46), 46 states have call predecessors, (46), 55 states have return successors, (79), 45 states have call predecessors, (79), 45 states have call successors, (79) [2023-04-02 05:30:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2732 transitions. [2023-04-02 05:30:39,750 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2732 transitions. Word has length 251 [2023-04-02 05:30:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:39,751 INFO L495 AbstractCegarLoop]: Abstraction has 1601 states and 2732 transitions. [2023-04-02 05:30:39,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.157894736842104) internal successors, (231), 13 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2732 transitions. [2023-04-02 05:30:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-02 05:30:39,754 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:39,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:39,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:30:39,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:39,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:39,755 INFO L85 PathProgramCache]: Analyzing trace with hash 23953064, now seen corresponding path program 1 times [2023-04-02 05:30:39,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:39,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434047432] [2023-04-02 05:30:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:39,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:30:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:30:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:30:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:30:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:30:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:40,816 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 05:30:40,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434047432] [2023-04-02 05:30:40,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434047432] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:40,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:40,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:30:40,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271259028] [2023-04-02 05:30:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:40,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:30:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:30:40,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:30:40,819 INFO L87 Difference]: Start difference. First operand 1601 states and 2732 transitions. Second operand has 12 states, 12 states have (on average 19.333333333333332) internal successors, (232), 6 states have internal predecessors, (232), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:53,001 INFO L93 Difference]: Finished difference Result 4768 states and 8098 transitions. [2023-04-02 05:30:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:30:53,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.333333333333332) internal successors, (232), 6 states have internal predecessors, (232), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 252 [2023-04-02 05:30:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:53,013 INFO L225 Difference]: With dead ends: 4768 [2023-04-02 05:30:53,014 INFO L226 Difference]: Without dead ends: 3730 [2023-04-02 05:30:53,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:30:53,017 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 7263 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7816 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7275 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 7911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 7816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:53,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7275 Valid, 131 Invalid, 7911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 7816 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 05:30:53,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2023-04-02 05:30:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3116. [2023-04-02 05:30:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2868 states have (on average 1.7259414225941423) internal successors, (4950), 2899 states have internal predecessors, (4950), 109 states have call successors, (109), 109 states have call predecessors, (109), 138 states have return successors, (210), 108 states have call predecessors, (210), 108 states have call successors, (210) [2023-04-02 05:30:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5269 transitions. [2023-04-02 05:30:53,513 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5269 transitions. Word has length 252 [2023-04-02 05:30:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:53,513 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 5269 transitions. [2023-04-02 05:30:53,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.333333333333332) internal successors, (232), 6 states have internal predecessors, (232), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:53,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5269 transitions. [2023-04-02 05:30:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-02 05:30:53,516 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:53,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:53,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:30:53,517 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:53,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1380118355, now seen corresponding path program 1 times [2023-04-02 05:30:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:53,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376804786] [2023-04-02 05:30:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:30:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:30:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:30:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:30:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:30:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:54,700 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 05:30:54,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:54,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376804786] [2023-04-02 05:30:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376804786] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:54,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:30:54,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447657636] [2023-04-02 05:30:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:54,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:30:54,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:54,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:30:54,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:30:54,704 INFO L87 Difference]: Start difference. First operand 3116 states and 5269 transitions. Second operand has 12 states, 12 states have (on average 19.416666666666668) internal successors, (233), 6 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:07,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:31:07,055 INFO L93 Difference]: Finished difference Result 18794 states and 31826 transitions. [2023-04-02 05:31:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:31:07,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.416666666666668) internal successors, (233), 6 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 253 [2023-04-02 05:31:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:31:07,105 INFO L225 Difference]: With dead ends: 18794 [2023-04-02 05:31:07,105 INFO L226 Difference]: Without dead ends: 16241 [2023-04-02 05:31:07,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:31:07,115 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 6979 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 7708 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6991 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 7708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:31:07,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6991 Valid, 139 Invalid, 7805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 7708 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 05:31:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16241 states. [2023-04-02 05:31:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16241 to 13203. [2023-04-02 05:31:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 11980 states have (on average 1.7141903171953254) internal successors, (20536), 12146 states have internal predecessors, (20536), 529 states have call successors, (529), 529 states have call predecessors, (529), 693 states have return successors, (1119), 528 states have call predecessors, (1119), 528 states have call successors, (1119) [2023-04-02 05:31:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 22184 transitions. [2023-04-02 05:31:08,667 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 22184 transitions. Word has length 253 [2023-04-02 05:31:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:31:08,667 INFO L495 AbstractCegarLoop]: Abstraction has 13203 states and 22184 transitions. [2023-04-02 05:31:08,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.416666666666668) internal successors, (233), 6 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 22184 transitions. [2023-04-02 05:31:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 05:31:08,672 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:31:08,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:08,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:31:08,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:31:08,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:31:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2008344321, now seen corresponding path program 1 times [2023-04-02 05:31:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:31:08,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392790900] [2023-04-02 05:31:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:31:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:31:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:31:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:31:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:31:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:31:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:31:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:31:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:31:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:31:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:31:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:09,769 