/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.6.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:14:01,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:14:01,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:14:01,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:14:01,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:14:01,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:14:01,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:14:01,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:14:01,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:14:01,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:14:01,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:14:01,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:14:01,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:14:01,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:14:01,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:14:01,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:14:01,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:14:01,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:14:01,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:14:01,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:14:01,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:14:01,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:14:01,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:14:01,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:14:01,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:14:01,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:14:01,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:14:01,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:14:01,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:14:01,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:14:01,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:14:01,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:14:01,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:14:01,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:14:01,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:14:01,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:14:01,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:14:01,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:14:01,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:14:01,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:14:01,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:14:01,450 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 05:14:01,479 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:14:01,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:14:01,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:14:01,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:14:01,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:14:01,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:14:01,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:14:01,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:14:01,482 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:14:01,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:14:01,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:14:01,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:14:01,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:14:01,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:14:01,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:14:01,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:14:01,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:14:01,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:14:01,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:14:01,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:14:01,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:14:01,486 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:14:01,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:14:01,486 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:14:01,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:14:01,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:14:01,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:14:01,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:14:01,728 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:14:01,728 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:14:01,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2023-04-02 05:14:03,017 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:14:03,259 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:14:03,259 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2023-04-02 05:14:03,271 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42294ddbd/d61e60d646c840c6b8d124b74409bc4c/FLAG7a962728f [2023-04-02 05:14:03,286 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42294ddbd/d61e60d646c840c6b8d124b74409bc4c [2023-04-02 05:14:03,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:14:03,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:14:03,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:14:03,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:14:03,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:14:03,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b12227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03, skipping insertion in model container [2023-04-02 05:14:03,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:14:03,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:14:03,582 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.6.ufo.BOUNDED-12.pals.c[16936,16949] [2023-04-02 05:14:03,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:14:03,594 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:14:03,646 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.6.ufo.BOUNDED-12.pals.c[16936,16949] [2023-04-02 05:14:03,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:14:03,662 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:14:03,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03 WrapperNode [2023-04-02 05:14:03,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:14:03,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:14:03,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:14:03,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:14:03,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:14:03,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:14:03,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:14:03,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:14:03,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (1/1) ... [2023-04-02 05:14:03,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:14:03,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:14:03,751 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 05:14:03,777 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 05:14:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:14:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:14:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:14:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:14:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:14:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:14:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:14:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:14:03,931 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:14:03,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:14:04,465 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:14:04,472 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:14:04,473 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:14:04,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:14:04 BoogieIcfgContainer [2023-04-02 05:14:04,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:14:04,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:14:04,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:14:04,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:14:04,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:14:03" (1/3) ... [2023-04-02 05:14:04,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af63a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:14:04, skipping insertion in model container [2023-04-02 05:14:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:14:03" (2/3) ... [2023-04-02 05:14:04,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af63a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:14:04, skipping insertion in model container [2023-04-02 05:14:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:14:04" (3/3) ... [2023-04-02 05:14:04,483 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2023-04-02 05:14:04,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:14:04,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:14:04,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:14:04,566 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;@71643a86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:14:04,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:14:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 135 states have (on average 1.674074074074074) internal successors, (226), 136 states have internal predecessors, (226), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-04-02 05:14:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 05:14:04,581 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:04,582 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] [2023-04-02 05:14:04,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:04,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2137983611, now seen corresponding path program 1 times [2023-04-02 05:14:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927090928] [2023-04-02 