/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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:30:47,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:30:47,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:30:47,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 06:30:47,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 06:30:47,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 06:30:47,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 06:30:47,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 06:30:47,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 06:30:47,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 06:30:47,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 06:30:47,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 06:30:47,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 06:30:47,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 06:30:47,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 06:30:47,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 06:30:47,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 06:30:47,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 06:30:47,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 06:30:47,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 06:30:47,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 06:30:47,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 06:30:47,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 06:30:47,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 06:30:47,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 06:30:47,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 06:30:47,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 06:30:47,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 06:30:47,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 06:30:47,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 06:30:47,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 06:30:47,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 06:30:47,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 06:30:47,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 06:30:47,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 06:30:47,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 06:30:47,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 06:30:47,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 06:30:47,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:30:47,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:30:47,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:30:47,660 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 06:30:47,682 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:30:47,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:30:47,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:30:47,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:30:47,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:30:47,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:30:47,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:30:47,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:30:47,684 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:30:47,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:30:47,684 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:30:47,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:30:47,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:30:47,685 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:30:47,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:30:47,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:30:47,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:30:47,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:30:47,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:30:47,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:30:47,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:30:47,687 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:30:47,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:30:47,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:30:47,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:30:47,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:30:47,958 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:30:47,958 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:30:47,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:30:49,090 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:30:49,373 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:30:49,373 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:30:49,391 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f4a9383/f04421390b5141f698a9abbec472d8ec/FLAGd8568ff15 [2023-04-02 06:30:49,406 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f4a9383/f04421390b5141f698a9abbec472d8ec [2023-04-02 06:30:49,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:30:49,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:30:49,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:30:49,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:30:49,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:30:49,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:30:49" (1/1) ... [2023-04-02 06:30:49,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbaaa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:49, skipping insertion in model container [2023-04-02 06:30:49,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:30:49" (1/1) ... [2023-04-02 06:30:49,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:30:49,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:30:49,753 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2023-04-02 06:30:49,803 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2023-04-02 06:30:49,819 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2023-04-02 06:30:49,830 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2023-04-02 06:30:49,856 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2023-04-02 06:30:49,882 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2023-04-02 06:30:49,894 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2023-04-02 06:30:49,914 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2023-04-02 06:30:49,924 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2023-04-02 06:30:49,932 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2023-04-02 06:30:49,941 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2023-04-02 06:30:49,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:30:49,981 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:30:50,166 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2023-04-02 06:30:50,246 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2023-04-02 06:30:50,273 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2023-04-02 06:30:50,291 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2023-04-02 06:30:50,315 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2023-04-02 06:30:50,325 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2023-04-02 06:30:50,332 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2023-04-02 06:30:50,339 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2023-04-02 06:30:50,346 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2023-04-02 06:30:50,355 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2023-04-02 06:30:50,363 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-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2023-04-02 06:30:50,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:30:50,407 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:30:50,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50 WrapperNode [2023-04-02 06:30:50,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:30:50,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:30:50,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:30:50,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:30:50,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:30:50,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:30:50,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:30:50,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:30:50,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (1/1) ... [2023-04-02 06:30:50,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:30:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:30:50,584 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 06:30:50,609 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 06:30:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:30:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:30:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:30:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:30:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:30:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:30:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:30:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:30:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:30:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:30:50,856 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:30:50,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:30:52,205 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:30:52,222 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:30:52,222 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:30:52,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:30:52 BoogieIcfgContainer [2023-04-02 06:30:52,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:30:52,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:30:52,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:30:52,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:30:52,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:30:49" (1/3) ... [2023-04-02 06:30:52,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea56d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:30:52, skipping insertion in model container [2023-04-02 06:30:52,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:30:50" (2/3) ... [2023-04-02 06:30:52,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea56d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:30:52, skipping insertion in model container [2023-04-02 06:30:52,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:30:52" (3/3) ... [2023-04-02 06:30:52,236 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:30:52,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:30:52,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-04-02 06:30:52,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:30:52,328 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;@246c2d37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:30:52,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-04-02 06:30:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 542 states, 526 states have (on average 1.8288973384030418) internal successors, (962), 537 states have internal predecessors, (962), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:30:52,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 06:30:52,366 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:52,367 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] [2023-04-02 06:30:52,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:52,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1091759005, now seen corresponding path program 1 times [2023-04-02 06:30:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:52,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571622736] [2023-04-02 06:30:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:52,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:53,272 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 06:30:53,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:53,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571622736] [2023-04-02 06:30:53,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571622736] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:53,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:30:53,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111610227] [2023-04-02 06:30:53,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:53,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:30:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:53,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:30:53,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:30:53,325 INFO L87 Difference]: Start difference. First operand has 542 states, 526 states have (on average 1.8288973384030418) internal successors, (962), 537 states have internal predecessors, (962), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:55,379 INFO L93 Difference]: Finished difference Result 684 states and 1184 transitions. [2023-04-02 06:30:55,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:30:55,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-04-02 06:30:55,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:55,391 INFO L225 Difference]: With dead ends: 684 [2023-04-02 06:30:55,392 INFO L226 Difference]: Without dead ends: 392 [2023-04-02 06:30:55,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:30:55,398 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1952 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:55,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 448 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 06:30:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-04-02 06:30:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2023-04-02 06:30:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 378 states have (on average 1.2962962962962963) internal successors, (490), 388 states have internal predecessors, (490), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 493 transitions. [2023-04-02 06:30:55,460 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 493 transitions. Word has length 63 [2023-04-02 06:30:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:55,460 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 493 transitions. [2023-04-02 06:30:55,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 493 transitions. [2023-04-02 06:30:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 06:30:55,462 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:55,462 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] [2023-04-02 06:30:55,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:30:55,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:55,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1192295104, now seen corresponding path program 1 times [2023-04-02 06:30:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495099616] [2023-04-02 06:30:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:55,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:55,878 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 06:30:55,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:55,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495099616] [2023-04-02 06:30:55,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495099616] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:55,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:55,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:30:55,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357986740] [2023-04-02 06:30:55,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:55,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:30:55,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:55,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:30:55,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:30:55,881 INFO L87 Difference]: Start difference. First operand 392 states and 493 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:57,119 INFO L93 Difference]: Finished difference Result 558 states and 713 transitions. [2023-04-02 06:30:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:30:57,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-04-02 06:30:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:57,122 INFO L225 Difference]: With dead ends: 558 [2023-04-02 06:30:57,122 INFO L226 Difference]: Without dead ends: 360 [2023-04-02 06:30:57,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:30:57,124 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1282 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:57,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 253 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 06:30:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-04-02 06:30:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-04-02 06:30:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 346 states have (on average 1.3092485549132948) internal successors, (453), 356 states have internal predecessors, (453), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 456 transitions. [2023-04-02 06:30:57,148 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 456 transitions. Word has length 63 [2023-04-02 06:30:57,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:57,149 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 456 transitions. [2023-04-02 06:30:57,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 456 transitions. [2023-04-02 06:30:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 06:30:57,150 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:57,150 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] [2023-04-02 06:30:57,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:30:57,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:57,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:57,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1654169314, now seen corresponding path program 1 times [2023-04-02 06:30:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:57,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107377599] [2023-04-02 06:30:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:57,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:57,569 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 06:30:57,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:57,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107377599] [2023-04-02 06:30:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107377599] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:57,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:30:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318711297] [2023-04-02 06:30:57,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:30:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:57,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:30:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:30:57,573 INFO L87 Difference]: Start difference. First operand 360 states and 456 