/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:11:41,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:11:41,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:11:41,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:11:41,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:11:41,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:11:41,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:11:41,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:11:41,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:11:41,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:11:41,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:11:41,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:11:41,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:11:41,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:11:41,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:11:41,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:11:41,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:11:41,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:11:41,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:11:41,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:11:41,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:11:41,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:11:41,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:11:41,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:11:41,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:11:41,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:11:41,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:11:41,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:11:41,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:11:41,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:11:41,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:11:41,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:11:41,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:11:41,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:11:41,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:11:41,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:11:41,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:11:41,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:11:41,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:11:41,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:11:41,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:11:41,534 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 05:11:41,562 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:11:41,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:11:41,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:11:41,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:11:41,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:11:41,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:11:41,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:11:41,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:11:41,564 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:11:41,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:11:41,565 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:11:41,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:11:41,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:11:41,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:11:41,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:11:41,567 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:11:41,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:11:41,567 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:11:41,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:11:41,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:11:41,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:11:41,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:11:41,781 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:11:41,781 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:11:41,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:11:42,887 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:11:43,047 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:11:43,048 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:11:43,056 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11b6b4475/a5ed51af26a8477e9c76ad845794027c/FLAG4667c37d9 [2023-04-02 05:11:43,065 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11b6b4475/a5ed51af26a8477e9c76ad845794027c [2023-04-02 05:11:43,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:11:43,068 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:11:43,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:11:43,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:11:43,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:11:43,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4b90f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43, skipping insertion in model container [2023-04-02 05:11:43,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:11:43,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:11:43,265 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c[12820,12833] [2023-04-02 05:11:43,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:11:43,282 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:11:43,313 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c[12820,12833] [2023-04-02 05:11:43,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:11:43,323 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:11:43,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43 WrapperNode [2023-04-02 05:11:43,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:11:43,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:11:43,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:11:43,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:11:43,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:11:43,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:11:43,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:11:43,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:11:43,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (1/1) ... [2023-04-02 05:11:43,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:11:43,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:43,392 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 05:11:43,406 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 05:11:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:11:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:11:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:11:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:11:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:11:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:11:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:11:43,486 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:11:43,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:11:43,947 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:11:43,952 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:11:43,952 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:11:43,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:11:43 BoogieIcfgContainer [2023-04-02 05:11:43,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:11:43,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:11:43,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:11:43,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:11:43,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:11:43" (1/3) ... [2023-04-02 05:11:43,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5907a196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:11:43, skipping insertion in model container [2023-04-02 05:11:43,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:43" (2/3) ... [2023-04-02 05:11:43,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5907a196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:11:43, skipping insertion in model container [2023-04-02 05:11:43,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:11:43" (3/3) ... [2023-04-02 05:11:43,958 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:11:43,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:11:43,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:11:44,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:11:44,050 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;@71eb212d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:11:44,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:11:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 118 states have internal predecessors, (192), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:11:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:11:44,059 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:44,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:44,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:44,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash 522266175, now seen corresponding path program 1 times [2023-04-02 05:11:44,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:44,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418749163] [2023-04-02 05:11:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:11:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:11:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:11:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:11:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:11:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:11:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:11:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:44,752 