/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 07:02:56,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 07:02:56,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 07:02:56,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 07:02:56,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 07:02:56,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 07:02:56,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 07:02:56,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 07:02:56,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 07:02:56,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 07:02:56,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 07:02:56,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 07:02:56,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 07:02:56,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 07:02:56,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 07:02:56,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 07:02:56,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 07:02:56,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 07:02:56,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 07:02:56,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 07:02:56,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 07:02:56,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 07:02:56,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 07:02:56,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 07:02:56,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 07:02:56,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 07:02:56,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 07:02:56,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 07:02:56,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 07:02:56,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 07:02:56,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 07:02:56,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 07:02:56,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 07:02:56,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 07:02:56,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 07:02:56,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 07:02:56,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 07:02:56,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 07:02:56,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 07:02:56,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 07:02:56,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 07:02:56,475 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 07:02:56,493 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 07:02:56,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 07:02:56,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 07:02:56,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 07:02:56,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 07:02:56,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 07:02:56,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 07:02:56,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 07:02:56,502 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 07:02:56,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 07:02:56,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 07:02:56,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 07:02:56,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 07:02:56,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 07:02:56,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 07:02:56,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 07:02:56,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 07:02:56,504 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 07:02:56,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 07:02:56,504 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 07:02:56,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 07:02:56,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 07:02:56,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 07:02:56,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 07:02:56,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:02:56,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 07:02:56,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 07:02:56,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 07:02:56,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 07:02:56,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 07:02:56,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 07:02:56,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 07:02:56,507 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 07:02:56,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 07:02:56,508 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 07:02:56,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 07:02:56,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 07:02:56,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 07:02:56,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 07:02:56,769 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 07:02:56,777 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 07:02:56,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-04-02 07:02:58,057 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 07:02:58,646 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 07:02:58,647 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-04-02 07:02:58,704 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8d0f366/506debf2ba19485fbdf790cc8b134123/FLAG16afe8ed7 [2023-04-02 07:02:59,140 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8d0f366/506debf2ba19485fbdf790cc8b134123 [2023-04-02 07:02:59,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 07:02:59,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 07:02:59,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 07:02:59,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 07:02:59,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 07:02:59,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:02:59" (1/1) ... [2023-04-02 07:02:59,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbccb1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:02:59, skipping insertion in model container [2023-04-02 07:02:59,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:02:59" (1/1) ... [2023-04-02 07:02:59,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 07:02:59,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 07:03:00,284 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40670,40683] [2023-04-02 07:03:02,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:03:02,629 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 07:03:02,886 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40670,40683] [2023-04-02 07:03:04,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:03:04,790 INFO L208 MainTranslator]: Completed translation [2023-04-02 07:03:04,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04 WrapperNode [2023-04-02 07:03:04,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 07:03:04,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 07:03:04,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 07:03:04,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 07:03:04,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:04,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:04,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:04,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 07:03:05,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 07:03:05,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 07:03:05,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 07:03:05,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (1/1) ... [2023-04-02 07:03:05,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:03:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:03:05,395 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 07:03:05,406 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 07:03:05,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 07:03:05,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 07:03:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 07:03:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 07:03:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 07:03:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 07:03:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 07:03:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 07:03:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 07:03:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 07:03:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 07:03:05,857 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 07:03:05,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 07:03:15,487 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 07:03:15,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 07:03:15,532 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 