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:58,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:58,516 INFO L93 Difference]: Finished difference Result 458 states and 577 transitions. [2023-04-02 06:30:58,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:30:58,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-04-02 06:30:58,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:58,518 INFO L225 Difference]: With dead ends: 458 [2023-04-02 06:30:58,518 INFO L226 Difference]: Without dead ends: 274 [2023-04-02 06:30:58,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:30:58,520 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 958 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:58,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 213 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 06:30:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-04-02 06:30:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-04-02 06:30:58,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 260 states have (on average 1.3076923076923077) internal successors, (340), 270 states have internal predecessors, (340), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 343 transitions. [2023-04-02 06:30:58,536 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 343 transitions. Word has length 63 [2023-04-02 06:30:58,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:58,536 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 343 transitions. [2023-04-02 06:30:58,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 343 transitions. [2023-04-02 06:30:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 06:30:58,537 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:58,537 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] [2023-04-02 06:30:58,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:30:58,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:58,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash 713575270, now seen corresponding path program 1 times [2023-04-02 06:30:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888323686] [2023-04-02 06:30:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:58,887 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 06:30:58,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:58,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888323686] [2023-04-02 06:30:58,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888323686] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:58,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:58,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:30:58,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947567891] [2023-04-02 06:30:58,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:58,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:30:58,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:58,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:30:58,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:30:58,890 INFO L87 Difference]: Start difference. First operand 274 states and 343 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:59,743 INFO L93 Difference]: Finished difference Result 402 states and 513 transitions. [2023-04-02 06:30:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:30:59,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-04-02 06:30:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:59,745 INFO L225 Difference]: With dead ends: 402 [2023-04-02 06:30:59,745 INFO L226 Difference]: Without dead ends: 249 [2023-04-02 06:30:59,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:30:59,746 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 892 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:59,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 194 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:30:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-04-02 06:30:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2023-04-02 06:30:59,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 245 states have internal predecessors, (310), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 313 transitions. [2023-04-02 06:30:59,762 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 313 transitions. Word has length 64 [2023-04-02 06:30:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:59,763 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 313 transitions. [2023-04-02 06:30:59,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 313 transitions. [2023-04-02 06:30:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 06:30:59,764 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:59,764 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] [2023-04-02 06:30:59,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:30:59,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:59,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:59,765 INFO L85 PathProgramCache]: Analyzing trace with hash 354768027, now seen corresponding path program 1 times [2023-04-02 06:30:59,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:59,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10276308] [2023-04-02 06:30:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:00,371 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 06:31:00,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:00,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10276308] [2023-04-02 06:31:00,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10276308] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:00,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:00,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:00,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103103662] [2023-04-02 06:31:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:00,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:00,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:00,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:00,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:00,374 INFO L87 Difference]: Start difference. First operand 249 states and 313 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:01,898 INFO L93 Difference]: Finished difference Result 557 states and 742 transitions. [2023-04-02 06:31:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:01,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-04-02 06:31:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:01,901 INFO L225 Difference]: With dead ends: 557 [2023-04-02 06:31:01,901 INFO L226 Difference]: Without dead ends: 491 [2023-04-02 06:31:01,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:31:01,902 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 2018 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:01,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 909 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-04-02 06:31:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 249. [2023-04-02 06:31:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.3148936170212766) internal successors, (309), 245 states have internal predecessors, (309), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 312 transitions. [2023-04-02 06:31:01,941 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 312 transitions. Word has length 65 [2023-04-02 06:31:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:01,942 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 312 transitions. [2023-04-02 06:31:01,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 312 transitions. [2023-04-02 06:31:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 06:31:01,943 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:01,943 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] [2023-04-02 06:31:01,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:31:01,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:01,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash -25879706, now seen corresponding path program 1 times [2023-04-02 06:31:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054376965] [2023-04-02 06:31:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:02,574 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 06:31:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:02,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054376965] [2023-04-02 06:31:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054376965] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:02,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:31:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814879562] [2023-04-02 06:31:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:02,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:02,577 INFO L87 Difference]: Start difference. First operand 249 states and 312 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:04,333 INFO L93 Difference]: Finished difference Result 564 states and 742 transitions. [2023-04-02 06:31:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 06:31:04,333 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-04-02 06:31:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:04,337 INFO L225 Difference]: With dead ends: 564 [2023-04-02 06:31:04,337 INFO L226 Difference]: Without dead ends: 505 [2023-04-02 06:31:04,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2023-04-02 06:31:04,338 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 998 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:04,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1557 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 06:31:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-04-02 06:31:04,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 256. [2023-04-02 06:31:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 242 states have (on average 1.3181818181818181) internal successors, (319), 252 states have internal predecessors, (319), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 322 transitions. [2023-04-02 06:31:04,368 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 322 transitions. Word has length 65 [2023-04-02 06:31:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:04,368 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 322 transitions. [2023-04-02 06:31:04,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,369 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 322 transitions. [2023-04-02 06:31:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 06:31:04,369 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:04,369 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] [2023-04-02 06:31:04,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:31:04,370 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:04,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash -424694786, now seen corresponding path program 1 times [2023-04-02 06:31:04,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:04,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311014204] [2023-04-02 06:31:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:04,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:04,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:04,984 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 06:31:04,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311014204] [2023-04-02 06:31:04,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311014204] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:04,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:04,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850630725] [2023-04-02 06:31:04,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:04,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:04,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:04,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:04,986 INFO L87 Difference]: Start difference. First operand 256 states and 322 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:06,538 INFO L93 Difference]: Finished difference Result 583 states and 773 transitions. [2023-04-02 06:31:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-04-02 06:31:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:06,540 INFO L225 Difference]: With dead ends: 583 [2023-04-02 06:31:06,540 INFO L226 Difference]: Without dead ends: 495 [2023-04-02 06:31:06,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:06,542 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1724 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:06,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 1199 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-04-02 06:31:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 249. [2023-04-02 06:31:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.3106382978723403) internal successors, (308), 245 states have internal predecessors, (308), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 311 transitions. [2023-04-02 06:31:06,570 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 311 transitions. Word has length 65 [2023-04-02 06:31:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:06,570 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 311 transitions. [2023-04-02 06:31:06,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 311 transitions. [2023-04-02 06:31:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 06:31:06,571 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:06,571 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] [2023-04-02 06:31:06,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:31:06,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:06,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1620694677, now seen corresponding path program 1 times [2023-04-02 06:31:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109402733] [2023-04-02 06:31:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:06,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:07,149 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 06:31:07,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:07,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109402733] [2023-04-02 06:31:07,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109402733] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:07,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:31:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293910879] [2023-04-02 06:31:07,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:07,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:31:07,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:31:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:31:07,151 INFO L87 Difference]: Start difference. First operand 249 states and 311 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:08,246 INFO L93 Difference]: Finished difference Result 488 states and 613 transitions. [2023-04-02 06:31:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:31:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-04-02 06:31:08,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:08,248 INFO L225 Difference]: With dead ends: 488 [2023-04-02 06:31:08,249 INFO L226 Difference]: Without dead ends: 355 [2023-04-02 06:31:08,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:31:08,250 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1910 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:08,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 459 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 06:31:08,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-02 06:31:08,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 249. [2023-04-02 06:31:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 245 states have internal predecessors, (307), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 310 transitions. [2023-04-02 06:31:08,281 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 310 transitions. Word has length 65 [2023-04-02 06:31:08,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:08,281 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 310 transitions. [2023-04-02 06:31:08,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 310 transitions. [2023-04-02 06:31:08,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:08,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:08,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:08,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:31:08,283 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:08,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:08,283 INFO L85 PathProgramCache]: Analyzing trace with hash -585243504, now seen corresponding path program 1 times [2023-04-02 06:31:08,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:08,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549855301] [2023-04-02 06:31:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:08,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:08,809 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 06:31:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549855301] [2023-04-02 06:31:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549855301] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:08,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:08,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231017733] [2023-04-02 06:31:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:08,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:08,812 INFO L87 Difference]: Start difference. First operand 249 states and 310 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:10,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:10,257 INFO L93 Difference]: Finished difference Result 508 states and 663 transitions. [2023-04-02 06:31:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:10,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:10,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:10,260 INFO L225 Difference]: With dead ends: 508 [2023-04-02 06:31:10,260 INFO L226 Difference]: Without dead ends: 491 [2023-04-02 06:31:10,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:31:10,263 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1819 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:10,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1819 Valid, 1054 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-04-02 06:31:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 249. [2023-04-02 06:31:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 245 states have internal predecessors, (306), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 309 transitions. [2023-04-02 06:31:10,294 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 309 transitions. Word has length 67 [2023-04-02 06:31:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:10,296 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 309 transitions. [2023-04-02 