/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:01:43,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:01:43,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:01:43,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:01:43,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:01:43,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:01:43,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:01:43,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:01:43,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:01:43,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:01:43,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:01:43,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:01:43,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:01:43,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:01:43,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:01:43,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:01:43,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:01:43,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:01:43,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:01:43,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:01:43,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:01:43,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:01:43,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:01:43,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:01:43,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:01:43,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:01:43,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:01:43,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:01:43,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:01:43,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:01:43,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:01:43,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:01:43,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:01:43,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:01:43,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:01:43,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:01:43,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:01:43,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:01:43,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:01:43,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:01:43,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:01:43,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:01:43,521 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:01:43,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:01:43,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:01:43,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:01:43,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:01:43,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:01:43,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:01:43,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:01:43,524 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:01:43,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:01:43,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:01:43,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:01:43,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:01:43,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:01:43,527 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:01:43,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:01:43,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:01:43,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:01:43,771 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:01:43,771 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:01:43,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c [2023-04-02 05:01:44,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:01:45,061 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:01:45,061 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c [2023-04-02 05:01:45,071 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a3fa68ea/c402997531364f6ba5310f70538440ac/FLAGfcda2eb47 [2023-04-02 05:01:45,084 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a3fa68ea/c402997531364f6ba5310f70538440ac [2023-04-02 05:01:45,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:01:45,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:01:45,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:01:45,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:01:45,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:01:45,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fc35fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45, skipping insertion in model container [2023-04-02 05:01:45,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:01:45,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:01:45,303 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c[12968,12981] [2023-04-02 05:01:45,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:01:45,317 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:01:45,366 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c[12968,12981] [2023-04-02 05:01:45,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:01:45,377 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:01:45,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45 WrapperNode [2023-04-02 05:01:45,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:01:45,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:01:45,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:01:45,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:01:45,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:01:45,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:01:45,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:01:45,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:01:45,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (1/1) ... [2023-04-02 05:01:45,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:01:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:45,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 05:01:45,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 05:01:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:01:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:01:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:01:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:01:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:01:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:01:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:01:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:01:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:01:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:01:45,575 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:01:45,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:01:46,024 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:01:46,030 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:01:46,030 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:01:46,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:01:46 BoogieIcfgContainer [2023-04-02 05:01:46,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:01:46,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:01:46,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:01:46,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:01:46,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:01:45" (1/3) ... [2023-04-02 05:01:46,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e3efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:01:46, skipping insertion in model container [2023-04-02 05:01:46,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:01:45" (2/3) ... [2023-04-02 05:01:46,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e3efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:01:46, skipping insertion in model container [2023-04-02 05:01:46,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:01:46" (3/3) ... [2023-04-02 05:01:46,037 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.UNBOUNDED.pals.c [2023-04-02 05:01:46,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:01:46,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:01:46,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:01:46,086 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;@410b39e8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:01:46,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:01:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 132 states have (on average 1.7196969696969697) internal successors, (227), 134 states have internal predecessors, (227), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:01:46,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-02 05:01:46,098 