07:03:15,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:03:15 BoogieIcfgContainer [2023-04-02 07:03:15,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 07:03:15,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 07:03:15,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 07:03:15,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 07:03:15,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 07:02:59" (1/3) ... [2023-04-02 07:03:15,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3e9d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:03:15, skipping insertion in model container [2023-04-02 07:03:15,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:03:04" (2/3) ... [2023-04-02 07:03:15,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3e9d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:03:15, skipping insertion in model container [2023-04-02 07:03:15,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:03:15" (3/3) ... [2023-04-02 07:03:15,553 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-04-02 07:03:15,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 07:03:15,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 07:03:15,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 07:03:15,744 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;@466f17a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 07:03:15,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 07:03:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 6862 states, 6848 states have (on average 1.75) internal successors, (11984), 6857 states have internal predecessors, (11984), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 07:03:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:03:15,837 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:03:15,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:15,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:03:15,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:03:15,846 INFO L85 PathProgramCache]: Analyzing trace with hash 348060670, now seen corresponding path program 1 times [2023-04-02 07:03:15,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:03:15,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105412908] [2023-04-02 07:03:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:03:15,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:03:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:03:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:03:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:03:18,023 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 07:03:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:03:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105412908] [2023-04-02 07:03:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105412908] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:03:18,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:03:18,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:03:18,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317128442] [2023-04-02 07:03:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:03:18,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:03:18,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:03:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:03:18,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:03:18,088 INFO L87 Difference]: Start difference. First operand has 6862 states, 6848 states have (on average 1.75) internal successors, (11984), 6857 states have internal predecessors, (11984), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:03:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:03:52,420 INFO L93 Difference]: Finished difference Result 13640 states and 23592 transitions. [2023-04-02 07:03:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:03:52,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:03:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:03:52,484 INFO L225 Difference]: With dead ends: 13640 [2023-04-02 07:03:52,484 INFO L226 Difference]: Without dead ends: 8176 [2023-04-02 07:03:52,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:03:52,505 INFO L413 NwaCegarLoop]: 12290 mSDtfsCounter, 8077 mSDsluCounter, 6004 mSDsCounter, 0 mSdLazyCounter, 12348 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8077 SdHoareTripleChecker+Valid, 18294 SdHoareTripleChecker+Invalid, 12406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 12348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-04-02 07:03:52,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8077 Valid, 18294 Invalid, 12406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 12348 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2023-04-02 07:03:52,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8176 states. [2023-04-02 07:03:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8176 to 8174. [2023-04-02 07:03:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8174 states, 8170 states have (on average 1.670501835985312) internal successors, (13648), 8170 states have internal predecessors, (13648), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:03:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8174 states to 8174 states and 13651 transitions. [2023-04-02 07:03:52,870 INFO L78 Accepts]: Start accepts. Automaton has 8174 states and 13651 transitions. Word has length 392 [2023-04-02 07:03:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:03:52,874 INFO L495 AbstractCegarLoop]: Abstraction has 8174 states and 13651 transitions. [2023-04-02 07:03:52,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:03:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8174 states and 13651 transitions. [2023-04-02 07:03:52,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:03:52,914 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:03:52,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:52,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 07:03:52,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:03:52,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:03:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash 759590260, now seen corresponding path program 1 times [2023-04-02 07:03:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:03:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617089530] [2023-04-02 07:03:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:03:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:03:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:03:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:03:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:03:54,316 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 07:03:54,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:03:54,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617089530] [2023-04-02 07:03:54,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617089530] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:03:54,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:03:54,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:03:54,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649310158] [2023-04-02 07:03:54,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:03:54,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:03:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:03:54,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:03:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:03:54,322 INFO L87 Difference]: Start difference. First operand 8174 states and 13651 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:29,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:04:29,185 INFO L93 Difference]: Finished difference Result 17765 states and 29769 transitions. [2023-04-02 07:04:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:04:29,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:04:29,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:04:29,231 INFO L225 Difference]: With dead ends: 17765 [2023-04-02 07:04:29,231 INFO L226 Difference]: Without dead ends: 10831 [2023-04-02 07:04:29,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:04:29,245 INFO L413 NwaCegarLoop]: 13240 mSDtfsCounter, 6967 mSDsluCounter, 5965 mSDsCounter, 0 mSdLazyCounter, 13536 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6967 SdHoareTripleChecker+Valid, 19205 SdHoareTripleChecker+Invalid, 13750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 13536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2023-04-02 07:04:29,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6967 Valid, 19205 Invalid, 13750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [214 Valid, 13536 Invalid, 0 Unknown, 0 Unchecked, 33.2s Time] [2023-04-02 07:04:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10831 states. [2023-04-02 07:04:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10831 to 10829. [2023-04-02 07:04:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10829 states, 10825 states have (on average 1.666974595842956) internal successors, (18045), 10825 states have internal predecessors, (18045), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10829 