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 05:11:44,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:44,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418749163] [2023-04-02 05:11:44,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418749163] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:44,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:44,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:11:44,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065524526] [2023-04-02 05:11:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:44,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:11:44,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:11:44,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:11:44,792 INFO L87 Difference]: Start difference. First operand has 140 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 118 states have internal predecessors, (192), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:46,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:46,214 INFO L93 Difference]: Finished difference Result 239 states and 358 transitions. [2023-04-02 05:11:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:11:46,217 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-04-02 05:11:46,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:46,225 INFO L225 Difference]: With dead ends: 239 [2023-04-02 05:11:46,225 INFO L226 Difference]: Without dead ends: 141 [2023-04-02 05:11:46,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:11:46,233 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 511 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:46,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 144 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:11:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-04-02 05:11:46,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 135. [2023-04-02 05:11:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 114 states have internal predecessors, (153), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:11:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2023-04-02 05:11:46,284 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 67 [2023-04-02 05:11:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:46,284 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2023-04-02 05:11:46,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2023-04-02 05:11:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:11:46,287 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:46,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:11:46,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:46,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1733385975, now seen corresponding path program 1 times [2023-04-02 05:11:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233431950] [2023-04-02 05:11:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:47,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:47,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:47,065 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 05:11:47,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233431950] [2023-04-02 05:11:47,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233431950] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:11:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528704968] [2023-04-02 05:11:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:11:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:11:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:11:47,072 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:53,586 INFO L93 Difference]: Finished difference Result 1174 states and 1682 transitions. [2023-04-02 05:11:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-04-02 05:11:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2023-04-02 05:11:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:53,597 INFO L225 Difference]: With dead ends: 1174 [2023-04-02 05:11:53,598 INFO L226 Difference]: Without dead ends: 1089 [2023-04-02 05:11:53,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3942 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2140, Invalid=9416, Unknown=0, NotChecked=0, Total=11556 [2023-04-02 05:11:53,605 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4985 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:53,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 179 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 05:11:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-04-02 05:11:53,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1003. [2023-04-02 05:11:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 825 states have (on average 1.5127272727272727) internal successors, (1248), 842 states have internal predecessors, (1248), 81 states have call successors, (81), 81 states have call predecessors, (81), 96 states have return successors, (140), 80 states have call predecessors, (140), 80 states have call successors, (140) [2023-04-02 05:11:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1469 transitions. [2023-04-02 05:11:53,750 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1469 transitions. Word has length 98 [2023-04-02 05:11:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:53,753 INFO L495 AbstractCegarLoop]: Abstraction has 1003 states and 1469 transitions. [2023-04-02 05:11:53,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1469 transitions. [2023-04-02 05:11:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 05:11:53,763 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:53,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:53,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:11:53,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:53,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1481829726, now seen corresponding path program 1 times [2023-04-02 05:11:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:53,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882371109] [2023-04-02 05:11:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:53,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:54,401 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 05:11:54,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:54,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882371109] [2023-04-02 05:11:54,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882371109] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:54,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:54,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 05:11:54,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435200460] [2023-04-02 05:11:54,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:54,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 05:11:54,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:54,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 05:11:54,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-04-02 05:11:54,403 INFO L87 Difference]: Start difference. First operand 1003 states and 1469 transitions. Second operand has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:56,266 INFO L93 Difference]: Finished difference Result 1190 states and 1738 transitions. [2023-04-02 05:11:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:11:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2023-04-02 05:11:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:56,273 INFO L225 Difference]: With dead ends: 1190 [2023-04-02 05:11:56,273 INFO L226 Difference]: Without dead ends: 1188 [2023-04-02 05:11:56,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=703, Unknown=0, NotChecked=0, Total=870 [2023-04-02 05:11:56,275 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 536 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:56,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 301 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:11:56,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-04-02 05:11:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1057. [2023-04-02 05:11:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 861 states have (on average 1.4912891986062717) internal successors, (1284), 884 states have internal predecessors, (1284), 87 states have call successors, (87), 87 states have call predecessors, (87), 108 states have return successors, (152), 86 states have call predecessors, (152), 86 states have call successors, (152) [2023-04-02 05:11:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1523 transitions. [2023-04-02 05:11:56,424 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1523 transitions. Word has length 99 [2023-04-02 05:11:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:56,426 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1523 transitions. [2023-04-02 05:11:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1523 transitions. [2023-04-02 05:11:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 05:11:56,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:56,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:56,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:11:56,428 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:56,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash -789283281, now seen corresponding path program 1 times [2023-04-02 05:11:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:56,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739528813] [2023-04-02 