05:14:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:14:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:14:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:14:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:14:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:14:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:14:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:14:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:14:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:05,399 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 05:14:05,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:05,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927090928] [2023-04-02 05:14:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927090928] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:05,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:05,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:14:05,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413728537] [2023-04-02 05:14:05,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:05,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:14:05,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:05,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:14:05,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:14:05,445 INFO L87 Difference]: Start difference. First operand has 161 states, 135 states have (on average 1.674074074074074) internal successors, (226), 136 states have internal predecessors, (226), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:06,641 INFO L93 Difference]: Finished difference Result 272 states and 409 transitions. [2023-04-02 05:14:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 05:14:06,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2023-04-02 05:14:06,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:06,654 INFO L225 Difference]: With dead ends: 272 [2023-04-02 05:14:06,654 INFO L226 Difference]: Without dead ends: 162 [2023-04-02 05:14:06,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:14:06,660 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1050 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:06,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 102 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:14:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-04-02 05:14:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-04-02 05:14:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.6590909090909092) internal successors, (219), 132 states have internal predecessors, (219), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:14:06,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 242 transitions. [2023-04-02 05:14:06,720 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 242 transitions. Word has length 74 [2023-04-02 05:14:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:06,720 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 242 transitions. [2023-04-02 05:14:06,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 242 transitions. [2023-04-02 05:14:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 05:14:06,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:06,723 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] [2023-04-02 05:14:06,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:14:06,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:06,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1577283833, now seen corresponding path program 1 times [2023-04-02 05:14:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:06,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851891086] [2023-04-02 05:14:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:06,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:14:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:14:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:14:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:14:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:14:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:14:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:14:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:14:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:07,293 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 05:14:07,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:07,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851891086] [2023-04-02 05:14:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851891086] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:07,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:14:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899757625] [2023-04-02 05:14:07,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:07,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:14:07,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:07,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:14:07,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:14:07,298 INFO L87 Difference]: Start difference. First operand 156 states and 242 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:14:09,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:09,478 INFO L93 Difference]: Finished difference Result 277 states and 417 transitions. [2023-04-02 05:14:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:14:09,479 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 74 [2023-04-02 05:14:09,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:09,481 INFO L225 Difference]: With dead ends: 277 [2023-04-02 05:14:09,482 INFO L226 Difference]: Without dead ends: 174 [2023-04-02 05:14:09,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:14:09,484 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1195 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:09,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 146 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:14:09,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-04-02 05:14:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 156. [2023-04-02 05:14:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.3484848484848484) internal successors, (178), 132 states have internal predecessors, (178), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:14:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 201 transitions. [2023-04-02 05:14:09,510 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 201 transitions. Word has length 74 [2023-04-02 05:14:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:09,510 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 201 transitions. [2023-04-02 05:14:09,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:14:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 201 transitions. [2023-04-02 05:14:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-04-02 05:14:09,513 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:09,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:09,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:14:09,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:09,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:09,515 INFO L85 PathProgramCache]: Analyzing trace with hash 842471037, now seen corresponding path program 1 times [2023-04-02 05:14:09,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:09,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530967057] [2023-04-02 05:14:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:09,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:14:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:10,492 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 05:14:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530967057] [2023-04-02 05:14:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530967057] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:10,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:14:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135053965] [2023-04-02 05:14:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:10,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:14:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:14:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:14:10,495 INFO L87 Difference]: Start difference. First operand 156 states and 201 transitions. Second operand has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:22,683 INFO L93 Difference]: Finished difference Result 1549 states and 2236 transitions. [2023-04-02 05:14:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-04-02 05:14:22,684 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2023-04-02 05:14:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:22,701 INFO L225 Difference]: With dead ends: 1549 [2023-04-02 05:14:22,701 INFO L226 Difference]: Without dead ends: 1452 [2023-04-02 05:14:22,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7331 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=3498, Invalid=17094, Unknown=0, NotChecked=0, Total=20592 [2023-04-02 05:14:22,718 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 5593 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 5024 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5607 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 5575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 5024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:22,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5607 Valid, 328 Invalid, 5575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [551 Valid, 5024 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 05:14:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2023-04-02 05:14:22,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1350. [2023-04-02 05:14:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1112 states have (on average 1.5197841726618706) internal successors, (1690), 1134 states have internal predecessors, (1690), 108 states have call successors, (108), 108 states have call predecessors, (108), 129 states have return successors, (191), 107 states have call predecessors, (191), 107 states have call successors, (191) [2023-04-02 05:14:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1989 transitions. [2023-04-02 05:14:22,963 