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 05:31:09,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:09,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392790900] [2023-04-02 05:31:09,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392790900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:09,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:09,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:31:09,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776150789] [2023-04-02 05:31:09,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:09,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:31:09,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:09,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:31:09,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:31:09,771 INFO L87 Difference]: Start difference. First operand 13203 states and 22184 transitions. Second operand has 12 states, 12 states have (on average 19.5) internal successors, (234), 6 states have internal predecessors, (234), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:31:26,850 INFO L93 Difference]: Finished difference Result 91268 states and 154352 transitions. [2023-04-02 05:31:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:31:26,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.5) internal successors, (234), 6 states have internal predecessors, (234), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 254 [2023-04-02 05:31:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:31:27,153 INFO L225 Difference]: With dead ends: 91268 [2023-04-02 05:31:27,154 INFO L226 Difference]: Without dead ends: 78628 [2023-04-02 05:31:27,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:31:27,203 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 9491 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 7425 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 7425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:31:27,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9503 Valid, 139 Invalid, 7557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 7425 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 05:31:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78628 states. [2023-04-02 05:31:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78628 to 63470. [2023-04-02 05:31:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63470 states, 57312 states have (on average 1.707600502512563) internal successors, (97866), 58213 states have internal predecessors, (97866), 2629 states have call successors, (2629), 2629 states have call predecessors, (2629), 3528 states have return successors, (5976), 2628 states have call predecessors, (5976), 2628 states have call successors, (5976) [2023-04-02 05:31:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63470 states to 63470 states and 106471 transitions. [2023-04-02 05:31:34,427 INFO L78 Accepts]: Start accepts. Automaton has 63470 states and 106471 transitions. Word has length 254 [2023-04-02 05:31:34,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:31:34,428 INFO L495 AbstractCegarLoop]: Abstraction has 63470 states and 106471 transitions. [2023-04-02 05:31:34,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.5) internal successors, (234), 6 states have internal predecessors, (234), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 63470 states and 106471 transitions. [2023-04-02 05:31:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-04-02 05:31:34,433 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:31:34,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:34,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:31:34,434 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:31:34,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:31:34,434 INFO L85 PathProgramCache]: Analyzing trace with hash -60197724, now seen corresponding path program 1 times [2023-04-02 05:31:34,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:31:34,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981346935] [2023-04-02 05:31:34,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:31:34,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:31:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:31:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:31:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:31:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:31:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:31:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:31:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:31:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:31:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:31:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:35,747 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 05:31:35,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:35,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981346935] [2023-04-02 05:31:35,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981346935] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:35,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:35,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:31:35,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702418370] [2023-04-02 05:31:35,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:35,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:31:35,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:35,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:31:35,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:31:35,749 INFO L87 Difference]: Start difference. First operand 63470 states and 106471 transitions. Second operand has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:32:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:32:18,208 INFO L93 Difference]: Finished difference Result 453158 states and 766166 transitions. [2023-04-02 05:32:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:32:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 255 [2023-04-02 05:32:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:32:20,305 INFO L225 Difference]: With dead ends: 453158 [2023-04-02 05:32:20,305 INFO L226 Difference]: Without dead ends: 390251 [2023-04-02 05:32:20,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:32:20,469 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 12337 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7228 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12349 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 7393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 7228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:32:20,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12349 Valid, 131 Invalid, 7393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [165 Valid, 7228 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 05:32:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390251 states. [2023-04-02 05:32:53,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390251 to 314493. [2023-04-02 05:32:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314493 states, 283360 states have (on average 1.7032044042913608) internal successors, (482620), 288236 states have internal predecessors, (482620), 13129 states have call successors, (13129), 13129 states have call predecessors, (13129), 18003 states have return successors, (31797), 13128 states have call predecessors, (31797), 13128 states have call successors, (31797) [2023-04-02 05:32:57,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314493 states to 314493 states and 527546 transitions. [2023-04-02 05:32:57,128 INFO L78 Accepts]: Start accepts. Automaton has 314493 states and 527546 transitions. Word has length 255 [2023-04-02 05:32:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:32:57,128 INFO L495 AbstractCegarLoop]: Abstraction has 314493 states and 527546 transitions. [2023-04-02 05:32:57,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:32:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 314493 states and 527546 transitions. [2023-04-02 05:32:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-04-02 05:32:57,138 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:32:57,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:57,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:32:57,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:32:57,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:32:57,139 INFO L85 PathProgramCache]: Analyzing trace with hash 151119702, now seen corresponding path program 1 times [2023-04-02 05:32:57,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:32:57,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616842529] [2023-04-02 05:32:57,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:32:57,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:32:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:32:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:32:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:32:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:32:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:32:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:32:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:32:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:32:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:32:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:32:58,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:32:58,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616842529] [2023-04-02 05:32:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616842529] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:32:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:32:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:32:58,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504015345] [2023-04-02 05:32:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:32:58,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:32:58,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:32:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:32:58,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:32:58,399 INFO L87 Difference]: Start difference. First operand 314493 states and 527546 transitions. Second operand has 12 states, 12 states have (on average 19.666666666666668) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9)