05:11:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:56,786 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 05:11:56,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:56,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739528813] [2023-04-02 05:11:56,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739528813] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:56,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:56,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:11:56,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028341225] [2023-04-02 05:11:56,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:56,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:11:56,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:11:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:11:56,789 INFO L87 Difference]: Start difference. First operand 1057 states and 1523 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:58,446 INFO L93 Difference]: Finished difference Result 3850 states and 5598 transitions. [2023-04-02 05:11:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 05:11:58,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2023-04-02 05:11:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:58,456 INFO L225 Difference]: With dead ends: 3850 [2023-04-02 05:11:58,456 INFO L226 Difference]: Without dead ends: 2843 [2023-04-02 05:11:58,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:11:58,466 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1287 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:58,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 91 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:11:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2023-04-02 05:11:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2642. [2023-04-02 05:11:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2134 states have (on average 1.4971883786316775) internal successors, (3195), 2191 states have internal predecessors, (3195), 226 states have call successors, (226), 226 states have call predecessors, (226), 281 states have return successors, (441), 225 states have call predecessors, (441), 225 states have call successors, (441) [2023-04-02 05:11:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3862 transitions. [2023-04-02 05:11:58,758 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3862 transitions. Word has length 100 [2023-04-02 05:11:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:58,759 INFO L495 AbstractCegarLoop]: Abstraction has 2642 states and 3862 transitions. [2023-04-02 05:11:58,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3862 transitions. [2023-04-02 05:11:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:11:58,761 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:58,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:58,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:11:58,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:58,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash 723028559, now seen corresponding path program 1 times [2023-04-02 05:11:58,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:58,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852068334] [2023-04-02 05:11:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:11:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:11:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:11:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:59,141 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 05:11:59,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:59,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852068334] [2023-04-02 05:11:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852068334] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:59,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:59,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:11:59,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749091939] [2023-04-02 05:11:59,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:59,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:11:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:11:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:11:59,143 INFO L87 Difference]: Start difference. First operand 2642 states and 3862 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:01,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:01,499 INFO L93 Difference]: Finished difference Result 6647 states and 9616 transitions. [2023-04-02 05:12:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:12:01,500 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:12:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:01,515 INFO L225 Difference]: With dead ends: 6647 [2023-04-02 05:12:01,515 INFO L226 Difference]: Without dead ends: 4055 [2023-04-02 05:12:01,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:12:01,522 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1886 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:01,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 66 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:12:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2023-04-02 05:12:01,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 2763. [2023-04-02 05:12:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2228 states have (on average 1.4955116696588868) internal successors, (3332), 2294 states have internal predecessors, (3332), 235 states have call successors, (235), 235 states have call predecessors, (235), 299 states have return successors, (464), 233 states have call predecessors, (464), 234 states have call successors, (464) [2023-04-02 05:12:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4031 transitions. [2023-04-02 05:12:01,895 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4031 transitions. Word has length 101 [2023-04-02 05:12:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:01,896 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 4031 transitions. [2023-04-02 05:12:01,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4031 transitions. [2023-04-02 05:12:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:12:01,897 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:01,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:01,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:12:01,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:01,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash -358014430, now seen corresponding path program 1 times [2023-04-02 05:12:01,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:01,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828592047] [2023-04-02 05:12:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:12:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:02,332 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 05:12:02,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:02,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828592047] [2023-04-02 05:12:02,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828592047] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:02,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:02,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:12:02,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755337399] [2023-04-02 05:12:02,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:02,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:12:02,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:02,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:12:02,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:12:02,334 INFO L87 Difference]: Start difference. First operand 2763 states and 4031 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:04,762 INFO L93 Difference]: Finished difference Result 5944 states and 8514 transitions. [2023-04-02 05:12:04,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:12:04,763 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:12:04,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:04,773 INFO L225 Difference]: With dead ends: 5944 [2023-04-02 05:12:04,773 INFO L226 Difference]: Without dead ends: 3307 [2023-04-02 05:12:04,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:12:04,779 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1512 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:04,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 63 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:12:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2023-04-02 05:12:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 2921. [2023-04-02 05:12:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2358 states have (on average 1.4961832061068703) internal successors, (3528), 2428 states have internal predecessors, (3528), 247 states have call successors, (247), 247 states have call predecessors, (247), 315 states have return successors, (482), 245 states have call predecessors, (482), 246 states have call successors, (482) [2023-04-02 05:12:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4257 transitions. [2023-04-02 05:12:05,081 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4257 transitions. Word has length 101 [2023-04-02 05:12:05,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:05,081 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4257 transitions. [2023-04-02 05:12:05,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4257 transitions. [2023-04-02 05:12:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:12:05,082 