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1989 transitions. Word has length 114 [2023-04-02 05:14:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:22,964 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1989 transitions. [2023-04-02 05:14:22,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1989 transitions. [2023-04-02 05:14:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 05:14:22,968 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:22,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:22,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:14:22,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:22,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -976194434, now seen corresponding path program 1 times [2023-04-02 05:14:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436055740] [2023-04-02 05:14:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:14:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,727 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 05:14:23,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:23,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436055740] [2023-04-02 05:14:23,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436055740] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:23,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:23,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:14:23,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656989270] [2023-04-02 05:14:23,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:23,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:14:23,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:14:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:14:23,731 INFO L87 Difference]: Start difference. First operand 1350 states and 1989 transitions. Second operand has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:26,511 INFO L93 Difference]: Finished difference Result 1583 states and 2332 transitions. [2023-04-02 05:14:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:14:26,512 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 115 [2023-04-02 05:14:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:26,523 INFO L225 Difference]: With dead ends: 1583 [2023-04-02 05:14:26,524 INFO L226 Difference]: Without dead ends: 1581 [2023-04-02 05:14:26,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2023-04-02 05:14:26,533 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 522 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:26,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 346 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:14:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2023-04-02 05:14:26,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1413. [2023-04-02 05:14:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1154 states have (on average 1.5008665511265165) internal successors, (1732), 1183 states have internal predecessors, (1732), 115 states have call successors, (115), 115 states have call predecessors, (115), 143 states have return successors, (205), 114 states have call predecessors, (205), 114 states have call successors, (205) [2023-04-02 05:14:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2052 transitions. [2023-04-02 05:14:26,724 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2052 transitions. Word has length 115 [2023-04-02 05:14:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:26,724 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 2052 transitions. [2023-04-02 05:14:26,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:14:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2052 transitions. [2023-04-02 05:14:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 05:14:26,729 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:26,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:26,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:14:26,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:26,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 59736181, now seen corresponding path program 1 times [2023-04-02 05:14:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:26,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635788370] [2023-04-02 05:14:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:14:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:27,368 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 05:14:27,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:27,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635788370] [2023-04-02 05:14:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635788370] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:27,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:14:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011393097] [2023-04-02 05:14:27,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:27,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:14:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:14:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:14:27,371 INFO L87 Difference]: Start difference. First operand 1413 states and 2052 transitions. Second operand has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:14:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:31,111 INFO L93 Difference]: Finished difference Result 6614 states and 9645 transitions. [2023-04-02 05:14:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 05:14:31,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2023-04-02 05:14:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:31,134 INFO L225 Difference]: With dead ends: 6614 [2023-04-02 05:14:31,134 INFO L226 Difference]: Without dead ends: 5260 [2023-04-02 05:14:31,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=417, Invalid=1389, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 05:14:31,140 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2162 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:31,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 148 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:14:31,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2023-04-02 05:14:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 4954. [2023-04-02 05:14:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 4025 states have (on average 1.5122981366459627) internal successors, (6087), 4134 states have internal predecessors, (6087), 410 states have call successors, (410), 410 states have call predecessors, (410), 518 states have return successors, (801), 409 states have call predecessors, (801), 409 states have call successors, (801) [2023-04-02 05:14:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 7298 transitions. [2023-04-02 05:14:31,720 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 7298 transitions. Word has length 116 [2023-04-02 05:14:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:31,722 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 7298 transitions. [2023-04-02 05:14:31,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:14:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 7298 transitions. [2023-04-02 05:14:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:31,725 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:31,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:31,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:14:31,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:31,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash 244286388, now seen corresponding path program 1 times [2023-04-02 05:14:31,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:31,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468210919] [2023-04-02 05:14:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:14:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:14:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:14:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:14:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:14:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:32,226 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 05:14:32,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:32,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468210919] [2023-04-02 05:14:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468210919] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287821951] [2023-04-02 05:14:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:32,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:32,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:32,232 INFO L87 Difference]: Start difference. First operand 4954 states and 7298 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:35,938 INFO L93 Difference]: Finished difference Result 11356 states and 16655 transitions. [2023-04-02 05:14:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:35,938 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:35,970 INFO L225 Difference]: With dead ends: 11356 [2023-04-02 05:14:35,970 INFO L226 Difference]: Without dead ends: 7563 [2023-04-02 05:14:35,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:35,980 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2254 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:35,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 83 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:14:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2023-04-02 05:14:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 5176. [2023-04-02 05:14:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 4209 states have (on average 1.5155618911855548) internal successors, (6379), 4325 states have internal predecessors, (6379), 426 states have call successors, (426), 426 states have call predecessors, (426), 540 states have return successors, (824), 424 states have call predecessors, (824), 425 states have call successors, (824) [2023-04-02 05:14:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7629 transitions. [2023-04-02 