06:31:10,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 309 transitions. [2023-04-02 06:31:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:10,296 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:10,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:10,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:31:10,297 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:10,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1572955272, now seen corresponding path program 1 times [2023-04-02 06:31:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988990033] [2023-04-02 06:31:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:10,766 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 06:31:10,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988990033] [2023-04-02 06:31:10,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988990033] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:10,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:10,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968267193] [2023-04-02 06:31:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:10,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:10,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:10,768 INFO L87 Difference]: Start difference. First operand 249 states and 309 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:12,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:12,194 INFO L93 Difference]: Finished difference Result 488 states and 632 transitions. [2023-04-02 06:31:12,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:12,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:12,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:12,196 INFO L225 Difference]: With dead ends: 488 [2023-04-02 06:31:12,196 INFO L226 Difference]: Without dead ends: 483 [2023-04-02 06:31:12,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:12,197 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 948 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:12,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 1018 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-04-02 06:31:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 249. [2023-04-02 06:31:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.297872340425532) internal successors, (305), 245 states have internal predecessors, (305), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 308 transitions. [2023-04-02 06:31:12,233 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 308 transitions. Word has length 67 [2023-04-02 06:31:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 308 transitions. [2023-04-02 06:31:12,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 308 transitions. [2023-04-02 06:31:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:12,234 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:12,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:12,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:31:12,234 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:12,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2137780184, now seen corresponding path program 1 times [2023-04-02 06:31:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730486413] [2023-04-02 06:31:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:12,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:12,755 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 06:31:12,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:12,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730486413] [2023-04-02 06:31:12,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730486413] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:12,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:12,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:12,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636835201] [2023-04-02 06:31:12,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:12,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:12,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:12,757 INFO L87 Difference]: Start difference. First operand 249 states and 308 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:14,271 INFO L93 Difference]: Finished difference Result 589 states and 773 transitions. [2023-04-02 06:31:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:14,273 INFO L225 Difference]: With dead ends: 589 [2023-04-02 06:31:14,273 INFO L226 Difference]: Without dead ends: 495 [2023-04-02 06:31:14,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:14,275 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 1416 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:14,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1177 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 06:31:14,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-04-02 06:31:14,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 249. [2023-04-02 06:31:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.2936170212765958) internal successors, (304), 245 states have internal predecessors, (304), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 307 transitions. [2023-04-02 06:31:14,307 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 307 transitions. Word has length 67 [2023-04-02 06:31:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:14,308 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 307 transitions. [2023-04-02 06:31:14,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 307 transitions. [2023-04-02 06:31:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:14,309 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:14,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:14,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:31:14,309 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:14,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:14,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1690742581, now seen corresponding path program 1 times [2023-04-02 06:31:14,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190976343] [2023-04-02 06:31:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:14,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:14,759 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 06:31:14,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:14,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190976343] [2023-04-02 06:31:14,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190976343] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:14,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:14,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:14,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922088073] [2023-04-02 06:31:14,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:14,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:14,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:14,761 INFO L87 Difference]: Start difference. First operand 249 states and 307 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:16,188 INFO L93 Difference]: Finished difference Result 542 states and 711 transitions. [2023-04-02 06:31:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:16,191 INFO L225 Difference]: With dead ends: 542 [2023-04-02 06:31:16,191 INFO L226 Difference]: Without dead ends: 483 [2023-04-02 06:31:16,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:16,192 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1353 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:16,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1017 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 06:31:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-04-02 06:31:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 249. [2023-04-02 06:31:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 245 states have internal predecessors, (303), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 306 transitions. [2023-04-02 06:31:16,231 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 306 transitions. Word has length 67 [2023-04-02 06:31:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:16,231 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 306 transitions. [2023-04-02 06:31:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 306 transitions. [2023-04-02 06:31:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:16,232 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:16,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:16,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:31:16,232 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:16,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2089557661, now seen corresponding path program 1 times [2023-04-02 06:31:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844640837] [2023-04-02 06:31:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:16,962 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 06:31:16,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:16,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844640837] [2023-04-02 06:31:16,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844640837] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:16,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:16,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:31:16,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516352711] [2023-04-02 06:31:16,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:16,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:16,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:16,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:16,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:16,963 INFO L87 Difference]: Start difference. First operand 249 states and 306 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:20,036 INFO L93 Difference]: Finished difference Result 943 states and 1290 transitions. [2023-04-02 06:31:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:31:20,036 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:20,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:20,039 INFO L225 Difference]: With dead ends: 943 [2023-04-02 06:31:20,039 INFO L226 Difference]: Without dead ends: 872 [2023-04-02 06:31:20,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:31:20,041 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 2931 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:20,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2931 Valid, 1991 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 06:31:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2023-04-02 06:31:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 253. [2023-04-02 06:31:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 239 states have (on average 1.284518828451883) internal successors, (307), 249 states have internal predecessors, (307), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 310 transitions. [2023-04-02 06:31:20,089 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 310 transitions. Word has length 67 [2023-04-02 06:31:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:20,090 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 310 transitions. [2023-04-02 06:31:20,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 310 transitions. [2023-04-02 06:31:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:20,090 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:20,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:20,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:31:20,091 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:20,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1127406528, now seen corresponding path program 1 times [2023-04-02 06:31:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56384127] [2023-04-02 06:31:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:20,848 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 06:31:20,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56384127] [2023-04-02 06:31:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56384127] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:31:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862891313] [2023-04-02 06:31:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:20,851 INFO L87 Difference]: Start difference. First operand 253 states and 310 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:23,402 INFO L93 Difference]: Finished difference Result 781 states and 1049 transitions. [2023-04-02 06:31:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:31:23,402 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:23,405 INFO L225 Difference]: With dead ends: 781 [2023-04-02 06:31:23,405 INFO L226 Difference]: Without dead ends: 776 [2023-04-02 06:31:23,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:31:23,406 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 2988 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:23,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 1519 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 06:31:23,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-04-02 06:31:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 257. [2023-04-02 06:31:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 253 states have internal predecessors, (311), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 314 transitions. [2023-04-02 06:31:23,470 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 314 transitions. Word has length 67 [2023-04-02 06:31:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:23,471 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 314 transitions. [2023-04-02 06:31:23,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,471 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 314 transitions. [2023-04-02 06:31:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 06:31:23,471 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:23,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:23,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:31:23,472 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:23,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1771287395, now seen corresponding path program 1 times [2023-04-02 06:31:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:23,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43644118] [2023-04-02 06:31:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:23,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:23,986 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 06:31:23,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:23,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43644118] [2023-04-02 06:31:23,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43644118] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:23,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:23,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252306383] [2023-04-02 06:31:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:23,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:23,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:23,988 INFO L87 Difference]: Start difference. First operand 257 states and 314 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:25,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:25,458 INFO L93 Difference]: Finished difference Result 543 states and 710 transitions. [2023-04-02 06:31:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:25,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-04-02 06:31:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:25,459 INFO L225 Difference]: With dead ends: 543 [2023-04-02 06:31:25,460 INFO L226 Difference]: Without dead ends: 487 [2023-04-02 06:31:25,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:31:25,461 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1828 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:25,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 974 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 06:31:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-04-02 06:31:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 257. [2023-04-02 06:31:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 243 states have (on average 1.2757201646090535) internal successors, (310), 253 states have internal predecessors, (310), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 313 transitions. [2023-04-02 06:31:25,517 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 313 transitions. Word has length 67 [2023-04-02 06:31:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:25,517 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 313 transitions. [2023-04-02 06:31:25,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 313 transitions. [2023-04-02 06:31:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:31:25,518 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:25,518 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] [2023-04-02 06:31:25,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:31:25,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:25,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2099668106, now seen corresponding path program 1 times [2023-04-02 06:31:25,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:25,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854795699] [2023-04-02 06:31:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:25,999 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 06:31:25,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:25,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854795699] [2023-04-02 06:31:26,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854795699] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:26,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:26,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:26,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442497996] [2023-04-02 06:31:26,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:26,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:26,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:26,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:26,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:26,003 INFO L87 Difference]: Start difference. First operand 257 states and 313 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:27,689 INFO L93 Difference]: Finished difference Result 566 states and 741 transitions. [2023-04-02 06:31:27,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:31:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:27,691 INFO L225 Difference]: With dead ends: 566 [2023-04-02 06:31:27,691 INFO L226 Difference]: Without dead ends: 495 [2023-04-02 06:31:27,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:27,693 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1074 