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:05,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:05,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:12:05,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:05,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash -568174806, now seen corresponding path program 1 times [2023-04-02 05:12:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:05,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374120900] [2023-04-02 05:12:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:05,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:12:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:12:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:05,429 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 05:12:05,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374120900] [2023-04-02 05:12:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374120900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:05,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:05,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:12:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139311375] [2023-04-02 05:12:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:05,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:12:05,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:12:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:12:05,431 INFO L87 Difference]: Start difference. First operand 2921 states and 4257 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:08,185 INFO L93 Difference]: Finished difference Result 6467 states and 9277 transitions. [2023-04-02 05:12:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:12:08,185 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:12:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:08,201 INFO L225 Difference]: With dead ends: 6467 [2023-04-02 05:12:08,202 INFO L226 Difference]: Without dead ends: 3777 [2023-04-02 05:12:08,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:12:08,209 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1976 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:08,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1976 Valid, 62 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:12:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2023-04-02 05:12:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3088. [2023-04-02 05:12:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2492 states have (on average 1.4967897271268058) internal successors, (3730), 2575 states have internal predecessors, (3730), 257 states have call successors, (257), 257 states have call predecessors, (257), 338 states have return successors, (510), 255 states have call predecessors, (510), 256 states have call successors, (510) [2023-04-02 05:12:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4497 transitions. [2023-04-02 05:12:08,603 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4497 transitions. Word has length 101 [2023-04-02 05:12:08,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:08,603 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 4497 transitions. [2023-04-02 05:12:08,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4497 transitions. [2023-04-02 05:12:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:12:08,608 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:08,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:08,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:12:08,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:08,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1315341204, now seen corresponding path program 1 times [2023-04-02 05:12:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384586318] [2023-04-02 05:12:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:12:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:12:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:12:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:12:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:08,950 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 05:12:08,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384586318] [2023-04-02 05:12:08,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384586318] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:08,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:08,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:12:08,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264823599] [2023-04-02 05:12:08,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:08,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:12:08,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:08,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:12:08,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:12:08,952 INFO L87 Difference]: Start difference. First operand 3088 states and 4497 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:11,604 INFO L93 Difference]: Finished difference Result 8007 states and 11571 transitions. [2023-04-02 05:12:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:12:11,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:12:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:11,625 INFO L225 Difference]: With dead ends: 8007 [2023-04-02 05:12:11,626 INFO L226 Difference]: Without dead ends: 5020 [2023-04-02 05:12:11,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:12:11,634 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1574 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:11,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 66 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:12:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2023-04-02 05:12:12,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 3356. [2023-04-02 05:12:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 2712 states have (on average 1.5066371681415929) internal successors, (4086), 2807 states have internal predecessors, (4086), 275 states have call successors, (275), 275 states have call predecessors, (275), 368 states have return successors, (558), 273 states have call predecessors, (558), 274 states have call successors, (558) [2023-04-02 05:12:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 4919 transitions. [2023-04-02 05:12:12,069 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 4919 transitions. Word has length 101 [2023-04-02 05:12:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:12,070 INFO L495 AbstractCegarLoop]: Abstraction has 3356 states and 4919 transitions. [2023-04-02 05:12:12,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:12:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 4919 transitions. [2023-04-02 05:12:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:12:12,071 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:12,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:12,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:12:12,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:12,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash -443147479, now seen corresponding path program 1 times [2023-04-02 05:12:12,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:12,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183830814] [2023-04-02 05:12:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:12:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:12:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:12:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:12:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:12:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:12,409 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 05:12:12,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183830814] [2023-04-02 05:12:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183830814] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:12,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:12,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:12:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768166498] [2023-04-02 05:12:12,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:12:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:12:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:12:12,412 INFO L87 Difference]: Start difference. First operand 3356 states and 4919 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:12:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:13,993 INFO L93 Difference]: Finished difference Result 7098 states and 10307 transitions. [2023-04-02 05:12:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:12:13,994 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2023-04-02 05:12:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:14,014 INFO L225 Difference]: With dead ends: 7098 [2023-04-02 05:12:14,015 INFO L226 Difference]: Without dead ends: 4785 [2023-04-02 05:12:14,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:12:14,022 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 867 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:14,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 90 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:12:14,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2023-04-02 05:12:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 3861. [2023-04-02 05:12:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 3103 states have (on average 1.4901708024492426) internal successors, (4624), 3182 states have internal