05:14:36,617 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 7629 transitions. Word has length 117 [2023-04-02 05:14:36,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:36,618 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 7629 transitions. [2023-04-02 05:14:36,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:36,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 7629 transitions. [2023-04-02 05:14:36,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:36,622 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:36,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:36,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:14:36,623 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:36,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:36,623 INFO L85 PathProgramCache]: Analyzing trace with hash -472018584, now seen corresponding path program 1 times [2023-04-02 05:14:36,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:36,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984595952] [2023-04-02 05:14:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:36,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:14:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:14:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:37,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:14:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:37,110 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 05:14:37,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:37,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984595952] [2023-04-02 05:14:37,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984595952] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:37,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:37,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005496225] [2023-04-02 05:14:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:37,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:37,112 INFO L87 Difference]: Start difference. First operand 5176 states and 7629 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:40,649 INFO L93 Difference]: Finished difference Result 13142 states and 19165 transitions. [2023-04-02 05:14:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:40,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:40,683 INFO L225 Difference]: With dead ends: 13142 [2023-04-02 05:14:40,683 INFO L226 Difference]: Without dead ends: 8064 [2023-04-02 05:14:40,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:40,696 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2059 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:40,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 78 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:14:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8064 states. [2023-04-02 05:14:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8064 to 5176. [2023-04-02 05:14:41,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 4207 states have (on average 1.5134299976230092) internal successors, (6367), 4325 states have internal predecessors, (6367), 426 states have call successors, (426), 426 states have call predecessors, (426), 542 states have return successors, (827), 424 states have call predecessors, (827), 425 states have call successors, (827) [2023-04-02 05:14:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7620 transitions. [2023-04-02 05:14:41,403 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 7620 transitions. Word has length 117 [2023-04-02 05:14:41,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:41,403 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 7620 transitions. [2023-04-02 05:14:41,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 7620 transitions. [2023-04-02 05:14:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:41,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:41,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:41,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:14:41,406 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:41,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -338350072, now seen corresponding path program 1 times [2023-04-02 05:14:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348283823] [2023-04-02 05:14:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:41,870 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 05:14:41,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:41,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348283823] [2023-04-02 05:14:41,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348283823] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55905428] [2023-04-02 05:14:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:41,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:41,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:41,872 INFO L87 Difference]: Start difference. First operand 5176 states and 7620 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:45,243 INFO L93 Difference]: Finished difference Result 10860 states and 15709 transitions. [2023-04-02 05:14:45,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:45,246 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:45,281 INFO L225 Difference]: With dead ends: 10860 [2023-04-02 05:14:45,282 INFO L226 Difference]: Without dead ends: 5932 [2023-04-02 05:14:45,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:45,294 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2352 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:45,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 78 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:14:45,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2023-04-02 05:14:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5292. [2023-04-02 05:14:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 4302 states have (on average 1.5120874012087402) internal successors, (6505), 4423 states have internal predecessors, (6505), 435 states have call successors, (435), 435 states have call predecessors, (435), 554 states have return successors, (841), 433 states have call predecessors, (841), 434 states have call successors, (841) [2023-04-02 05:14:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 7781 transitions. [2023-04-02 05:14:46,036 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 7781 transitions. Word has length 117 [2023-04-02 05:14:46,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:46,037 INFO L495 AbstractCegarLoop]: Abstraction has 5292 states and 7781 transitions. [2023-04-02 05:14:46,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:46,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 7781 transitions. [2023-04-02 05:14:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:46,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:46,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:46,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:14:46,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:46,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:46,041 INFO L85 PathProgramCache]: Analyzing trace with hash 933803573, now seen corresponding path program 1 times [2023-04-02 05:14:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875658849] [2023-04-02 05:14:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:46,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:14:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:14:46,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:46,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875658849] [2023-04-02 05:14:46,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875658849] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:46,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:46,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713723607] [2023-04-02 05:14:46,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:46,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:46,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:46,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:46,530 INFO L87 Difference]: Start difference. First operand 5292 states and 7781 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:49,842 INFO L93 Difference]: Finished difference Result 11696 states and 16933 transitions. [2023-04-02 05:14:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:49,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:49,868 INFO L225 Difference]: With dead ends: 11696 [2023-04-02 05:14:49,868 INFO L226 Difference]: Without dead ends: 6681 [2023-04-02 05:14:49,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:49,880 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2202 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:49,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2202 Valid, 83 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:14:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2023-04-02 05:14:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 5376. [2023-04-02 05:14:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 4369 states have (on average 1.5108720531013962) internal successors, (6601), 4497 states have internal predecessors, (6601), 440 states have call successors, (440), 440 states have call predecessors, (440), 566 states have return successors, (856), 438 states have call predecessors, (856), 439 states have call successors, (856) [2023-04-02 05:14:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 7897 transitions. [2023-04-02 05:14:50,431 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 7897 transitions. Word has length 117 [2023-04-02 05:14:50,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:50,431 INFO L495 AbstractCegarLoop]: Abstraction has 5376 states and 7897 transitions. [2023-04-02 05:14:50,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 7897 transitions. [2023-04-02 05:14:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:50,433 