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:27,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1394 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 06:31:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-04-02 06:31:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 253. [2023-04-02 06:31:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 239 states have (on average 1.2761506276150627) internal successors, (305), 249 states have internal predecessors, (305), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 308 transitions. [2023-04-02 06:31:27,760 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 308 transitions. Word has length 68 [2023-04-02 06:31:27,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:27,760 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 308 transitions. [2023-04-02 06:31:27,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:27,760 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 308 transitions. [2023-04-02 06:31:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:31:27,761 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:27,761 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] [2023-04-02 06:31:27,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:31:27,761 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:27,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:27,761 INFO L85 PathProgramCache]: Analyzing trace with hash 583108411, now seen corresponding path program 1 times [2023-04-02 06:31:27,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:27,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543500985] [2023-04-02 06:31:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:28,216 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 06:31:28,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:28,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543500985] [2023-04-02 06:31:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543500985] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570124550] [2023-04-02 06:31:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:28,219 INFO L87 Difference]: Start difference. First operand 253 states and 308 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:29,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:29,765 INFO L93 Difference]: Finished difference Result 488 states and 626 transitions. [2023-04-02 06:31:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:31:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:29,767 INFO L225 Difference]: With dead ends: 488 [2023-04-02 06:31:29,767 INFO L226 Difference]: Without dead ends: 483 [2023-04-02 06:31:29,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:29,768 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 839 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:29,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1185 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-04-02 06:31:29,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 249. [2023-04-02 06:31:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 245 states have internal predecessors, (300), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 303 transitions. [2023-04-02 06:31:29,840 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 303 transitions. Word has length 68 [2023-04-02 06:31:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:29,841 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 303 transitions. [2023-04-02 06:31:29,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 303 transitions. [2023-04-02 06:31:29,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:31:29,842 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:29,842 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] [2023-04-02 06:31:29,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:31:29,842 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:29,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:29,843 INFO L85 PathProgramCache]: Analyzing trace with hash -310874909, now seen corresponding path program 1 times [2023-04-02 06:31:29,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241347350] [2023-04-02 06:31:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:31,306 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 06:31:31,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:31,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241347350] [2023-04-02 06:31:31,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241347350] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:31,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:31,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 06:31:31,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401679915] [2023-04-02 06:31:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:31,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 06:31:31,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 06:31:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:31:31,308 INFO L87 Difference]: Start difference. First operand 249 states and 303 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:35,869 INFO L93 Difference]: Finished difference Result 831 states and 1046 transitions. [2023-04-02 06:31:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 06:31:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:31:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:35,872 INFO L225 Difference]: With dead ends: 831 [2023-04-02 06:31:35,872 INFO L226 Difference]: Without dead ends: 773 [2023-04-02 06:31:35,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=344, Invalid=1726, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 06:31:35,873 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2563 mSDsluCounter, 6293 mSDsCounter, 0 mSdLazyCounter, 4667 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2563 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 4704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:35,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2563 Valid, 6880 Invalid, 4704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4667 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:31:35,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-04-02 06:31:35,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 264. [2023-04-02 06:31:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 250 states have (on average 1.284) internal successors, (321), 260 states have internal predecessors, (321), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 324 transitions. [2023-04-02 06:31:35,951 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 324 transitions. Word has length 69 [2023-04-02 06:31:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:35,952 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 324 transitions. [2023-04-02 06:31:35,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:35,952 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 324 transitions. [2023-04-02 06:31:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:31:35,953 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:35,953 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] [2023-04-02 06:31:35,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:31:35,953 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:35,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1684934901, now seen corresponding path program 1 times [2023-04-02 06:31:35,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:35,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773906284] [2023-04-02 06:31:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:36,730 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 06:31:36,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773906284] [2023-04-02 06:31:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773906284] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:36,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:36,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:31:36,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325197611] [2023-04-02 06:31:36,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:36,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:36,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:36,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:36,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:36,733 INFO L87 Difference]: Start difference. First operand 264 states and 324 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:39,228 INFO L93 Difference]: Finished difference Result 698 states and 930 transitions. [2023-04-02 06:31:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:31:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:31:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:39,230 INFO L225 Difference]: With dead ends: 698 [2023-04-02 06:31:39,230 INFO L226 Difference]: Without dead ends: 611 [2023-04-02 06:31:39,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:31:39,231 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 1832 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:39,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 3354 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 06:31:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-04-02 06:31:39,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 231. [2023-04-02 06:31:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2863636363636364) internal successors, (283), 227 states have internal predecessors, (283), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2023-04-02 06:31:39,297 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 69 [2023-04-02 06:31:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:39,298 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2023-04-02 06:31:39,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2023-04-02 06:31:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:31:39,299 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:39,299 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] [2023-04-02 06:31:39,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:31:39,299 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:39,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1137264510, now seen corresponding path program 1 times [2023-04-02 06:31:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649780623] [2023-04-02 06:31:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:39,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:40,573 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 06:31:40,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:40,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649780623] [2023-04-02 06:31:40,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649780623] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:40,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:40,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-04-02 06:31:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061121607] [2023-04-02 06:31:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:40,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 06:31:40,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 06:31:40,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-04-02 06:31:40,575 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:43,652 INFO L93 Difference]: Finished difference Result 729 states and 959 transitions. [2023-04-02 06:31:43,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 06:31:43,653 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:31:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:43,655 INFO L225 Difference]: With dead ends: 729 [2023-04-02 06:31:43,655 INFO L226 Difference]: Without dead ends: 646 [2023-04-02 06:31:43,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2023-04-02 06:31:43,656 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 3419 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3419 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:43,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3419 Valid, 3804 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 06:31:43,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-04-02 06:31:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 237. [2023-04-02 06:31:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 226 states have (on average 1.2787610619469028) internal successors, (289), 233 states have internal predecessors, (289), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 292 transitions. [2023-04-02 06:31:43,727 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 292 transitions. Word has length 69 [2023-04-02 06:31:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:43,727 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 292 transitions. [2023-04-02 06:31:43,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 292 transitions. [2023-04-02 06:31:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:31:43,728 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:43,728 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] [2023-04-02 06:31:43,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:31:43,728 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:43,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2010946181, now seen corresponding path program 1 times [2023-04-02 06:31:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:43,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013175577] [2023-04-02 06:31:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:44,413 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 06:31:44,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:44,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013175577] [2023-04-02 06:31:44,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013175577] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:44,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:31:44,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319247779] [2023-04-02 06:31:44,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:44,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:44,417 INFO L87 Difference]: Start difference. First operand 237 states and 292 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:46,459 INFO L93 Difference]: Finished difference Result 621 states and 841 transitions. [2023-04-02 06:31:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:31:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:31:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:46,461 INFO L225 Difference]: With dead ends: 621 [2023-04-02 06:31:46,461 INFO L226 Difference]: Without dead ends: 543 [2023-04-02 06:31:46,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:31:46,462 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1520 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:46,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 2264 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-04-02 06:31:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 213. [2023-04-02 06:31:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.2758620689655173) internal successors, (259), 209 states have internal predecessors, (259), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:46,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 262 transitions. [2023-04-02 06:31:46,544 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 262 transitions. Word has length 69 [2023-04-02 06:31:46,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:46,544 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 262 transitions. [2023-04-02 06:31:46,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:46,545 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 262 transitions. [2023-04-02 06:31:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:31:46,545 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:46,545 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] [2023-04-02 06:31:46,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:31:46,546 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:46,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:46,546 INFO L85 PathProgramCache]: Analyzing trace with hash 695625045, now seen corresponding path program 1 times [2023-04-02 06:31:46,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:46,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190274681] [2023-04-02 06:31:46,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:46,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:47,003 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 06:31:47,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:47,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190274681] [2023-04-02 06:31:47,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190274681] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:47,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:47,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:47,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814899347] [2023-04-02 06:31:47,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:47,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:47,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:47,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:47,005 INFO L87 Difference]: Start difference. First operand 213 states and 262 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:48,231 INFO L93 Difference]: Finished difference Result 423 states and 553 transitions. [2023-04-02 06:31:48,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:31:48,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:31:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:48,235 INFO L225 Difference]: With dead ends: 423 [2023-04-02 06:31:48,235 INFO L226 Difference]: Without dead ends: 416 [2023-04-02 06:31:48,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:31:48,235 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1477 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:48,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 765 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:31:48,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-04-02 06:31:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 213. [2023-04-02 06:31:48,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.2660098522167487) internal successors, (257), 209 states have internal predecessors, (257), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 260 transitions. [2023-04-02 06:31:48,321 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 260 transitions. Word has length 70 [2023-04-02 06:31:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:48,321 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 260 transitions. [2023-04-02 06:31:48,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 260 transitions. [2023-04-02 