states to 10829 states and 18048 transitions. [2023-04-02 07:04:29,725 INFO L78 Accepts]: Start accepts. Automaton has 10829 states and 18048 transitions. Word has length 392 [2023-04-02 07:04:29,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:04:29,727 INFO L495 AbstractCegarLoop]: Abstraction has 10829 states and 18048 transitions. [2023-04-02 07:04:29,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 10829 states and 18048 transitions. [2023-04-02 07:04:29,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:04:29,757 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:04:29,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:29,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 07:04:29,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:04:29,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:04:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1032293302, now seen corresponding path program 1 times [2023-04-02 07:04:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:04:29,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664647458] [2023-04-02 07:04:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:04:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:04:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:04:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:04:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:04:31,140 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 07:04:31,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:04:31,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664647458] [2023-04-02 07:04:31,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664647458] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:04:31,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:04:31,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:04:31,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488286051] [2023-04-02 07:04:31,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:04:31,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:04:31,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:04:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:04:31,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:04:31,144 INFO L87 Difference]: Start difference. First operand 10829 states and 18048 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:57,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:04:57,627 INFO L93 Difference]: Finished difference Result 20228 states and 33666 transitions. [2023-04-02 07:04:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:04:57,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:04:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:04:57,684 INFO L225 Difference]: With dead ends: 20228 [2023-04-02 07:04:57,684 INFO L226 Difference]: Without dead ends: 18370 [2023-04-02 07:04:57,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:04:57,695 INFO L413 NwaCegarLoop]: 9312 mSDtfsCounter, 7433 mSDsluCounter, 7269 mSDsCounter, 0 mSdLazyCounter, 11391 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7433 SdHoareTripleChecker+Valid, 16581 SdHoareTripleChecker+Invalid, 11448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 11391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2023-04-02 07:04:57,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7433 Valid, 16581 Invalid, 11448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 11391 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2023-04-02 07:04:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18370 states. [2023-04-02 07:04:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18370 to 18368. [2023-04-02 07:04:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18368 states, 18364 states have (on average 1.6600413853191025) internal successors, (30485), 18364 states have internal predecessors, (30485), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18368 states to 18368 states and 30488 transitions. [2023-04-02 07:04:58,540 INFO L78 Accepts]: Start accepts. Automaton has 18368 states and 30488 transitions. Word has length 392 [2023-04-02 07:04:58,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:04:58,541 INFO L495 AbstractCegarLoop]: Abstraction has 18368 states and 30488 transitions. [2023-04-02 07:04:58,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:04:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 18368 states and 30488 transitions. [2023-04-02 07:04:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:04:58,590 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:04:58,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 07:04:58,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:04:58,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:04:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -763285110, now seen corresponding path program 1 times [2023-04-02 07:04:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:04:58,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108587850] [2023-04-02 07:04:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:04:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:04:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:04:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:04:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:05:00,010 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 07:05:00,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:05:00,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108587850] [2023-04-02 07:05:00,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108587850] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:05:00,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:05:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:05:00,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744224746] [2023-04-02 07:05:00,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:05:00,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:05:00,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:05:00,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:05:00,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:05:00,014 INFO L87 Difference]: Start difference. First operand 18368 states and 30488 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:05:27,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:05:27,586 INFO L93 Difference]: Finished difference Result 28418 states and 47076 transitions. [2023-04-02 07:05:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:05:27,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:05:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:05:27,658 INFO L225 Difference]: With dead ends: 28418 [2023-04-02 07:05:27,659 INFO L226 Difference]: Without dead ends: 26928 [2023-04-02 07:05:27,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:05:27,671 INFO L413 NwaCegarLoop]: 10207 mSDtfsCounter, 7273 mSDsluCounter, 8317 mSDsCounter, 0 mSdLazyCounter, 10799 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7273 SdHoareTripleChecker+Valid, 18524 SdHoareTripleChecker+Invalid, 10833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 10799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:05:27,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7273 Valid, 18524 Invalid, 10833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 10799 Invalid, 0 Unknown, 0 Unchecked, 25.7s Time] [2023-04-02 07:05:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26928 states. [2023-04-02 07:05:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26928 to 26926. [2023-04-02 07:05:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26926 states, 26922 states have (on average 1.6563033949929427) internal successors, (44591), 26922 states have internal predecessors, (44591), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:05:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26926 states to 26926 states and 44594 transitions. [2023-04-02 07:05:28,701 INFO L78 Accepts]: Start accepts. Automaton has 26926 states and 44594 transitions. Word has length 392 [2023-04-02 07:05:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:05:28,702 INFO L495 AbstractCegarLoop]: Abstraction has 26926 states and 44594 transitions. [2023-04-02 07:05:28,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:05:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 26926 states and 44594 transitions. [2023-04-02 07:05:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:05:28,770 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:05:28,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:28,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 07:05:28,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:05:28,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:05:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1248061459, now seen corresponding path program 1 times [2023-04-02 07:05:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:05:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566404754] [2023-04-02 