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:50,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:50,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:14:50,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:50,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -347886291, now seen corresponding path program 1 times [2023-04-02 05:14:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:50,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322271308] [2023-04-02 05:14:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:14:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:14:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:50,897 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 05:14:50,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:50,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322271308] [2023-04-02 05:14:50,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322271308] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:50,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:50,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:50,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369802029] [2023-04-02 05:14:50,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:50,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:50,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:50,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:50,899 INFO L87 Difference]: Start difference. First operand 5376 states and 7897 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:54,390 INFO L93 Difference]: Finished difference Result 12790 states and 18557 transitions. [2023-04-02 05:14:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:54,418 INFO L225 Difference]: With dead ends: 12790 [2023-04-02 05:14:54,418 INFO L226 Difference]: Without dead ends: 7613 [2023-04-02 05:14:54,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:54,432 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2081 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:54,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 83 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:14:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7613 states. [2023-04-02 05:14:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7613 to 5398. [2023-04-02 05:14:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 4386 states have (on average 1.5109439124487005) internal successors, (6627), 4517 states have internal predecessors, (6627), 441 states have call successors, (441), 441 states have call predecessors, (441), 570 states have return successors, (863), 439 states have call predecessors, (863), 440 states have call successors, (863) [2023-04-02 05:14:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 7931 transitions. [2023-04-02 05:14:55,068 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 7931 transitions. Word has length 117 [2023-04-02 05:14:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:55,068 INFO L495 AbstractCegarLoop]: Abstraction has 5398 states and 7931 transitions. [2023-04-02 05:14:55,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 7931 transitions. [2023-04-02 05:14:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:14:55,070 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:55,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:14:55,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:14:55,070 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:55,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash 554841475, now seen corresponding path program 1 times [2023-04-02 05:14:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:55,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051967524] [2023-04-02 05:14:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:55,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:14:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:14:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:14:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:14:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:14:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:55,545 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 05:14:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051967524] [2023-04-02 05:14:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051967524] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:55,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:55,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:14:55,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30906892] [2023-04-02 05:14:55,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:55,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:14:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:55,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:14:55,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:14:55,547 INFO L87 Difference]: Start difference. First operand 5398 states and 7931 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:59,074 INFO L93 Difference]: Finished difference Result 14437 states and 21069 transitions. [2023-04-02 05:14:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:14:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:14:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:59,100 INFO L225 Difference]: With dead ends: 14437 [2023-04-02 05:14:59,101 INFO L226 Difference]: Without dead ends: 9134 [2023-04-02 05:14:59,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:14:59,111 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2184 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:59,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 83 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:14:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2023-04-02 05:14:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 5456. [2023-04-02 05:14:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 4434 states have (on average 1.5148849797023005) internal successors, (6717), 4567 states have internal predecessors, (6717), 445 states have call successors, (445), 445 states have call predecessors, (445), 576 states have return successors, (880), 443 states have call predecessors, (880), 444 states have call successors, (880) [2023-04-02 05:14:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 8042 transitions. [2023-04-02 05:14:59,796 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 8042 transitions. Word has length 117 [2023-04-02 05:14:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:59,796 INFO L495 AbstractCegarLoop]: Abstraction has 5456 states and 8042 transitions. [2023-04-02 05:14:59,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:14:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 8042 transitions. [2023-04-02 05:14:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 05:14:59,801 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:59,802 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, 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] [2023-04-02 05:14:59,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:14:59,802 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:59,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:59,802 INFO L85 PathProgramCache]: Analyzing trace with hash -847698099, now seen corresponding path program 1 times [2023-04-02 05:14:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:59,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875553640] [2023-04-02 05:14:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:59,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:15:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:15:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:15:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:15:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:15:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:15:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:15:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:15:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:15:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:15:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:15:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:15:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:15:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 05:15:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:15:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 05:15:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875553640] [2023-04-02 05:15:00,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875553640] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:15:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190642678] [2023-04-02 05:15:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:00,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:15:00,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:15:00,243 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 05:15:00,251 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 05:15:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 05:15:00,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:15:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-04-02 05:15:00,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:15:00,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190642678] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:15:00,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:15:00,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2023-04-02 05:15:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368176977] [2023-04-02 05:15:00,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:15:00,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:15:00,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:00,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:15:00,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:15:00,703 INFO L87 Difference]: Start difference. First operand 5456 states and 8042 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:15:02,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:15:02,222 INFO L93 Difference]: Finished difference Result 12232 states and 18111 transitions. [2023-04-02 05:15:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:15:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 174 [2023-04-02 05:15:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:15:02,242 INFO L225 Difference]: With dead ends: 12232 [2023-04-02 05:15:02,242 INFO L226 Difference]: Without dead ends: 8203 [2023-04-02 05:15:02,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:15:02,250 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 314 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:15:02,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 119 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:15:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8203 states. [2023-04-02 05:15:03,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8203 to 7479. [2023-04-02 05:15:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7479 states, 6062 states have (on average 1.501979544704718) internal successors, (9105), 6192 states have internal predecessors, (9105), 644 states have call successors, (644), 644 states have call predecessors, (644), 772 states have return successors, (1190), 642 states have call predecessors, (1190), 643 states have call successors, (1190) [2023-04-02 05:15:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7479 states to 7479 states and 10939 transitions. [2023-04-02 05:15:03,171 INFO L78 Accepts]: Start accepts. Automaton has 7479 states and 10939 transitions. Word has length 174 [2023-04-02 05:15:03,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:03,172 INFO L495 AbstractCegarLoop]: Abstraction has 7479 states and 10939 transitions. [2023-04-02 05:15:03,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:15:03,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7479 states and 10939 transitions. [2023-04-02 05:15:03,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:15:03,175 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:03,176 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, 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] [2023-04-02 05:15:03,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 05:15:03,382 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 05:15:03,383 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:03,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1864784029, now seen corresponding path program 1 times [2023-04-02 05:15:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:03,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031101064] [2023-04-02 05:15:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:15:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:15:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:15:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:15:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:15:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:15:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:15:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:15:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:15:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:15:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 05:15:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:15:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:15:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:15:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:15:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:15:03,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:03,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031101064] [2023-04-02 05:15:03,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031101064] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:15:03,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293194321] [2023-04-02 05:15:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:03,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:15:03,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:15:03,994 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 05:15:04,027 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 05:15:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:04,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-02 05:15:04,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:15:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:15:04,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:15:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:15:05,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293194321] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:15:05,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:15:05,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 29 [2023-04-02 05:15:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35074015] [2023-04-02 05:15:05,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:15:05,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 05:15:05,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 05:15:05,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:15:05,100 INFO L87 Difference]: Start difference. First operand 7479 states and 10939 transitions. Second operand has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:15:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:15:10,730 INFO L93 Difference]: Finished difference Result 20241 states and 29049 transitions. [2023-04-02 05:15:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-04-02 05:15:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 175 [2023-04-02 05:15:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:15:10,778 INFO L225 Difference]: With dead ends: 20241 [2023-04-02 05:15:10,778 INFO L226 Difference]: Without dead ends: 13997 [2023-04-02 05:15:10,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 382 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=762, Invalid=2318, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 05:15:10,798 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2568 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:15:10,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2568 Valid, 110 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:15:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13997 states. [2023-04-02 05:15:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13997 to 9661. [2023-04-02 05:15:12,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 7649 states have (on average 1.4318211530919074) internal successors, (10952), 7866 states have internal predecessors, (10952), 898 states have call successors, (898), 898 states have call predecessors, (898), 1113 states have return successors, (1688), 896 states have call predecessors, (1688), 897 states have call successors, (1688) [2023-04-02 05:15:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 13538 transitions. [2023-04-02 05:15:12,074 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 13538 transitions. Word has length 175 [2023-04-02 05:15:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:12,074 INFO L495 AbstractCegarLoop]: Abstraction has 9661 states and 13538 transitions. [2023-04-02 05:15:12,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:15:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 13538 transitions. [2023-04-02 05:15:12,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:15:12,079 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:12,079 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, 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] [2023-04-02 05:15:12,088 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 05:15:12,285 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,SelfDestructingSolverStorable12 [2023-04-02 05:15:12,285 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:12,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:12,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1148479057, now seen corresponding path program 1 times [2023-04-02 05:15:12,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:12,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105397605] [2023-04-02 05:15:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:12,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:15:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:15:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:15:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:15:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:15:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:15:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:15:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:15:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:15:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:15:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:15:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:15:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:15:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:15:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:15:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 05:15:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105397605] [2023-04-02 05:15:13,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105397605] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:15:13,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:15:13,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:15:13,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472542717] [2023-04-02 05:15:13,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:15:13,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:15:13,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:15:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:15:13,484 INFO L87 Difference]: Start difference. First operand 9661 states and 13538 transitions. Second operand has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:15:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:15:36,204 INFO L93 Difference]: Finished difference Result 23764 states and 33490 transitions. [2023-04-02 05:15:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2023-04-02 05:15:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2023-04-02 05:15:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:15:36,265 INFO L225 Difference]: With dead ends: 23764 [2023-04-02 05:15:36,265 INFO L226 Difference]: Without dead ends: 19419 [2023-04-02 05:15:36,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24918 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=7221, Invalid=53541, Unknown=0, NotChecked=0, Total=60762 [2023-04-02 05:15:36,289 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 6326 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 8571 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 8571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:15:36,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6350 Valid, 508 Invalid, 9122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [551 Valid, 8571 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:15:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2023-04-02 05:15:38,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 16998. [2023-04-02 05:15:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16998 states, 13494 states have (on average 1.441233140655106) internal successors, (19448), 13825 states have internal predecessors, (19448), 1587 states have call successors, (1587), 1587 states have call predecessors, (1587), 1916 states have return successors, (2981), 1585 states have call predecessors, (2981), 1586 states have call successors, (2981) [2023-04-02 05:15:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16998 states to 16998 states and 24016 transitions. [2023-04-02 05:15:38,685 INFO L78 Accepts]: Start accepts. Automaton has 16998 states and 24016 transitions. Word has length 175 [2023-04-02 05:15:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:38,686 INFO L495 AbstractCegarLoop]: Abstraction has 16998 states and 24016 transitions. [2023-04-02 05:15:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:15:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 16998 states and 24016 transitions. [2023-04-02 05:15:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:15:38,691 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:38,691 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, 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] [2023-04-02 05:15:38,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:15:38,691 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:38,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1282147569, now seen corresponding path program 1 times [2023-04-02 05:15:38,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:38,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137045049] [2023-04-02 05:15:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:38,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:15:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:15:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:15:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:15:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:15:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:15:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:15:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:15:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:15:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:15:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:15:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:15:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:15:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 05:15:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:15:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 05:15:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137045049] [2023-04-02 05:15:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137045049] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:15:39,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:15:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:15:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951240833] [2023-04-02 05:15:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:15:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:15:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:15:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:15:39,782 INFO L87 Difference]: Start difference. First operand 16998 states and 24016 transitions. Second operand has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:16:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:04,454 INFO L93 Difference]: Finished difference Result 53379 states and 75392 transitions. [2023-04-02 05:16:04,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2023-04-02 05:16:04,455 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 175 [2023-04-02 05:16:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:04,579 INFO L225 Difference]: With dead ends: 53379 [2023-04-02 05:16:04,579 INFO L226 Difference]: Without dead ends: 37245 [2023-04-02 05:16:04,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23817 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=6949, Invalid=50891, Unknown=0, NotChecked=0, Total=57840 [2023-04-02 05:16:04,623 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 4585 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 9751 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 10156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 9751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:04,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4608 Valid, 621 Invalid, 10156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [405 Valid, 9751 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 05:16:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37245 states. [2023-04-02 05:16:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37245 to 33378. [2023-04-02 05:16:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33378 states, 26593 states have (on average 1.4536156131312752) internal successors, (38656), 27247 states have internal predecessors, (38656), 3066 states have call successors, (3066), 3066 states have call predecessors, (3066), 3718 states have return successors, (5814), 3064 states have call predecessors, (5814), 3065 states have call successors, (5814) [2023-04-02 05:16:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33378 states to 33378 states and 47536 transitions. [2023-04-02 05:16:09,465 INFO L78 Accepts]: Start accepts. Automaton has 33378 states and 47536 transitions. Word has length 175 [2023-04-02 05:16:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:09,465 INFO L495 AbstractCegarLoop]: Abstraction has 33378 states and 47536 transitions. [2023-04-02 05:16:09,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:16:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 33378 states and 47536 transitions. [2023-04-02 05:16:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:16:09,470 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:09,471 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, 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] [2023-04-02 05:16:09,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:16:09,471 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:09,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1740666082, now seen corresponding path program 1 times [2023-04-02 05:16:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057348617] [2023-04-02 05:16:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:09,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:16:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:16:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:16:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:16:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:16:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:16:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:16:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:16:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:16:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:16:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:16:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:16:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:16:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:16:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:16:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 05:16:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:10,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057348617] [2023-04-02 05:16:10,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057348617] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:10,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:10,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:16:10,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624061823] [2023-04-02 05:16:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:10,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:16:10,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:10,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:16:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:16:10,423 INFO L87 Difference]: Start difference. First operand 33378 states and 47536 transitions. Second operand has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:16:38,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:38,014 INFO L93 Difference]: Finished difference Result 94657 states and 134507 transitions. [2023-04-02 05:16:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-04-02 05:16:38,015 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 175 [2023-04-02 05:16:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:38,239 INFO L225 Difference]: With dead ends: 94657 [2023-04-02 05:16:38,239 INFO L226 Difference]: Without dead ends: 66031 [2023-04-02 05:16:38,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22244 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=6639, Invalid=47883, Unknown=0, NotChecked=0, Total=54522 [2023-04-02 05:16:38,302 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 5514 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 8840 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 9342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 8840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:38,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5538 Valid, 578 Invalid, 9342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [502 Valid, 8840 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-02 05:16:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66031 states. [2023-04-02 05:16:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66031 to 57054. [2023-04-02 05:16:45,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57054 states, 45505 states have (on average 1.4585649928579276) internal successors, (66372), 46699 states have internal predecessors, (66372), 5178 states have call successors, (5178), 5178 states have call predecessors, (5178), 6370 states have return successors, (9874), 5176 states have call predecessors, (9874), 5177 states have call successors, (9874) [2023-04-02 05:16:46,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57054 states to 57054 states and 81424 transitions. [2023-04-02 05:16:46,007 INFO L78 Accepts]: Start accepts. Automaton has 57054 states and 81424 transitions. Word has length 175 [2023-04-02 05:16:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:46,008 INFO L495 AbstractCegarLoop]: Abstraction has 57054 states and 81424 transitions. [2023-04-02 05:16:46,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:16:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 57054 states and 81424 transitions. [2023-04-02 05:16:46,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:16:46,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:46,014 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, 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] [2023-04-02 05:16:46,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:16:46,014 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:46,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1272611350, now seen corresponding path program 1 times [2023-04-02 05:16:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969330505] [2023-04-02 05:16:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:16:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:16:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:16:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:16:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:16:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:16:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:16:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:16:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:16:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:16:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:16:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:16:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:16:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:16:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:16:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:16:46,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:46,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969330505] [2023-04-02 05:16:46,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969330505] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:16:46,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181698082] [2023-04-02 05:16:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:46,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:46,579 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 05:16:46,579 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 05:16:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:46,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-02 05:16:46,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:16:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:16:47,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:16:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 05:16:47,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181698082] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:16:47,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:16:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 29 [2023-04-02 05:16:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087793791] [2023-04-02 05:16:47,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:16:47,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 05:16:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 05:16:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:16:47,542 INFO L87 Difference]: Start difference. First operand 57054 states and 81424 transitions. Second operand has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:17:12,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:12,750 INFO L93 Difference]: Finished difference Result 222115 states and 314385 transitions. [2023-04-02 05:17:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 05:17:12,751 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 175 [2023-04-02 05:17:12,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:13,401 INFO L225 Difference]: With dead ends: 222115 [2023-04-02 05:17:13,401 INFO L226 Difference]: Without dead ends: 165197 [2023-04-02 05:17:13,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 393 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1078, Invalid=3344, Unknown=0, NotChecked=0, Total=4422 [2023-04-02 05:17:13,505 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3711 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:13,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 96 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:17:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165197 states. [2023-04-02 05:17:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165197 to 124242. [2023-04-02 05:17:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124242 states, 97755 states have (on average 1.4380338601606055) internal successors, (140575), 102093 states have internal predecessors, (140575), 11075 states have call successors, (11075), 11075 states have call predecessors, (11075), 15411 states have return successors, (23080), 11073 states have call predecessors, (23080), 11074 states have call successors, (23080) [2023-04-02 05:17:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 174730 transitions. [2023-04-02 05:17:31,285 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 174730 transitions. Word has length 175 [2023-04-02 05:17:31,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:31,286 INFO L495 AbstractCegarLoop]: Abstraction has 124242 states and 174730 transitions. [2023-04-02 05:17:31,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:17:31,287 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 174730 transitions. [2023-04-02 05:17:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:17:31,296 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:31,297 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, 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] [2023-04-02 05:17:31,304 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 05:17:31,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:31,504 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:31,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:31,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2119628180, now seen corresponding path program 1 times [2023-04-02 05:17:31,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:31,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810229680] [2023-04-02 05:17:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:17:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:17:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:17:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:17:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:17:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:17:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:17:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:17:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:17:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:17:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:17:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 05:17:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:17:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:17:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:17:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:17:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 05:17:32,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:32,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810229680] [2023-04-02 05:17:32,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810229680] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:17:32,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:17:32,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:17:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703254040] [2023-04-02 05:17:32,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:17:32,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:17:32,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:32,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:17:32,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:17:32,738 INFO L87 Difference]: Start difference. First operand 124242 states and 174730 transitions. Second operand has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17)