06:31:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:31:48,322 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:48,322 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] [2023-04-02 06:31:48,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:31:48,322 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:48,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:48,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1237391661, now seen corresponding path program 1 times [2023-04-02 06:31:48,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:48,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453459709] [2023-04-02 06:31:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:48,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:48,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453459709] [2023-04-02 06:31:48,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453459709] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:48,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:48,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:31:48,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506870194] [2023-04-02 06:31:48,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:48,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:48,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:48,944 INFO L87 Difference]: Start difference. First operand 213 states and 260 transitions. Second operand has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:51,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:51,474 INFO L93 Difference]: Finished difference Result 892 states and 1223 transitions. [2023-04-02 06:31:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:31:51,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:31:51,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:51,477 INFO L225 Difference]: With dead ends: 892 [2023-04-02 06:31:51,478 INFO L226 Difference]: Without dead ends: 820 [2023-04-02 06:31:51,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:31:51,479 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 2767 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:51,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2767 Valid, 1350 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 06:31:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2023-04-02 06:31:51,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 217. [2023-04-02 06:31:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 207 states have (on average 1.2560386473429952) internal successors, (260), 213 states have internal predecessors, (260), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 263 transitions. [2023-04-02 06:31:51,584 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 263 transitions. Word has length 70 [2023-04-02 06:31:51,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:51,584 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 263 transitions. [2023-04-02 06:31:51,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 263 transitions. [2023-04-02 06:31:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:31:51,585 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:51,585 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] [2023-04-02 06:31:51,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:31:51,586 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:51,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:51,586 INFO L85 PathProgramCache]: Analyzing trace with hash 873061368, now seen corresponding path program 1 times [2023-04-02 06:31:51,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:51,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755584313] [2023-04-02 06:31:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:51,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:52,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:52,623 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 06:31:52,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:52,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755584313] [2023-04-02 06:31:52,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755584313] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:52,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:52,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 06:31:52,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521632333] [2023-04-02 06:31:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:52,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 06:31:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 06:31:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-04-02 06:31:52,625 INFO L87 Difference]: Start difference. First operand 217 states and 263 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:55,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:55,826 INFO L93 Difference]: Finished difference Result 737 states and 981 transitions. [2023-04-02 06:31:55,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 06:31:55,827 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:31:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:55,828 INFO L225 Difference]: With dead ends: 737 [2023-04-02 06:31:55,828 INFO L226 Difference]: Without dead ends: 667 [2023-04-02 06:31:55,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=185, Invalid=937, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 06:31:55,829 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 1114 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:55,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 6754 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 06:31:55,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-04-02 06:31:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 224. [2023-04-02 06:31:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 214 states have (on average 1.2570093457943925) internal successors, (269), 220 states have internal predecessors, (269), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2023-04-02 06:31:55,914 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 70 [2023-04-02 06:31:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:55,914 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2023-04-02 06:31:55,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2023-04-02 06:31:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:31:55,915 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:55,915 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] [2023-04-02 06:31:55,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:31:55,915 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:55,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash -762652594, now seen corresponding path program 1 times [2023-04-02 06:31:55,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:55,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750265221] [2023-04-02 06:31:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:56,611 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 06:31:56,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:56,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750265221] [2023-04-02 06:31:56,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750265221] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:56,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:56,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:31:56,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586347561] [2023-04-02 06:31:56,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:56,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:56,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:56,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:56,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:56,613 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:58,022 INFO L93 Difference]: Finished difference Result 377 states and 480 transitions. [2023-04-02 06:31:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:31:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:31:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:58,024 INFO L225 Difference]: With dead ends: 377 [2023-04-02 06:31:58,024 INFO L226 Difference]: Without dead ends: 319 [2023-04-02 06:31:58,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:31:58,025 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1136 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:58,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1192 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 06:31:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-04-02 06:31:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 210. [2023-04-02 06:31:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 201 states have (on average 1.2487562189054726) internal successors, (251), 206 states have internal predecessors, (251), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 254 transitions. [2023-04-02 06:31:58,113 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 254 transitions. Word has length 70 [2023-04-02 06:31:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:58,114 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 254 transitions. [2023-04-02 06:31:58,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 254 transitions. [2023-04-02 06:31:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:31:58,115 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:58,115 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] [2023-04-02 06:31:58,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:31:58,115 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:58,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash -325179072, now seen corresponding path program 1 times [2023-04-02 06:31:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:58,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146598979] [2023-04-02 06:31:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:59,128 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 06:31:59,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146598979] [2023-04-02 06:31:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146598979] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:59,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:59,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-04-02 06:31:59,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260440665] [2023-04-02 06:31:59,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:59,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 06:31:59,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 06:31:59,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2023-04-02 06:31:59,131 INFO L87 Difference]: Start difference. First operand 210 states and 254 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:01,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:01,740 INFO L93 Difference]: Finished difference Result 573 states and 732 transitions. [2023-04-02 06:32:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 06:32:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:32:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:01,742 INFO L225 Difference]: With dead ends: 573 [2023-04-02 06:32:01,742 INFO L226 Difference]: Without dead ends: 515 [2023-04-02 06:32:01,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=307, Invalid=1175, Unknown=0, NotChecked=0, Total=1482 [2023-04-02 06:32:01,743 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1906 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:01,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 3336 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 06:32:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-04-02 06:32:01,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 216. [2023-04-02 06:32:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 207 states have (on average 1.251207729468599) internal successors, (259), 212 states have internal predecessors, (259), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 262 transitions. [2023-04-02 06:32:01,855 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 262 transitions. Word has length 70 [2023-04-02 06:32:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:01,855 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 262 transitions. [2023-04-02 06:32:01,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:01,855 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 262 transitions. [2023-04-02 06:32:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:32:01,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:01,856 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] [2023-04-02 06:32:01,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:32:01,856 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:01,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:01,856 INFO L85 PathProgramCache]: Analyzing trace with hash 11061457, now seen corresponding path program 1 times [2023-04-02 06:32:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:01,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079528166] [2023-04-02 06:32:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:01,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:02,446 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 06:32:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079528166] [2023-04-02 06:32:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079528166] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:02,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:02,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:32:02,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556296046] [2023-04-02 06:32:02,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:02,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 06:32:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 06:32:02,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:32:02,448 INFO L87 Difference]: Start difference. First operand 216 states and 262 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:04,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:04,058 INFO L93 Difference]: Finished difference Result 499 states and 651 transitions. [2023-04-02 06:32:04,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:32:04,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:32:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:04,059 INFO L225 Difference]: With dead ends: 499 [2023-04-02 06:32:04,059 INFO L226 Difference]: Without dead ends: 394 [2023-04-02 06:32:04,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-04-02 06:32:04,060 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1318 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:04,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 914 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:32:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-04-02 06:32:04,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 165. [2023-04-02 06:32:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 159 states have (on average 1.2452830188679245) internal successors, (198), 161 states have internal predecessors, (198), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 201 transitions. [2023-04-02 06:32:04,136 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 201 transitions. Word has length 70 [2023-04-02 06:32:04,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:04,137 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 201 transitions. [2023-04-02 06:32:04,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 201 transitions. [2023-04-02 06:32:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:32:04,138 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:04,138 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] [2023-04-02 06:32:04,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:32:04,138 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:04,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash -715289416, now seen corresponding path program 1 times [2023-04-02 06:32:04,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:04,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856426544] [2023-04-02 06:32:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:04,515 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 06:32:04,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:04,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856426544] [2023-04-02 06:32:04,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856426544] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:04,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:04,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:32:04,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707911249] [2023-04-02 06:32:04,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:04,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:32:04,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:32:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:32:04,517 INFO L87 Difference]: Start difference. First operand 165 states and 201 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:05,530 INFO L93 Difference]: Finished difference Result 326 states and 420 transitions. [2023-04-02 06:32:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 06:32:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:32:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:05,531 INFO L225 Difference]: With dead ends: 326 [2023-04-02 06:32:05,531 INFO L226 Difference]: Without dead ends: 254 [2023-04-02 06:32:05,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:32:05,532 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 632 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:05,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 598 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:32:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-04-02 06:32:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 161. [2023-04-02 06:32:05,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 155 states have (on average 1.238709677419355) internal successors, (192), 157 states have internal predecessors, (192), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 195 transitions. [2023-04-02 06:32:05,628 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 195 transitions. Word has length 71 [2023-04-02 06:32:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:05,629 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 195 transitions. [2023-04-02 06:32:05,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 195 transitions. [2023-04-02 06:32:05,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:32:05,629 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:05,629 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] [2023-04-02 