predecessors, (4624), 340 states have call successors, (340), 340 states have call predecessors, (340), 417 states have return successors, (642), 338 states have call predecessors, (642), 339 states have call successors, (642) [2023-04-02 05:12:14,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5606 transitions. [2023-04-02 05:12:14,392 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5606 transitions. Word has length 102 [2023-04-02 05:12:14,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:14,392 INFO L495 AbstractCegarLoop]: Abstraction has 3861 states and 5606 transitions. [2023-04-02 05:12:14,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:12:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5606 transitions. [2023-04-02 05:12:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:14,394 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:14,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:14,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:12:14,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:14,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:14,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1136101563, now seen corresponding path program 1 times [2023-04-02 05:12:14,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:14,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374864884] [2023-04-02 05:12:14,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:14,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:12:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:12:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:12:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:12:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:12:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:12:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 05:12:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374864884] [2023-04-02 05:12:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374864884] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:15,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:15,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:12:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006700427] [2023-04-02 05:12:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:15,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:12:15,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:12:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:12:15,124 INFO L87 Difference]: Start difference. First operand 3861 states and 5606 transitions. Second operand has 19 states, 19 states have (on average 4.894736842105263) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:12:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:26,364 INFO L93 Difference]: Finished difference Result 9228 states and 13301 transitions. [2023-04-02 05:12:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2023-04-02 05:12:26,365 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.894736842105263) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2023-04-02 05:12:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:26,384 INFO L225 Difference]: With dead ends: 9228 [2023-04-02 05:12:26,384 INFO L226 Difference]: Without dead ends: 7301 [2023-04-02 05:12:26,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12062 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=4059, Invalid=26391, Unknown=0, NotChecked=0, Total=30450 [2023-04-02 05:12:26,395 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 5808 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5828 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:26,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5828 Valid, 243 Invalid, 4541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 05:12:26,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2023-04-02 05:12:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6277. [2023-04-02 05:12:26,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6277 states, 5056 states have (on average 1.4972310126582278) internal successors, (7570), 5162 states have internal predecessors, (7570), 558 states have call successors, (558), 558 states have call predecessors, (558), 662 states have return successors, (1036), 556 states have call predecessors, (1036), 557 states have call successors, (1036) [2023-04-02 05:12:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 9164 transitions. [2023-04-02 05:12:26,992 INFO L78 Accepts]: Start accepts. Automaton has 6277 states and 9164 transitions. Word has length 151 [2023-04-02 05:12:26,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:26,992 INFO L495 AbstractCegarLoop]: Abstraction has 6277 states and 9164 transitions. [2023-04-02 05:12:26,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.894736842105263) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:12:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6277 states and 9164 transitions. [2023-04-02 05:12:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:26,994 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:26,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:26,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:12:26,995 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:26,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 55058574, now seen corresponding path program 1 times [2023-04-02 05:12:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:26,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304146597] [2023-04-02 05:12:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:12:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:12:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:12:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:12:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 05:12:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:12:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 05:12:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304146597] [2023-04-02 05:12:27,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304146597] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:27,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:27,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:12:27,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488534853] [2023-04-02 05:12:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:27,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:12:27,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:12:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:12:27,607 INFO L87 Difference]: Start difference. First operand 6277 states and 9164 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:12:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:39,083 INFO L93 Difference]: Finished difference Result 19132 states and 27745 transitions. [2023-04-02 05:12:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2023-04-02 05:12:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 151 [2023-04-02 05:12:39,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:39,140 INFO L225 Difference]: With dead ends: 19132 [2023-04-02 05:12:39,141 INFO L226 Difference]: Without dead ends: 13327 [2023-04-02 05:12:39,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11655 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3946, Invalid=25466, Unknown=0, NotChecked=0, Total=29412 [2023-04-02 05:12:39,168 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 5236 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 4488 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 4975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 4488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:39,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5255 Valid, 272 Invalid, 4975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 4488 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 05:12:39,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13327 states. [2023-04-02 05:12:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13327 to 11704. [2023-04-02 05:12:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11704 states, 9458 states have (on average 1.5074011418904631) internal successors, (14257), 9639 states have internal predecessors, (14257), 1033 states have call successors, (1033), 1033 states have call predecessors, (1033), 1212 states have return successors, (1903), 1031 states have call predecessors, (1903), 1032 states have call successors, (1903) [2023-04-02 05:12:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 17193 transitions. [2023-04-02 05:12:40,850 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 17193 transitions. Word has length 151 [2023-04-02 05:12:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:40,851 INFO L495 AbstractCegarLoop]: Abstraction has 11704 states and 17193 transitions. [2023-04-02 05:12:40,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:12:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 17193 transitions. [2023-04-02 05:12:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:40,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:40,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:40,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:12:40,857 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:40,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:40,857 INFO L85 PathProgramCache]: Analyzing trace with hash -155101802, now seen corresponding path program 1 times [2023-04-02 