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:46,099 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] [2023-04-02 05:01:46,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:46,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1409628654, now seen corresponding path program 1 times [2023-04-02 05:01:46,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:46,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881082236] [2023-04-02 05:01:46,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:46,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:01:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 05:01:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:01:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:01:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:46,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881082236] [2023-04-02 05:01:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881082236] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:46,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:01:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363562968] [2023-04-02 05:01:46,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:46,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:01:46,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:46,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:01:46,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:01:46,882 INFO L87 Difference]: Start difference. First operand has 152 states, 132 states have (on average 1.7196969696969697) internal successors, (227), 134 states have internal predecessors, (227), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:47,686 INFO L93 Difference]: Finished difference Result 242 states and 387 transitions. [2023-04-02 05:01:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:01:47,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2023-04-02 05:01:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:47,694 INFO L225 Difference]: With dead ends: 242 [2023-04-02 05:01:47,694 INFO L226 Difference]: Without dead ends: 156 [2023-04-02 05:01:47,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:01:47,698 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 281 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:47,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 41 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:01:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-04-02 05:01:47,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 147. [2023-04-02 05:01:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 130 states have internal predecessors, (220), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:01:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 237 transitions. [2023-04-02 05:01:47,742 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 237 transitions. Word has length 62 [2023-04-02 05:01:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:47,742 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 237 transitions. [2023-04-02 05:01:47,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 237 transitions. [2023-04-02 05:01:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-02 05:01:47,744 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:47,744 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] [2023-04-02 05:01:47,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:01:47,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:47,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:47,745 INFO L85 PathProgramCache]: Analyzing trace with hash 565623152, now seen corresponding path program 1 times [2023-04-02 05:01:47,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:47,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013648533] [2023-04-02 05:01:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:47,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:01:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 05:01:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:01:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:01:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:48,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013648533] [2023-04-02 05:01:48,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013648533] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:48,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:48,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:01:48,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545084111] [2023-04-02 05:01:48,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:48,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:01:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:01:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:01:48,193 INFO L87 Difference]: Start difference. First operand 147 states and 237 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:01:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:49,757 INFO L93 Difference]: Finished difference Result 240 states and 379 transitions. [2023-04-02 05:01:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 05:01:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2023-04-02 05:01:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:49,760 INFO L225 Difference]: With dead ends: 240 [2023-04-02 05:01:49,760 INFO L226 Difference]: Without dead ends: 156 [2023-04-02 05:01:49,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:01:49,761 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 290 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:49,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 122 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:01:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-04-02 05:01:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 147. [2023-04-02 05:01:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.496124031007752) internal successors, (193), 130 states have internal predecessors, (193), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:01:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 210 transitions. [2023-04-02 05:01:49,778 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 210 transitions. Word has length 62 [2023-04-02 05:01:49,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:49,778 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 210 transitions. [2023-04-02 05:01:49,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:01:49,779 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 210 transitions. [2023-04-02 05:01:49,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 05:01:49,780 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:49,780 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] [2023-04-02 05:01:49,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:01:49,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:49,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:49,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1895131975, now seen corresponding path program 1 times [2023-04-02 05:01:49,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:49,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119768108] [2023-04-02 05:01:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:49,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:01:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:01:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:01:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:01:50,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:50,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119768108] [2023-04-02 05:01:50,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119768108] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:50,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:50,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:01:50,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142083370] [2023-04-02 05:01:50,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:50,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:50,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:50,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:01:50,376 INFO L87 Difference]: Start difference. First operand 147 states and 210 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:53,925 INFO L93 Difference]: Finished difference Result 918 states and 1415 transitions. [2023-04-02 05:01:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-04-02 05:01:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2023-04-02 05:01:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:53,936 INFO L225 Difference]: With dead ends: 918 [2023-04-02 05:01:53,937 INFO L226 Difference]: Without dead ends: 840 [2023-04-02 05:01:53,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:01:53,942 