06:32:05,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:32:05,630 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:05,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:05,630 INFO L85 PathProgramCache]: Analyzing trace with hash 856611848, now seen corresponding path program 1 times [2023-04-02 06:32:05,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:05,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259431722] [2023-04-02 06:32:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:06,663 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 06:32:06,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259431722] [2023-04-02 06:32:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259431722] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:06,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:06,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-04-02 06:32:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216750415] [2023-04-02 06:32:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:06,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 06:32:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 06:32:06,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:32:06,665 INFO L87 Difference]: Start difference. First operand 161 states and 195 transitions. Second operand has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:10,380 INFO L93 Difference]: Finished difference Result 622 states and 823 transitions. [2023-04-02 06:32:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:32:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:32:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:10,382 INFO L225 Difference]: With dead ends: 622 [2023-04-02 06:32:10,382 INFO L226 Difference]: Without dead ends: 616 [2023-04-02 06:32:10,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 06:32:10,383 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1541 mSDsluCounter, 5589 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 3415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:10,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 6067 Invalid, 3415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-02 06:32:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-04-02 06:32:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 172. [2023-04-02 06:32:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 166 states have (on average 1.2409638554216869) internal successors, (206), 168 states have internal predecessors, (206), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2023-04-02 06:32:10,477 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 72 [2023-04-02 06:32:10,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:10,477 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2023-04-02 06:32:10,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2023-04-02 06:32:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:32:10,478 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:10,478 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] [2023-04-02 06:32:10,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:32:10,478 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:10,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash 736380400, now seen corresponding path program 1 times [2023-04-02 06:32:10,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405719964] [2023-04-02 06:32:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:11,641 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 06:32:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405719964] [2023-04-02 06:32:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405719964] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:11,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:11,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-04-02 06:32:11,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590611712] [2023-04-02 06:32:11,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:11,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 06:32:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 06:32:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:32:11,643 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:15,079 INFO L93 Difference]: Finished difference Result 502 states and 650 transitions. [2023-04-02 06:32:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:32:15,079 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:32:15,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:15,081 INFO L225 Difference]: With dead ends: 502 [2023-04-02 06:32:15,081 INFO L226 Difference]: Without dead ends: 494 [2023-04-02 06:32:15,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=335, Invalid=1557, Unknown=0, NotChecked=0, Total=1892 [2023-04-02 06:32:15,082 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1588 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:15,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 4535 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 06:32:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-04-02 06:32:15,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 176. [2023-04-02 06:32:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 170 states have (on average 1.2411764705882353) internal successors, (211), 172 states have internal predecessors, (211), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2023-04-02 06:32:15,165 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 72 [2023-04-02 06:32:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:15,165 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2023-04-02 06:32:15,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:15,165 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2023-04-02 06:32:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-02 06:32:15,166 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:15,166 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] [2023-04-02 06:32:15,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:32:15,166 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:15,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:15,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1031827128, now seen corresponding path program 1 times [2023-04-02 06:32:15,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:15,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781423899] [2023-04-02 06:32:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:15,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:16,037 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 06:32:16,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:16,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781423899] [2023-04-02 06:32:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781423899] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:16,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 06:32:16,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190644426] [2023-04-02 06:32:16,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:16,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 06:32:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 06:32:16,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-04-02 06:32:16,038 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:18,756 INFO L93 Difference]: Finished difference Result 350 states and 445 transitions. [2023-04-02 06:32:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 06:32:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2023-04-02 06:32:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:18,762 INFO L225 Difference]: With dead ends: 350 [2023-04-02 06:32:18,762 INFO L226 Difference]: Without dead ends: 338 [2023-04-02 06:32:18,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=257, Invalid=1003, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:32:18,763 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 829 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:18,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2543 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:32:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-04-02 06:32:18,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 171. [2023-04-02 06:32:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 165 states have (on average 1.2363636363636363) internal successors, (204), 167 states have internal predecessors, (204), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 207 transitions. [2023-04-02 06:32:18,877 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 207 transitions. Word has length 73 [2023-04-02 06:32:18,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:18,877 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 207 transitions. [2023-04-02 06:32:18,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 207 transitions. [2023-04-02 06:32:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-02 06:32:18,878 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:18,878 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] [2023-04-02 06:32:18,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:32:18,878 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:18,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2010175304, now seen corresponding path program 1 times [2023-04-02 06:32:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:18,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333407449] [2023-04-02 06:32:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:18,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:19,494 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 06:32:19,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:19,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333407449] [2023-04-02 06:32:19,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333407449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:19,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:19,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:32:19,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965092523] [2023-04-02 06:32:19,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:19,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:32:19,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:19,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:32:19,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:32:19,496 INFO L87 Difference]: Start difference. First operand 171 states and 207 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:21,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:21,319 INFO L93 Difference]: Finished difference Result 360 states and 477 transitions. [2023-04-02 06:32:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:32:21,319 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2023-04-02 06:32:21,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:21,320 INFO L225 Difference]: With dead ends: 360 [2023-04-02 06:32:21,320 INFO L226 Difference]: Without dead ends: 354 [2023-04-02 06:32:21,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:32:21,326 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 790 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:21,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2117 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 06:32:21,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-04-02 06:32:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 154. [2023-04-02 06:32:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.2348993288590604) internal successors, (184), 150 states have internal predecessors, (184), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2023-04-02 06:32:21,421 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 73 [2023-04-02 06:32:21,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:21,422 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2023-04-02 06:32:21,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2023-04-02 06:32:21,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-02 06:32:21,422 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:21,422 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] [2023-04-02 06:32:21,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:32:21,423 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:21,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2040095067, now seen corresponding path program 1 times [2023-04-02 06:32:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:21,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571542195] [2023-04-02 06:32:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:22,259 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 06:32:22,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571542195] [2023-04-02 06:32:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571542195] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:22,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 06:32:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872509487] [2023-04-02 06:32:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:22,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 06:32:22,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 06:32:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-04-02 06:32:22,260 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:24,515 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2023-04-02 06:32:24,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 06:32:24,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2023-04-02 06:32:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:24,516 INFO L225 Difference]: With dead ends: 306 [2023-04-02 06:32:24,516 INFO L226 Difference]: Without dead ends: 292 [2023-04-02 06:32:24,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 06:32:24,517 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 889 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:24,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2659 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 06:32:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-04-02 06:32:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 131. [2023-04-02 06:32:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 127 states have (on average 1.2519685039370079) internal successors, (159), 127 states have internal predecessors, (159), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2023-04-02 06:32:24,593 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 73 [2023-04-02 06:32:24,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:24,594 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2023-04-02 06:32:24,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2023-04-02 06:32:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 06:32:24,594 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:24,595 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] [2023-04-02 06:32:24,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 06:32:24,595 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:24,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2066105586, now seen corresponding path program 1 times [2023-04-02 06:32:24,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:24,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179811746] [2023-04-02 06:32:24,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:24,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:24,879 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 06:32:24,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:24,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179811746] [2023-04-02 06:32:24,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179811746] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:24,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:24,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:24,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873477813] [2023-04-02 06:32:24,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:24,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:24,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:24,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:24,880 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:25,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:25,879 INFO L93 Difference]: Finished difference Result 563 states and 802 transitions. [2023-04-02 06:32:25,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 06:32:25,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2023-04-02 06:32:25,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:25,881 INFO L225 Difference]: With dead ends: 563 [2023-04-02 06:32:25,881 INFO L226 Difference]: Without dead ends: 509 [2023-04-02 06:32:25,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:32:25,882 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 946 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:25,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 828 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-04-02 06:32:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 183. [2023-04-02 06:32:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 179 states have (on average 1.318435754189944) internal successors, (236), 179 states have internal predecessors, (236), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 239 transitions. [2023-04-02 06:32:26,047 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 239 transitions. Word has length 95 [2023-04-02 06:32:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:26,048 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 239 transitions. [2023-04-02 06:32:26,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 239 transitions. [2023-04-02 06:32:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 06:32:26,048 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:26,049 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] [2023-04-02 06:32:26,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-04-02 06:32:26,049 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:26,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1020765083, now seen corresponding path program 1 times [2023-04-02 06:32:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948420304] [2023-04-02 06:32:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:26,373 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 06:32:26,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:26,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948420304] [2023-04-02 06:32:26,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948420304] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:26,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:26,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:26,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733210775] [2023-04-02 