05:12:40,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:40,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551740939] [2023-04-02 05:12:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:40,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:12:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:12:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:12:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:12:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:12:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:12:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 05:12:41,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551740939] [2023-04-02 05:12:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551740939] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071837381] [2023-04-02 05:12:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:41,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:41,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:41,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:12:41,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 05:12:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:41,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-02 05:12:41,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:12:42,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:12:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 05:12:42,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071837381] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:12:42,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:12:42,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 11] total 28 [2023-04-02 05:12:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197917541] [2023-04-02 05:12:42,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:12:42,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 05:12:42,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:42,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 05:12:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:12:42,382 INFO L87 Difference]: Start difference. First operand 11704 states and 17193 transitions. Second operand has 28 states, 28 states have (on average 8.75) internal successors, (245), 22 states have internal predecessors, (245), 9 states have call successors, (44), 16 states have call predecessors, (44), 13 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2023-04-02 05:12:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:49,687 INFO L93 Difference]: Finished difference Result 44858 states and 64792 transitions. [2023-04-02 05:12:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-04-02 05:12:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.75) internal successors, (245), 22 states have internal predecessors, (245), 9 states have call successors, (44), 16 states have call predecessors, (44), 13 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) Word has length 151 [2023-04-02 05:12:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:49,768 INFO L225 Difference]: With dead ends: 44858 [2023-04-02 05:12:49,768 INFO L226 Difference]: Without dead ends: 33260 [2023-04-02 05:12:49,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 338 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=930, Invalid=2852, Unknown=0, NotChecked=0, Total=3782 [2023-04-02 05:12:49,791 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3591 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:49,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3594 Valid, 77 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:12:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33260 states. [2023-04-02 05:12:52,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33260 to 26988. [2023-04-02 05:12:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26988 states, 21365 states have (on average 1.4754505031593728) internal successors, (31523), 22351 states have internal predecessors, (31523), 2319 states have call successors, (2319), 2319 states have call predecessors, (2319), 3303 states have return successors, (4933), 2317 states have call predecessors, (4933), 2318 states have call successors, (4933) [2023-04-02 05:12:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26988 states to 26988 states and 38775 transitions. [2023-04-02 05:12:52,901 INFO L78 Accepts]: Start accepts. Automaton has 26988 states and 38775 transitions. Word has length 151 [2023-04-02 05:12:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:52,901 INFO L495 AbstractCegarLoop]: Abstraction has 26988 states and 38775 transitions. [2023-04-02 05:12:52,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.75) internal successors, (245), 22 states have internal predecessors, (245), 9 states have call successors, (44), 16 states have call predecessors, (44), 13 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2023-04-02 05:12:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 26988 states and 38775 transitions. [2023-04-02 05:12:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:52,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:52,906 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:52,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 05:12:53,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 05:12:53,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:53,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:53,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1728414208, now seen corresponding path program 1 times [2023-04-02 05:12:53,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013250119] [2023-04-02 05:12:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:12:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:12:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:12:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:12:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:12:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:12:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:12:53,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:53,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013250119] [2023-04-02 05:12:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013250119] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:53,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:53,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:12:53,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278760460] [2023-04-02 05:12:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:12:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:12:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:12:53,836 INFO L87 Difference]: Start difference. First operand 26988 states and 38775 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 05:13:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:08,468 INFO L93 Difference]: Finished difference Result 61700 states and 88120 transitions. [2023-04-02 05:13:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2023-04-02 05:13:08,469 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2023-04-02 05:13:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:08,601 INFO L225 Difference]: With dead ends: 61700 [2023-04-02 05:13:08,601 INFO L226 Difference]: Without dead ends: 47488 [2023-04-02 05:13:08,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11409 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3917, Invalid=25153, Unknown=0, NotChecked=0, Total=29070 [2023-04-02 05:13:08,638 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 4574 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 5123 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4593 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 5545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 5123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:08,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4593 Valid, 288 Invalid, 5545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 5123 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 05:13:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47488 states. [2023-04-02 05:13:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47488 to 40422. [2023-04-02 05:13:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40422 states, 32055 states have (on average 1.4812353766963031) internal successors, (47481), 33593 states have internal predecessors, (47481), 3415 states have call successors, (3415), 3415 states have call predecessors, (3415), 4951 states have return successors, (7361), 3413 states have call predecessors, (7361), 3414 states have call successors, (7361) [2023-04-02 05:13:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40422 states to 40422 states and 58257 transitions. [2023-04-02 05:13:12,911 INFO L78 Accepts]: Start accepts. Automaton has 40422 states and 58257 transitions. Word has length 151 [2023-04-02 05:13:12,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:12,912 INFO L495 AbstractCegarLoop]: Abstraction has 40422 states and 58257 transitions. [2023-04-02 05:13:12,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 05:13:12,912 INFO L276 IsEmpty]: Start isEmpty. Operand 40422 states and 58257 transitions. [2023-04-02 05:13:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:13:12,917 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:12,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:12,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:13:12,917 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:12,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1757916469, now