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2105 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:53,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 131 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:01:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-04-02 05:01:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 523. [2023-04-02 05:01:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 449 states have (on average 1.5924276169265033) internal successors, (715), 456 states have internal predecessors, (715), 34 states have call successors, (34), 34 states have call predecessors, (34), 39 states have return successors, (55), 33 states have call predecessors, (55), 33 states have call successors, (55) [2023-04-02 05:01:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 804 transitions. [2023-04-02 05:01:54,040 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 804 transitions. Word has length 88 [2023-04-02 05:01:54,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:54,040 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 804 transitions. [2023-04-02 05:01:54,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 804 transitions. [2023-04-02 05:01:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 05:01:54,042 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:54,042 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] [2023-04-02 05:01:54,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:01:54,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:54,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:54,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1348372586, now seen corresponding path program 1 times [2023-04-02 05:01:54,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:54,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007687672] [2023-04-02 05:01:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:54,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:01:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:01:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:01:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:01:54,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:54,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007687672] [2023-04-02 05:01:54,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007687672] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:54,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:54,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:01:54,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543652885] [2023-04-02 05:01:54,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:54,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:01:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:54,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:01:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:01:54,361 INFO L87 Difference]: Start difference. First operand 523 states and 804 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:56,949 INFO L93 Difference]: Finished difference Result 1773 states and 2736 transitions. [2023-04-02 05:01:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:01:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2023-04-02 05:01:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:56,957 INFO L225 Difference]: With dead ends: 1773 [2023-04-02 05:01:56,957 INFO L226 Difference]: Without dead ends: 1319 [2023-04-02 05:01:56,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:01:56,968 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1169 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:56,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 87 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:01:56,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2023-04-02 05:01:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1170. [2023-04-02 05:01:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 992 states have (on average 1.592741935483871) internal successors, (1580), 1013 states have internal predecessors, (1580), 79 states have call successors, (79), 79 states have call predecessors, (79), 98 states have return successors, (150), 78 states have call predecessors, (150), 78 states have call successors, (150) [2023-04-02 05:01:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1809 transitions. [2023-04-02 05:01:57,076 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1809 transitions. Word has length 89 [2023-04-02 05:01:57,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:57,076 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 1809 transitions. [2023-04-02 05:01:57,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:01:57,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1809 transitions. [2023-04-02 05:01:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 05:01:57,078 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:57,079 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] [2023-04-02 05:01:57,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:01:57,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:57,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1527015774, now seen corresponding path program 1 times [2023-04-02 05:01:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976362033] [2023-04-02 05:01:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:57,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:01:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:01:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:01:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:01:57,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:57,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976362033] [2023-04-02 05:01:57,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976362033] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:57,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:57,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:01:57,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164088741] [2023-04-02 05:01:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:57,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:01:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:01:57,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:01:57,490 INFO L87 Difference]: Start difference. First operand 1170 states and 1809 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:00,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:00,396 INFO L93 Difference]: Finished difference Result 7287 states and 11244 transitions. [2023-04-02 05:02:00,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:02:00,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2023-04-02 05:02:00,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:00,417 INFO L225 Difference]: With dead ends: 7287 [2023-04-02 05:02:00,417 INFO L226 Difference]: Without dead ends: 6186 [2023-04-02 05:02:00,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:02:00,420 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1239 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:00,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 103 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:02:00,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2023-04-02 05:02:00,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 5473. [2023-04-02 05:02:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 4600 states have (on average 1.5908695652173912) internal successors, (7318), 4716 states have internal predecessors, (7318), 379 states have call successors, (379), 379 states have call predecessors, (379), 493 states have return successors, (819), 378 states have call predecessors, (819), 378 states have call successors, (819) [2023-04-02 05:02:00,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 8516 transitions. [2023-04-02 05:02:00,867 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 8516 transitions. Word has length 90 [2023-04-02 05:02:00,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:00,868 INFO L495 AbstractCegarLoop]: Abstraction has 5473 states and 8516 transitions. [2023-04-02 05:02:00,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:00,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 8516 transitions. [2023-04-02 05:02:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 05:02:00,869 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:00,869 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] [2023-04-02 05:02:00,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:02:00,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:00,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1576664927, now seen corresponding path program 1 times [2023-04-02 