07:05:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:05:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:05:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:05:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:05:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:05:30,441 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 07:05:30,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:05:30,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566404754] [2023-04-02 07:05:30,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566404754] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:05:30,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:05:30,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:05:30,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947512369] [2023-04-02 07:05:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:05:30,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:05:30,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:05:30,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:05:30,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:05:30,444 INFO L87 Difference]: Start difference. First operand 26926 states and 44594 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:06:03,765 INFO L93 Difference]: Finished difference Result 63804 states and 105702 transitions. [2023-04-02 07:06:03,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 07:06:03,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:06:03,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:06:03,853 INFO L225 Difference]: With dead ends: 63804 [2023-04-02 07:06:03,853 INFO L226 Difference]: Without dead ends: 38412 [2023-04-02 07:06:03,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:06:03,900 INFO L413 NwaCegarLoop]: 13069 mSDtfsCounter, 3990 mSDsluCounter, 9549 mSDsCounter, 0 mSdLazyCounter, 13116 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 22618 SdHoareTripleChecker+Invalid, 13129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:06:03,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3990 Valid, 22618 Invalid, 13129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 13116 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2023-04-02 07:06:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38412 states. [2023-04-02 07:06:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38412 to 37770. [2023-04-02 07:06:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37770 states, 37766 states have (on average 1.6502409574749775) internal successors, (62323), 37766 states have internal predecessors, (62323), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37770 states to 37770 states and 62326 transitions. [2023-04-02 07:06:05,449 INFO L78 Accepts]: Start accepts. Automaton has 37770 states and 62326 transitions. Word has length 392 [2023-04-02 07:06:05,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:06:05,450 INFO L495 AbstractCegarLoop]: Abstraction has 37770 states and 62326 transitions. [2023-04-02 07:06:05,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:05,450 INFO L276 IsEmpty]: Start isEmpty. Operand 37770 states and 62326 transitions. [2023-04-02 07:06:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-02 07:06:05,527 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:06:05,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:05,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 07:06:05,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:06:05,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:06:05,528 INFO L85 PathProgramCache]: Analyzing trace with hash -157601840, now seen corresponding path program 1 times [2023-04-02 07:06:05,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:06:05,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857505033] [2023-04-02 07:06:05,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:06:05,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:06:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:06:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:06:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:06:07,268 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 07:06:07,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:06:07,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857505033] [2023-04-02 07:06:07,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857505033] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:06:07,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:06:07,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:06:07,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266534935] [2023-04-02 07:06:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:06:07,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:06:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:06:07,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:06:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:06:07,271 INFO L87 Difference]: Start difference. First operand 37770 states and 62326 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:26,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:06:26,053 INFO L93 Difference]: Finished difference Result 42462 states and 70432 transitions. [2023-04-02 07:06:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 07:06:26,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2023-04-02 07:06:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:06:26,080 INFO L225 Difference]: With dead ends: 42462 [2023-04-02 07:06:26,080 INFO L226 Difference]: Without dead ends: 14020 [2023-04-02 07:06:26,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:06:26,117 INFO L413 NwaCegarLoop]: 7361 mSDtfsCounter, 4739 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 7577 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 9916 SdHoareTripleChecker+Invalid, 7653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 7577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-04-02 07:06:26,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 9916 Invalid, 7653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 7577 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2023-04-02 07:06:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14020 states. [2023-04-02 07:06:26,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14020 to 14018. [2023-04-02 07:06:26,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14018 states, 14014 states have (on average 1.6605537319823034) internal successors, (23271), 14014 states have internal predecessors, (23271), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14018 states to 14018 states and 23274 transitions. [2023-04-02 07:06:26,623 INFO L78 Accepts]: Start accepts. Automaton has 14018 states and 23274 transitions. Word has length 392 [2023-04-02 07:06:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:06:26,623 INFO L495 AbstractCegarLoop]: Abstraction has 14018 states and 23274 transitions. [2023-04-02 07:06:26,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 07:06:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14018 states and 23274 transitions. [2023-04-02 07:06:26,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2023-04-02 07:06:26,641 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:06:26,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:26,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 07:06:26,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:06:26,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:06:26,642 INFO L85 PathProgramCache]: Analyzing trace with hash -25214958, now seen corresponding path program 1 times [2023-04-02 07:06:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:06:26,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42370564] [2023-04-02 07:06:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:06:26,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:06:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:06:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:06:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:06:28,080 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 07:06:28,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:06:28,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42370564] [2023-04-02 07:06:28,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42370564] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:06:28,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:06:28,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 07:06:28,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894068923] [2023-04-02 07:06:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:06:28,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 07:06:28,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:06:28,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 07:06:28,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-04-02 07:06:28,084 INFO L87 Difference]: Start difference. First operand 14018 states and 23274 transitions. Second operand has 8 states, 8 states have (on average 49.125) internal successors, (393), 7 states have internal predecessors, (393), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)