seen corresponding path program 1 times [2023-04-02 05:13:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596352462] [2023-04-02 05:13:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:13:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:13:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:13:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:13:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:13:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:13:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:13:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:13:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:13:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:13:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 05:13:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:13:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:13:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:13:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:13,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596352462] [2023-04-02 05:13:13,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596352462] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:13,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:13,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:13:13,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205461004] [2023-04-02 05:13:13,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:13,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:13:13,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:13,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:13:13,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:13:13,737 INFO L87 Difference]: Start difference. First operand 40422 states and 58257 transitions. Second operand has 19 states, 19 states have (on average 5.105263157894737) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:13:29,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:29,700 INFO L93 Difference]: Finished difference Result 103800 states and 148553 transitions. [2023-04-02 05:13:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2023-04-02 05:13:29,701 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.105263157894737) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 151 [2023-04-02 05:13:29,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:29,896 INFO L225 Difference]: With dead ends: 103800 [2023-04-02 05:13:29,897 INFO L226 Difference]: Without dead ends: 71960 [2023-04-02 05:13:29,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10743 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3738, Invalid=23652, Unknown=0, NotChecked=0, Total=27390 [2023-04-02 05:13:29,952 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 5575 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 5278 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 5831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 5278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:29,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 308 Invalid, 5831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 5278 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 05:13:29,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71960 states. [2023-04-02 05:13:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71960 to 61460. [2023-04-02 05:13:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61460 states, 48723 states have (on average 1.481538493114135) internal successors, (72185), 51199 states have internal predecessors, (72185), 5131 states have call successors, (5131), 5131 states have call predecessors, (5131), 7605 states have return successors, (11102), 5129 states have call predecessors, (11102), 5130 states have call successors, (11102) [2023-04-02 05:13:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61460 states to 61460 states and 88418 transitions. [2023-04-02 05:13:36,690 INFO L78 Accepts]: Start accepts. Automaton has 61460 states and 88418 transitions. Word has length 151 [2023-04-02 05:13:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:36,690 INFO L495 AbstractCegarLoop]: Abstraction has 61460 states and 88418 transitions. [2023-04-02 05:13:36,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.105263157894737) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:13:36,691 INFO L276 IsEmpty]: Start isEmpty. Operand 61460 states and 88418 transitions. [2023-04-02 05:13:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 05:13:36,696 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:36,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:36,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:13:36,696 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:36,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash -522786243, now seen corresponding path program 1 times [2023-04-02 05:13:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354176482] [2023-04-02 05:13:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:13:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:13:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:13:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:13:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:13:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:13:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:13:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:13:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:13:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:13:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 05:13:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 05:13:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:13:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:13:37,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:37,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354176482] [2023-04-02 05:13:37,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354176482] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:13:37,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15842590] [2023-04-02 05:13:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:37,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:13:37,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:13:37,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:13:37,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 05:13:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:37,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:13:37,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:13:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:13:37,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:13:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 05:13:37,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15842590] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:13:37,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:13:37,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 21 [2023-04-02 05:13:37,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269588394] [2023-04-02 05:13:37,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:13:37,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 05:13:37,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 05:13:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:13:37,681 INFO L87 Difference]: Start difference. First operand 61460 states and 88418 transitions. Second operand has 21 states, 20 states have (on average 9.15) internal successors, (183), 14 states have internal predecessors, (183), 7 states have call successors, (43), 14 states have call predecessors, (43), 10 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2023-04-02 05:13:50,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:50,822 INFO L93 Difference]: Finished difference Result 151266 states and 215782 transitions. [2023-04-02 05:13:50,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-04-02 05:13:50,832 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 9.15) internal successors, (183), 14 states have internal predecessors, (183), 7 states have call successors, (43), 14 states have call predecessors, (43), 10 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 152 [2023-04-02 05:13:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:51,306 INFO L225 Difference]: With dead ends: 151266 [2023-04-02 05:13:51,306 INFO L226 Difference]: Without dead ends: 89912 [2023-04-02 05:13:51,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=687, Invalid=2505, Unknown=0, NotChecked=0, Total=3192 [2023-04-02 05:13:51,384 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2131 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:51,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 135 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:13:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89912 states. [2023-04-02 05:14:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89912 to 81682. [2023-04-02 05:14:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81682 states, 64218 states have (on average 1.4591547541187828) internal successors, (93704), 67629 states have internal predecessors, (93704), 7027 states have call successors, (7027), 7027 states have call predecessors, (7027), 10436 states have return successors, (15060), 7025 states have call predecessors, (15060), 7026 states have call successors, (15060) [2023-04-02 05:14:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81682 states to 81682 states and 115791 transitions. [2023-04-02 05:14:00,893 INFO L78 