05:02:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:00,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523761780] [2023-04-02 05:02:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:00,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:02:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:02:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:02:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:01,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:01,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523761780] [2023-04-02 05:02:01,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523761780] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:01,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:01,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:02:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42372488] [2023-04-02 05:02:01,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:01,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:02:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:02:01,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:02:01,202 INFO L87 Difference]: Start difference. First operand 5473 states and 8516 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:04,918 INFO L93 Difference]: Finished difference Result 31508 states and 48523 transitions. [2023-04-02 05:02:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:02:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2023-04-02 05:02:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:05,016 INFO L225 Difference]: With dead ends: 31508 [2023-04-02 05:02:05,016 INFO L226 Difference]: Without dead ends: 26104 [2023-04-02 05:02:05,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:02:05,032 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1013 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:05,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 112 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:02:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26104 states. [2023-04-02 05:02:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26104 to 23075. [2023-04-02 05:02:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23075 states, 19279 states have (on average 1.578453239275896) internal successors, (30431), 19858 states have internal predecessors, (30431), 1609 states have call successors, (1609), 1609 states have call predecessors, (1609), 2186 states have return successors, (3828), 1608 states have call predecessors, (3828), 1608 states have call successors, (3828) [2023-04-02 05:02:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23075 states to 23075 states and 35868 transitions. [2023-04-02 05:02:06,881 INFO L78 Accepts]: Start accepts. Automaton has 23075 states and 35868 transitions. Word has length 91 [2023-04-02 05:02:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:06,882 INFO L495 AbstractCegarLoop]: Abstraction has 23075 states and 35868 transitions. [2023-04-02 05:02:06,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 23075 states and 35868 transitions. [2023-04-02 05:02:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 05:02:06,884 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:06,884 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] [2023-04-02 05:02:06,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:02:06,885 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:06,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1002351517, now seen corresponding path program 1 times [2023-04-02 05:02:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895160952] [2023-04-02 05:02:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:02:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:02:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:02:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895160952] [2023-04-02 05:02:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895160952] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:07,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:07,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:02:07,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250567668] [2023-04-02 05:02:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:07,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:02:07,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:07,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:02:07,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:02:07,238 INFO L87 Difference]: Start difference. First operand 23075 states and 35868 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:13,479 INFO L93 Difference]: Finished difference Result 42071 states and 65011 transitions. [2023-04-02 05:02:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-04-02 05:02:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2023-04-02 05:02:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:13,606 INFO L225 Difference]: With dead ends: 42071 [2023-04-02 05:02:13,606 INFO L226 Difference]: Without dead ends: 28822 [2023-04-02 05:02:13,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1617 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=854, Invalid=3976, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:02:13,631 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2755 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:13,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 152 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 05:02:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28822 states. [2023-04-02 05:02:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28822 to 23455. [2023-04-02 05:02:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23455 states, 19608 states have (on average 1.5786923704610363) internal successors, (30955), 20202 states have internal predecessors, (30955), 1627 states have call successors, (1627), 1627 states have call predecessors, (1627), 2219 states have return successors, (3872), 1626 states have call predecessors, (3872), 1626 states have call successors, (3872) [2023-04-02 05:02:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23455 states to 23455 states and 36454 transitions. [2023-04-02 05:02:15,406 INFO L78 Accepts]: Start accepts. Automaton has 23455 states and 36454 transitions. Word has length 93 [2023-04-02 05:02:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:15,406 INFO L495 AbstractCegarLoop]: Abstraction has 23455 states and 36454 transitions. [2023-04-02 05:02:15,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 23455 states and 36454 transitions. [2023-04-02 05:02:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 05:02:15,409 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:15,409 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] [2023-04-02 05:02:15,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:02:15,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:15,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash 132572185, now seen corresponding path program 1 times [2023-04-02 05:02:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:15,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989214749] [2023-04-02 05:02:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:02:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:02:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:02:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989214749] [2023-04-02 05:02:15,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989214749] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:15,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:15,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:02:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510575653] [2023-04-02 05:02:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:15,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:02:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:02:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:02:15,681 INFO L87 Difference]: Start difference. First operand 23455 states and 36454 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:21,586 INFO L93 Difference]: Finished difference Result 90134 states and 140460 transitions. [2023-04-02 05:02:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:02:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2023-04-02 05:02:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:21,805 INFO L225 Difference]: With dead ends: 90134 [2023-04-02 05:02:21,805 INFO L226 Difference]: Without dead ends: 66748 [2023-04-02 05:02:21,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:02:21,869 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1117 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:21,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 