06:32:26,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:26,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:26,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:26,375 INFO L87 Difference]: Start difference. First operand 183 states and 239 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:27,592 INFO L93 Difference]: Finished difference Result 661 states and 945 transitions. [2023-04-02 06:32:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:32:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2023-04-02 06:32:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:27,594 INFO L225 Difference]: With dead ends: 661 [2023-04-02 06:32:27,594 INFO L226 Difference]: Without dead ends: 555 [2023-04-02 06:32:27,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:32:27,595 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 636 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:27,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 660 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:32:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-04-02 06:32:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 287. [2023-04-02 06:32:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 283 states have (on average 1.3816254416961131) internal successors, (391), 283 states have internal predecessors, (391), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 394 transitions. [2023-04-02 06:32:27,848 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 394 transitions. Word has length 97 [2023-04-02 06:32:27,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:27,848 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 394 transitions. [2023-04-02 06:32:27,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:27,848 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 394 transitions. [2023-04-02 06:32:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 06:32:27,849 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:27,849 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] [2023-04-02 06:32:27,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-04-02 06:32:27,849 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:27,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash 834277862, now seen corresponding path program 1 times [2023-04-02 06:32:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:27,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224725895] [2023-04-02 06:32:27,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:27,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:28,167 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 06:32:28,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:28,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224725895] [2023-04-02 06:32:28,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224725895] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:28,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:28,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059946220] [2023-04-02 06:32:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:28,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:28,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:28,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:28,169 INFO L87 Difference]: Start difference. First operand 287 states and 394 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:28,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:28,926 INFO L93 Difference]: Finished difference Result 499 states and 707 transitions. [2023-04-02 06:32:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:32:28,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2023-04-02 06:32:28,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:28,927 INFO L225 Difference]: With dead ends: 499 [2023-04-02 06:32:28,927 INFO L226 Difference]: Without dead ends: 289 [2023-04-02 06:32:28,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:32:28,928 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:28,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 385 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-04-02 06:32:29,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287. [2023-04-02 06:32:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 283 states have (on average 1.3745583038869258) internal successors, (389), 283 states have internal predecessors, (389), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 392 transitions. [2023-04-02 06:32:29,246 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 392 transitions. Word has length 97 [2023-04-02 06:32:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:29,246 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 392 transitions. [2023-04-02 06:32:29,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 392 transitions. [2023-04-02 06:32:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 06:32:29,247 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:29,247 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] [2023-04-02 06:32:29,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-04-02 06:32:29,248 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:29,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash 767784350, now seen corresponding path program 1 times [2023-04-02 06:32:29,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:29,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663131392] [2023-04-02 06:32:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:29,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:29,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:29,485 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 06:32:29,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:29,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663131392] [2023-04-02 06:32:29,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663131392] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:29,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:29,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:32:29,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091127212] [2023-04-02 06:32:29,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:29,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:32:29,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:29,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:32:29,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:32:29,487 INFO L87 Difference]: Start difference. First operand 287 states and 392 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:30,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:30,400 INFO L93 Difference]: Finished difference Result 681 states and 968 transitions. [2023-04-02 06:32:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:30,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2023-04-02 06:32:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:30,402 INFO L225 Difference]: With dead ends: 681 [2023-04-02 06:32:30,402 INFO L226 Difference]: Without dead ends: 471 [2023-04-02 06:32:30,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:30,403 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 91 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:30,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 254 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-04-02 06:32:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 465. [2023-04-02 06:32:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 461 states have (on average 1.3882863340563991) internal successors, (640), 461 states have internal predecessors, (640), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 643 transitions. [2023-04-02 06:32:30,869 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 643 transitions. Word has length 97 [2023-04-02 06:32:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:30,870 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 643 transitions. [2023-04-02 06:32:30,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 643 transitions. [2023-04-02 06:32:30,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 06:32:30,870 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:30,871 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] [2023-04-02 06:32:30,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-04-02 06:32:30,871 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:30,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:30,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1399052901, now seen corresponding path program 1 times [2023-04-02 06:32:30,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:30,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020769627] [2023-04-02 06:32:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:30,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:31,129 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 06:32:31,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020769627] [2023-04-02 06:32:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020769627] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:31,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:31,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:31,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859058272] [2023-04-02 06:32:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:31,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:31,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:31,130 INFO L87 Difference]: Start difference. First operand 465 states and 643 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:32,991 INFO L93 Difference]: Finished difference Result 1344 states and 1911 transitions. [2023-04-02 06:32:32,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:32:32,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2023-04-02 06:32:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:32,994 INFO L225 Difference]: With dead ends: 1344 [2023-04-02 06:32:32,994 INFO L226 Difference]: Without dead ends: 1149 [2023-04-02 06:32:32,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:32:32,995 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 609 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:32,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 673 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:32:32,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-04-02 06:32:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 755. [2023-04-02 06:32:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 751 states have (on average 1.4087882822902795) internal successors, (1058), 751 states have internal predecessors, (1058), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1061 transitions. [2023-04-02 06:32:33,823 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1061 transitions. Word has length 97 [2023-04-02 06:32:33,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:33,823 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 1061 transitions. [2023-04-02 06:32:33,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1061 transitions. [2023-04-02 06:32:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 06:32:33,824 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:33,824 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] [2023-04-02 06:32:33,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-04-02 06:32:33,824 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:33,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -656679323, now seen corresponding path program 1 times [2023-04-02 06:32:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336281648] [2023-04-02 06:32:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:34,086 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 06:32:34,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:34,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336281648] [2023-04-02 06:32:34,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336281648] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804298406] [2023-04-02 06:32:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:34,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:34,087 INFO L87 Difference]: Start difference. First operand 755 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:36,183 INFO L93 Difference]: Finished difference Result 1537 states and 2190 transitions. [2023-04-02 06:32:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:32:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2023-04-02 06:32:36,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:36,186 INFO L225 Difference]: With dead ends: 1537 [2023-04-02 06:32:36,186 INFO L226 Difference]: Without dead ends: 1342 [2023-04-02 06:32:36,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:32:36,187 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 578 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:36,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 781 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:32:36,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-04-02 06:32:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 948. [2023-04-02 06:32:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 944 states have (on average 1.416313559322034) internal successors, (1337), 944 states have internal predecessors, (1337), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1340 transitions. [2023-04-02 06:32:37,235 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1340 transitions. Word has length 97 [2023-04-02 06:32:37,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:37,235 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1340 transitions. [2023-04-02 06:32:37,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1340 transitions. [2023-04-02 06:32:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:32:37,236 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:37,236 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] [2023-04-02 06:32:37,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-04-02 06:32:37,236 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:37,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:37,237 INFO L85 PathProgramCache]: Analyzing trace with hash -348754032, now seen corresponding path program 1 times [2023-04-02 06:32:37,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:37,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234032328] [2023-04-02 06:32:37,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:37,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:37,527 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 06:32:37,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234032328] [2023-04-02 06:32:37,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234032328] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:37,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:37,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:32:37,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362224672] [2023-04-02 06:32:37,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:37,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:32:37,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:37,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:32:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:32:37,529 INFO L87 Difference]: Start difference. First operand 948 states and 1340 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:40,055 INFO L93 Difference]: Finished difference Result 2618 states and 3730 transitions. [2023-04-02 06:32:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:32:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:40,060 INFO L225 Difference]: With dead ends: 2618 [2023-04-02 06:32:40,060 INFO L226 Difference]: Without dead ends: 1747 [2023-04-02 06:32:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:40,062 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 75 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 335 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-04-02 06:32:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1673. [2023-04-02 06:32:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1669 states have (on average 1.4140203714799282) internal successors, (2360), 1669 states have internal predecessors, (2360), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2363 transitions. [2023-04-02 06:32:41,996 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2363 transitions. Word has length 98 [2023-04-02 06:32:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:41,997 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2363 transitions. [2023-04-02 06:32:41,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2363 transitions. [2023-04-02 06:32:41,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:32:41,997 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:41,997 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] [2023-04-02 06:32:41,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-04-02 06:32:41,998 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:41,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:41,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2049673712, now seen corresponding path program 1 times [2023-04-02 06:32:41,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:41,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941515381] [2023-04-02 06:32:41,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:41,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:42,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:42,244 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 06:32:42,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941515381] [2023-04-02 06:32:42,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941515381] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:42,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:42,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:32:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961600839] [2023-04-02 06:32:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:42,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:32:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:32:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:32:42,246 INFO L87 Difference]: Start difference. First operand 1673 states and 2363 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:46,395 INFO L93 Difference]: Finished difference Result 4721 states and 6673 transitions. [2023-04-02 06:32:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:46,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2023-04-02 06:32:46,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:46,403 INFO L225 Difference]: With dead ends: 4721 [2023-04-02 06:32:46,403 INFO L226 Difference]: Without dead ends: 3125 [2023-04-02 06:32:46,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:46,405 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 