Accepts]: Start accepts. Automaton has 81682 states and 115791 transitions. Word has length 152 [2023-04-02 05:14:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:00,895 INFO L495 AbstractCegarLoop]: Abstraction has 81682 states and 115791 transitions. [2023-04-02 05:14:00,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 9.15) internal successors, (183), 14 states have internal predecessors, (183), 7 states have call successors, (43), 14 states have call predecessors, (43), 10 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2023-04-02 05:14:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 81682 states and 115791 transitions. [2023-04-02 05:14:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 05:14:00,901 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:00,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:00,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 05:14:01,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 05:14:01,107 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:01,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash 910237726, now seen corresponding path program 1 times [2023-04-02 05:14:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:01,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727037794] [2023-04-02 05:14:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:01,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:14:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:14:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:14:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:14:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:14:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:14:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:14:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:14:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:14:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:14:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 05:14:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 05:14:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:14:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 05:14:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:01,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727037794] [2023-04-02 05:14:01,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727037794] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:14:01,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778173559] [2023-04-02 05:14:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:01,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:14:01,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:14:01,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:14:01,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 05:14:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:01,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:14:01,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:14:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:14:01,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:14:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 05:14:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778173559] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:14:01,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:14:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23 [2023-04-02 05:14:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569311488] [2023-04-02 05:14:01,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:14:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 05:14:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 05:14:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:14:01,994 INFO L87 Difference]: Start difference. First operand 81682 states and 115791 transitions. Second operand has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-04-02 05:14:36,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:36,569 INFO L93 Difference]: Finished difference Result 304958 states and 436382 transitions. [2023-04-02 05:14:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-04-02 05:14:36,570 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) Word has length 152 [2023-04-02 05:14:36,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:38,194 INFO L225 Difference]: With dead ends: 304958 [2023-04-02 05:14:38,195 INFO L226 Difference]: Without dead ends: 223562 [2023-04-02 05:14:38,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3981 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1910, Invalid=10522, Unknown=0, NotChecked=0, Total=12432 [2023-04-02 05:14:38,392 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3263 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:38,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3277 Valid, 185 Invalid, 3809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:14:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223562 states. [2023-04-02 05:15:04,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223562 to 199048. [2023-04-02 05:15:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199048 states, 152246 states have (on average 1.418441206993944) internal successors, (215952), 159868 states have internal predecessors, (215952), 20303 states have call successors, (20303), 18878 states have call predecessors, (20303), 26498 states have return successors, (44270), 20301 states have call predecessors, (44270), 20302 states have call successors, (44270) [2023-04-02 05:15:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199048 states to 199048 states and 280525 transitions. [2023-04-02 05:15:06,004 INFO L78 Accepts]: Start accepts. Automaton has 199048 states and 280525 transitions. Word has length 152 [2023-04-02 05:15:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:06,004 INFO L495 AbstractCegarLoop]: Abstraction has 199048 states and 280525 transitions. [2023-04-02 05:15:06,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-04-02 05:15:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 199048 states and 280525 transitions. [2023-04-02 05:15:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 05:15:06,016 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:06,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:06,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 05:15:06,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:15:06,222 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:06,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1186762368, now seen corresponding path program 1 times [2023-04-02 05:15:06,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:06,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155142231] [2023-04-02 05:15:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:06,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:15:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:15:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:15:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:15:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:15:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:15:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:15:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:15:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:15:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:15:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 05:15:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 05:15:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:15:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 05:15:06,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155142231] [2023-04-02 05:15:06,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155142231] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:15:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422853953] [2023-04-02 05:15:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:06,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:15:06,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:15:06,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:15:06,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 05:15:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:06,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:15:06,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:15:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:15:06,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:15:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 05:15:07,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422853953] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:15:07,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:15:07,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 21 [2023-04-02 05:15:07,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754115886] [2023-04-02 05:15:07,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:15:07,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 05:15:07,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:07,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 05:15:07,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:15:07,029 INFO L87 Difference]: Start difference. First operand 199048 states and 280525 transitions. Second operand has 21 states, 20 states have (on average 9.6) internal successors, (192), 14 states have internal predecessors, (192), 7 states have call successors, (43), 15 states have call predecessors, (43), 10 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37)