66 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:02:21,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66748 states. [2023-04-02 05:02:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66748 to 59216. [2023-04-02 05:02:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59216 states, 48589 states have (on average 1.5351622795282882) internal successors, (74592), 49879 states have internal predecessors, (74592), 4669 states have call successors, (4669), 4669 states have call predecessors, (4669), 5957 states have return successors, (12237), 4668 states have call predecessors, (12237), 4668 states have call successors, (12237) [2023-04-02 05:02:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59216 states to 59216 states and 91498 transitions. [2023-04-02 05:02:27,075 INFO L78 Accepts]: Start accepts. Automaton has 59216 states and 91498 transitions. Word has length 93 [2023-04-02 05:02:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 59216 states and 91498 transitions. [2023-04-02 05:02:27,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:02:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 59216 states and 91498 transitions. [2023-04-02 05:02:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 05:02:27,079 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:27,079 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] [2023-04-02 05:02:27,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:02:27,079 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:27,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash 106762768, now seen corresponding path program 1 times [2023-04-02 05:02:27,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:27,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021507949] [2023-04-02 05:02:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:02:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:02:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:02:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:27,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021507949] [2023-04-02 05:02:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021507949] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:27,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:27,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:02:27,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058999237] [2023-04-02 05:02:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:27,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:02:27,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:02:27,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:02:27,385 INFO L87 Difference]: Start difference. First operand 59216 states and 91498 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:33,312 INFO L93 Difference]: Finished difference Result 107340 states and 164900 transitions. [2023-04-02 05:02:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:02:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2023-04-02 05:02:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:33,553 INFO L225 Difference]: With dead ends: 107340 [2023-04-02 05:02:33,553 INFO L226 Difference]: Without dead ends: 58772 [2023-04-02 05:02:33,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:02:33,615 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1413 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:33,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 97 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:02:33,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58772 states. [2023-04-02 05:02:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58772 to 52607. [2023-04-02 05:02:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52607 states, 43202 states have (on average 1.5336095551131892) internal successors, (66255), 44352 states have internal predecessors, (66255), 4128 states have call successors, (4128), 4128 states have call predecessors, (4128), 5276 states have return successors, (10687), 4127 states have call predecessors, (10687), 4127 states have call successors, (10687) [2023-04-02 05:02:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52607 states to 52607 states and 81070 transitions. [2023-04-02 05:02:37,762 INFO L78 Accepts]: Start accepts. Automaton has 52607 states and 81070 transitions. Word has length 94 [2023-04-02 05:02:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:37,763 INFO L495 AbstractCegarLoop]: Abstraction has 52607 states and 81070 transitions. [2023-04-02 05:02:37,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 52607 states and 81070 transitions. [2023-04-02 05:02:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 05:02:37,766 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:37,766 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] [2023-04-02 05:02:37,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:02:37,766 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:37,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1492966162, now seen corresponding path program 1 times [2023-04-02 05:02:37,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:37,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722193014] [2023-04-02 05:02:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:02:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:02:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:02:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:38,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722193014] [2023-04-02 05:02:38,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722193014] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:38,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:38,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:02:38,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420580575] [2023-04-02 05:02:38,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:38,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:02:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:38,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:02:38,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:02:38,068 INFO L87 Difference]: Start difference. First operand 52607 states and 81070 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:44,875 INFO L93 Difference]: Finished difference Result 105884 states and 162318 transitions. [2023-04-02 05:02:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:02:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2023-04-02 05:02:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:45,138 INFO L225 Difference]: With dead ends: 105884 [2023-04-02 05:02:45,140 INFO L226 Difference]: Without dead ends: 79830 [2023-04-02 05:02:45,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:02:45,191 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1272 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:45,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 108 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:02:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79830 states. [2023-04-02 05:02:50,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79830 to 71223. [2023-04-02 05:02:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71223 states, 58547 states have (on average 1.5352281073325704) internal successors, (89883), 60112 states have internal predecessors, (89883), 5556 states have call successors, (5556), 5556 states have call predecessors, (5556), 7119 states have return successors, (14363), 5555 states have call predecessors, (14363), 5555 states have call successors, (14363) [2023-04-02 05:02:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71223 states to 71223 states and 109802 transitions. [2023-04-02 05:02:50,722 INFO L78 Accepts]: Start accepts. Automaton has 71223 states and 109802 transitions. Word has length 94 [2023-04-02 05:02:50,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:50,724 INFO L495 AbstractCegarLoop]: Abstraction has 71223 states and 109802 transitions. [2023-04-02 05:02:50,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 71223 states and 109802 transitions. [2023-04-02 05:02:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:02:50,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:50,742 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 05:02:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:02:50,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:50,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1102905329, now seen corresponding path program 1 times [2023-04-02 05:02:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:50,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141932088] [2023-04-02 05:02:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:02:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:02:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 05:02:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:02:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:02:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:02:51,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:51,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141932088] [2023-04-02 05:02:51,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141932088] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:51,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:51,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:02:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024223957] [2023-04-02 05:02:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:02:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:02:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:02:51,128 INFO L87 Difference]: Start difference. First operand 71223 states and 109802 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:02:58,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:58,959 INFO L93 Difference]: Finished difference Result 179421 states and 273648 transitions. [2023-04-02 05:02:58,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:02:58,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-04-02 05:02:58,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:59,337 INFO L225 Difference]: With dead ends: 179421 [2023-04-02 05:02:59,338 INFO L226 Difference]: Without dead ends: 108267 [2023-04-02 05:02:59,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:02:59,428 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 526 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:59,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 67 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:02:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108267 states. [2023-04-02 05:03:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108267 to 89911. [2023-04-02 05:03:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89911 states, 74780 states have (on average 1.5494784701791924) internal successors, (115870), 77012 states have internal predecessors, (115870), 6450 states have call successors, (6450), 6450 states have call predecessors, (6450), 8680 states have return successors, (18544), 6449 states have call predecessors, (18544), 6449 states have call successors, (18544) [2023-04-02 05:03:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89911 states to 89911 states and 140864 transitions. [2023-04-02 05:03:07,500 INFO L78 Accepts]: Start accepts. Automaton has 89911 states and 140864 transitions. Word has length 95 [2023-04-02 05:03:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:07,500 INFO L495 AbstractCegarLoop]: Abstraction has 89911 states and 140864 transitions. [2023-04-02 05:03:07,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:03:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 89911 states and 140864 transitions. [2023-04-02 05:03:07,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:03:07,522 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:07,523 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 05:03:07,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:03:07,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:07,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash 729819931, now seen corresponding path program 1 times [2023-04-02 05:03:07,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:07,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221181018] [2023-04-02 05:03:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:07,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:03:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:03:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 05:03:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:03:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:03:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:03:07,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221181018] [2023-04-02 05:03:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221181018] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:03:07,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:03:07,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:03:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181654974] [2023-04-02 05:03:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:03:07,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:03:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:07,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:03:07,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:03:07,863 INFO L87 Difference]: Start difference. First operand 89911 states and 140864 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:03:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:03:22,429 INFO L93 Difference]: Finished difference Result 290766 states and 464239 transitions. [2023-04-02 05:03:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:03:22,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-04-02 05:03:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:03:23,457 INFO L225 Difference]: With dead ends: 290766 [2023-04-02 05:03:23,457 INFO L226 Difference]: Without dead ends: 200924 [2023-04-02 05:03:23,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:03:23,604 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1184 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:03:23,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 100 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:03:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200924 states. [2023-04-02 05:03:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200924 to 185035. [2023-04-02 05:03:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185035 states, 153384 states have (on average 1.5051504720179418) internal successors, (230866), 157968 states have internal predecessors, (230866), 13534 states have call successors, (13534), 13534 states have call predecessors, (13534), 18116 states have return successors, (39351), 13535 states have call predecessors, (39351), 13533 states have call successors, (39351) [2023-04-02 05:03:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185035 states to 185035 states and 283751 transitions. [2023-04-02 05:03:38,343 INFO L78 Accepts]: Start accepts. Automaton has 185035 states and 283751 transitions. Word has length 95 [2023-04-02 05:03:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:38,343 INFO L495 AbstractCegarLoop]: Abstraction has 185035 states and 283751 transitions. [2023-04-02 05:03:38,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:03:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 185035 states and 283751 transitions. [2023-04-02 05:03:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:03:38,348 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:38,348 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 05:03:38,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:03:38,348 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:38,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:38,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1514163367, now seen corresponding path program 1 times [2023-04-02 05:03:38,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:38,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159741632] [2023-04-02 05:03:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:38,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:03:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:03:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 05:03:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:03:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:03:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:03:38,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:38,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159741632] [2023-04-02 05:03:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159741632] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:03:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:03:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:03:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265361094] [2023-04-02 05:03:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:03:38,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:03:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:38,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:03:38,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:03:38,682 INFO L87 Difference]: Start difference. First operand 185035 states and 283751 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)