68 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:46,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 335 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:46,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2023-04-02 06:32:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 2979. [2023-04-02 06:32:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2975 states have (on average 1.4023529411764706) internal successors, (4172), 2975 states have internal predecessors, (4172), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4175 transitions. [2023-04-02 06:32:49,892 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4175 transitions. Word has length 99 [2023-04-02 06:32:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:49,892 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4175 transitions. [2023-04-02 06:32:49,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:49,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4175 transitions. [2023-04-02 06:32:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:32:49,893 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:49,893 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] [2023-04-02 06:32:49,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-04-02 06:32:49,894 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:49,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1010796612, now seen corresponding path program 1 times [2023-04-02 06:32:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:49,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740216788] [2023-04-02 06:32:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:50,177 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 06:32:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740216788] [2023-04-02 06:32:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740216788] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:32:50,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561643482] [2023-04-02 06:32:50,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:50,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:32:50,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:50,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:32:50,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:32:50,178 INFO L87 Difference]: Start difference. First operand 2979 states and 4175 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:57,388 INFO L93 Difference]: Finished difference Result 8495 states and 11857 transitions. [2023-04-02 06:32:57,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:57,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:32:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:57,405 INFO L225 Difference]: With dead ends: 8495 [2023-04-02 06:32:57,405 INFO L226 Difference]: Without dead ends: 5593 [2023-04-02 06:32:57,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:57,411 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 58 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:57,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 335 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:32:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2023-04-02 06:33:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5303. [2023-04-02 06:33:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5299 states have (on average 1.382902434421589) internal successors, (7328), 5299 states have internal predecessors, (7328), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 7331 transitions. [2023-04-02 06:33:03,840 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 7331 transitions. Word has length 100 [2023-04-02 06:33:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:33:03,840 INFO L495 AbstractCegarLoop]: Abstraction has 5303 states and 7331 transitions. [2023-04-02 06:33:03,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 7331 transitions. [2023-04-02 06:33:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 06:33:03,841 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:33:03,841 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] [2023-04-02 06:33:03,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-04-02 06:33:03,841 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:33:03,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:33:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1378601572, now seen corresponding path program 1 times [2023-04-02 06:33:03,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:33:03,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851123017] [2023-04-02 06:33:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:33:03,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:33:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:33:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:04,172 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 06:33:04,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:33:04,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851123017] [2023-04-02 06:33:04,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851123017] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:33:04,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:33:04,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:33:04,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548710320] [2023-04-02 06:33:04,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:33:04,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:33:04,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:33:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:33:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:33:04,174 INFO L87 Difference]: Start difference. First operand 5303 states and 7331 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:33:16,278 INFO L93 Difference]: Finished difference Result 9359 states and 12851 transitions. [2023-04-02 06:33:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:33:16,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2023-04-02 06:33:16,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:33:16,296 INFO L225 Difference]: With dead ends: 9359 [2023-04-02 06:33:16,296 INFO L226 Difference]: Without dead ends: 9357 [2023-04-02 06:33:16,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:33:16,307 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 257 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:33:16,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 852 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:33:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9357 states. [2023-04-02 06:33:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9357 to 5495. [2023-04-02 06:33:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5491 states have (on average 1.3622291021671826) internal successors, (7480), 5491 states have internal predecessors, (7480), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:23,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 7483 transitions. [2023-04-02 06:33:23,134 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 7483 transitions. Word has length 101 [2023-04-02 06:33:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:33:23,134 INFO L495 AbstractCegarLoop]: Abstraction has 5495 states and 7483 transitions. [2023-04-02 06:33:23,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:23,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 7483 transitions. [2023-04-02 06:33:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 06:33:23,135 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:33:23,136 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] [2023-04-02 06:33:23,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-04-02 06:33:23,136 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:33:23,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:33:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash -786807910, now seen corresponding path program 1 times [2023-04-02 06:33:23,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:33:23,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145779377] [2023-04-02 06:33:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:33:23,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:33:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:33:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:23,517 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 06:33:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:33:23,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145779377] [2023-04-02 06:33:23,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145779377] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:33:23,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:33:23,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:33:23,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285523060] [2023-04-02 06:33:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:33:23,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:33:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:33:23,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:33:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:33:23,520 INFO L87 Difference]: Start difference. First operand 5495 states and 7483 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:33:35,463 INFO L93 Difference]: Finished difference Result 10337 states and 14144 transitions. [2023-04-02 06:33:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:33:35,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2023-04-02 06:33:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:33:35,480 INFO L225 Difference]: With dead ends: 10337 [2023-04-02 06:33:35,480 INFO L226 Difference]: Without dead ends: 9127 [2023-04-02 06:33:35,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:33:35,484 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 585 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:33:35,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 704 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:33:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9127 states. [2023-04-02 06:33:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9127 to 6703. [2023-04-02 06:33:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 6699 states have (on average 1.3625914315569487) internal successors, (9128), 6699 states have internal predecessors, (9128), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9131 transitions. [2023-04-02 06:33:43,968 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9131 transitions. Word has length 101 [2023-04-02 06:33:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:33:43,968 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9131 transitions. [2023-04-02 06:33:43,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9131 transitions. [2023-04-02 06:33:43,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:33:43,969 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:33:43,969 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] [2023-04-02 06:33:43,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-04-02 06:33:43,969 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:33:43,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:33:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash -751565460, now seen corresponding path program 1 times [2023-04-02 06:33:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:33:43,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949588655] [2023-04-02 06:33:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:33:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:33:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:33:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:33:44,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:33:44,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949588655] [2023-04-02 06:33:44,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949588655] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:33:44,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:33:44,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:33:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438910168] [2023-04-02 06:33:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:33:44,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:33:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:33:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:33:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:33:44,294 INFO L87 Difference]: Start difference. First operand 6703 states and 9131 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:33:58,755 INFO L93 Difference]: Finished difference Result 17403 states and 23657 transitions. [2023-04-02 06:33:58,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:33:58,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:33:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:33:58,778 INFO L225 Difference]: With dead ends: 17403 [2023-04-02 06:33:58,779 INFO L226 Difference]: Without dead ends: 10777 [2023-04-02 06:33:58,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:33:58,789 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 79 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:33:58,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 338 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:33:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2023-04-02 06:34:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 10071. [2023-04-02 06:34:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10071 states, 10067 states have (on average 1.3457832522101918) internal successors, (13548), 10067 states have internal predecessors, (13548), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:34:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10071 states to 10071 states and 13551 transitions. [2023-04-02 06:34:11,915 INFO L78 Accepts]: Start accepts. Automaton has 10071 states and 13551 transitions. Word has length 102 [2023-04-02 06:34:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:34:11,915 INFO L495 AbstractCegarLoop]: Abstraction has 10071 states and 13551 transitions. [2023-04-02 06:34:11,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:34:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 10071 states and 13551 transitions. [2023-04-02 06:34:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-02 06:34:11,919 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:34:11,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:34:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-04-02 06:34:11,920 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:34:11,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:34:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -867801679, now seen corresponding path program 1 times [2023-04-02 06:34:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:34:11,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397518495] [2023-04-02 06:34:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:34:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:34:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:34:12,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:34:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:34:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:34:12,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:34:12,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397518495] [2023-04-02 06:34:12,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397518495] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:34:12,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:34:12,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:34:12,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138738511] [2023-04-02 06:34:12,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:34:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:34:12,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:34:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:34:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:34:12,211 INFO L87 Difference]: Start difference. First operand 10071 states and 13551 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:34:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:34:25,580 INFO L93 Difference]: Finished difference Result 20067 states and 27021 transitions. [2023-04-02 06:34:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:34:25,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2023-04-02 06:34:25,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:34:25,591 INFO L225 Difference]: With dead ends: 20067 [2023-04-02 06:34:25,592 INFO L226 Difference]: Without dead ends: 10073 [2023-04-02 06:34:25,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:34:25,602 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 68 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:34:25,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 316 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 06:34:25,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10073 states. [2023-04-02 06:34:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10073 to 10071. [2023-04-02 06:34:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10071 states, 10067 states have (on average 1.3283003874043906) internal successors, (13372), 10067 states have internal predecessors, (13372), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:34:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10071 states to 10071 states and 13375 transitions. [2023-04-02 06:34:38,656 INFO L78 Accepts]: Start accepts. Automaton has 10071 states and 13375 transitions. Word has length 128 [2023-04-02 06:34:38,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:34:38,657 INFO L495 AbstractCegarLoop]: Abstraction has 10071 states and 13375 transitions. [2023-04-02 06:34:38,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:34:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10071 states and 13375 transitions. [2023-04-02 06:34:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-02 06:34:38,660 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:34:38,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:38,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-04-02 06:34:38,660 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:34:38,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:34:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 445772050, now seen corresponding path program 1 times [2023-04-02 06:34:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:34:38,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911995817] [2023-04-02 06:34:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:34:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:34:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat