/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.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:10:41,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:10:41,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:10:41,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:10:41,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:10:41,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:10:41,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:10:41,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:10:41,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:10:41,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:10:41,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:10:41,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:10:41,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:10:41,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:10:41,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:10:41,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:10:41,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:10:41,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:10:41,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:10:41,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:10:41,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:10:41,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:10:41,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:10:41,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:10:41,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:10:41,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:10:41,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:10:41,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:10:41,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:10:41,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:10:41,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:10:41,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:10:41,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:10:41,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:10:41,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:10:41,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:10:42,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:10:42,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:10:42,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:10:42,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:10:42,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:10:42,003 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 05:10:42,032 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:10:42,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:10:42,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:10:42,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:10:42,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:10:42,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:10:42,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:10:42,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:10:42,035 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:10:42,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:10:42,036 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:10:42,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:10:42,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:10:42,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:10:42,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:10:42,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:10:42,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:10:42,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:10:42,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:10:42,039 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:10:42,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:10:42,039 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:10:42,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:10:42,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:10:42,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:10:42,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:10:42,285 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:10:42,285 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:10:42,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-04-02 05:10:43,416 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:10:43,685 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:10:43,686 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-04-02 05:10:43,696 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7833f287e/de47ae1a9eef4c27b181765492489417/FLAGf1246db82 [2023-04-02 05:10:43,711 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7833f287e/de47ae1a9eef4c27b181765492489417 [2023-04-02 05:10:43,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:10:43,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:10:43,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:10:43,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:10:43,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:10:43,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:10:43" (1/1) ... [2023-04-02 05:10:43,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2131292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:43, skipping insertion in model container [2023-04-02 05:10:43,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:10:43" (1/1) ... [2023-04-02 05:10:43,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:10:43,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:10:43,922 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.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2023-04-02 05:10:43,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:10:43,938 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:10:43,989 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.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2023-04-02 05:10:43,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:10:44,003 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:10:44,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44 WrapperNode [2023-04-02 05:10:44,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:10:44,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:10:44,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:10:44,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:10:44,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:10:44,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:10:44,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:10:44,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:10:44,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (1/1) ... [2023-04-02 05:10:44,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:10:44,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:10:44,098 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 05:10:44,102 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 05:10:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:10:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:10:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:10:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:10:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:10:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:10:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:10:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:10:44,241 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:10:44,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:10:44,677 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:10:44,683 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:10:44,684 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:10:44,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:10:44 BoogieIcfgContainer [2023-04-02 05:10:44,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:10:44,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:10:44,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:10:44,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:10:44,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:10:43" (1/3) ... [2023-04-02 05:10:44,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ade5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:10:44, skipping insertion in model container [2023-04-02 05:10:44,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:10:44" (2/3) ... [2023-04-02 05:10:44,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ade5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:10:44, skipping insertion in model container [2023-04-02 05:10:44,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:10:44" (3/3) ... [2023-04-02 05:10:44,693 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-04-02 05:10:44,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:10:44,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:10:44,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:10:44,775 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;@5fc5ea00, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:10:44,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:10:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 96 states have (on average 1.625) internal successors, (156), 98 states have internal predecessors, (156), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:10:44,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 05:10:44,793 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:44,794 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] [2023-04-02 05:10:44,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:44,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1027925183, now seen corresponding path program 1 times [2023-04-02 05:10:44,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:44,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251091043] [2023-04-02 05:10:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:44,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:10:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:10:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:10:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:10:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:10:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:10:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:45,460 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 05:10:45,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251091043] [2023-04-02 05:10:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251091043] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:45,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 05:10:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756150901] [2023-04-02 05:10:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:45,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 05:10:45,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 05:10:45,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:10:45,529 INFO L87 Difference]: Start difference. First operand has 118 states, 96 states have (on average 1.625) internal successors, (156), 98 states have internal predecessors, (156), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:46,199 INFO L93 Difference]: Finished difference Result 197 states and 290 transitions. [2023-04-02 05:10:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:10:46,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-04-02 05:10:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:46,208 INFO L225 Difference]: With dead ends: 197 [2023-04-02 05:10:46,208 INFO L226 Difference]: Without dead ends: 118 [2023-04-02 05:10:46,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:10:46,213 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 253 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:46,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 48 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:10:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-04-02 05:10:46,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2023-04-02 05:10:46,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.6021505376344085) internal successors, (149), 94 states have internal predecessors, (149), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:10:46,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 168 transitions. [2023-04-02 05:10:46,262 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 168 transitions. Word has length 60 [2023-04-02 05:10:46,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:46,263 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 168 transitions. [2023-04-02 05:10:46,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 168 transitions. [2023-04-02 05:10:46,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 05:10:46,265 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:46,265 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] [2023-04-02 05:10:46,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:10:46,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:46,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash -134438845, now seen corresponding path program 1 times [2023-04-02 05:10:46,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:46,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210424299] [2023-04-02 05:10:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:46,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:10:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:10:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:10:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:10:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:10:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:10:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:46,672 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 05:10:46,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:46,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210424299] [2023-04-02 05:10:46,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210424299] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:46,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:46,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:10:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454913312] [2023-04-02 05:10:46,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:46,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:10:46,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:46,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:10:46,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:10:46,676 INFO L87 Difference]: Start difference. First operand 113 states and 168 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:10:47,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:47,912 INFO L93 Difference]: Finished difference Result 195 states and 282 transitions. [2023-04-02 05:10:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:10:47,913 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-04-02 05:10:47,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:47,914 INFO L225 Difference]: With dead ends: 195 [2023-04-02 05:10:47,915 INFO L226 Difference]: Without dead ends: 118 [2023-04-02 05:10:47,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:10:47,917 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 523 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:47,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 132 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:10:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-04-02 05:10:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2023-04-02 05:10:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 94 states have internal predecessors, (125), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:10:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2023-04-02 05:10:47,938 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 60 [2023-04-02 05:10:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:47,938 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2023-04-02 05:10:47,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:10:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2023-04-02 05:10:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 05:10:47,940 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:47,940 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] [2023-04-02 05:10:47,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:10:47,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:47,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:47,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1407579156, now seen corresponding path program 1 times [2023-04-02 05:10:47,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:47,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41963056] [2023-04-02 05:10:47,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:47,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:10:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:10:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:10:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:10:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:10:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:10:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:48,504 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 05:10:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41963056] [2023-04-02 05:10:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41963056] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:48,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:48,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:10:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110959680] [2023-04-02 05:10:48,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:48,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:10:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:10:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:10:48,507 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:52,927 INFO L93 Difference]: Finished difference Result 822 states and 1158 transitions. [2023-04-02 05:10:52,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-04-02 05:10:52,928 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2023-04-02 05:10:52,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:52,941 INFO L225 Difference]: With dead ends: 822 [2023-04-02 05:10:52,942 INFO L226 Difference]: Without dead ends: 751 [2023-04-02 05:10:52,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1191, Invalid=4661, Unknown=0, NotChecked=0, Total=5852 [2023-04-02 05:10:52,946 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 4038 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:52,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4048 Valid, 109 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:10:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-04-02 05:10:53,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 690. [2023-04-02 05:10:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 563 states have (on average 1.4866785079928952) internal successors, (837), 575 states have internal predecessors, (837), 58 states have call successors, (58), 58 states have call predecessors, (58), 68 states have return successors, (97), 57 states have call predecessors, (97), 57 states have call successors, (97) [2023-04-02 05:10:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 992 transitions. [2023-04-02 05:10:53,063 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 992 transitions. Word has length 83 [2023-04-02 05:10:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:53,065 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 992 transitions. [2023-04-02 05:10:53,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 992 transitions. [2023-04-02 05:10:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 05:10:53,073 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:53,073 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] [2023-04-02 05:10:53,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:10:53,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:53,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:53,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1682879591, now seen corresponding path program 1 times [2023-04-02 05:10:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:53,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734668447] [2023-04-02 05:10:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:10:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:10:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:10:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:10:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:10:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:10:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:53,694 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 05:10:53,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:53,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734668447] [2023-04-02 05:10:53,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734668447] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:53,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:53,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:10:53,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816893014] [2023-04-02 05:10:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:53,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:10:53,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:10:53,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:10:53,698 INFO L87 Difference]: Start difference. First operand 690 states and 992 transitions. Second operand has 17 states, 15 states have (on average 4.4) internal successors, (66), 9 states have internal predecessors, (66), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:55,198 INFO L93 Difference]: Finished difference Result 831 states and 1191 transitions. [2023-04-02 05:10:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:10:55,199 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.4) internal successors, (66), 9 states have internal predecessors, (66), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-04-02 05:10:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:55,204 INFO L225 Difference]: With dead ends: 831 [2023-04-02 05:10:55,204 INFO L226 Difference]: Without dead ends: 829 [2023-04-02 05:10:55,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:10:55,206 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 509 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:55,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 272 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:10:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2023-04-02 05:10:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 735. [2023-04-02 05:10:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 593 states have (on average 1.4620573355817876) internal successors, (867), 610 states have internal predecessors, (867), 63 states have call successors, (63), 63 states have call predecessors, (63), 78 states have return successors, (107), 62 states have call predecessors, (107), 62 states have call successors, (107) [2023-04-02 05:10:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1037 transitions. [2023-04-02 05:10:55,285 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1037 transitions. Word has length 84 [2023-04-02 05:10:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:55,286 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 1037 transitions. [2023-04-02 05:10:55,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.4) internal successors, (66), 9 states have internal predecessors, (66), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1037 transitions. [2023-04-02 05:10:55,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:10:55,287 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:55,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:10:55,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:10:55,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:55,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:55,288 INFO L85 PathProgramCache]: Analyzing trace with hash -47273116, now seen corresponding path program 1 times [2023-04-02 05:10:55,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:55,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784397970] [2023-04-02 05:10:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:55,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:10:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:10:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:10:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:10:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:10:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:10:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:55,631 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 05:10:55,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:55,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784397970] [2023-04-02 05:10:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784397970] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:55,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:55,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:10:55,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089168976] [2023-04-02 05:10:55,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:55,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:10:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:10:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:10:55,634 INFO L87 Difference]: Start difference. First operand 735 states and 1037 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:57,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:57,120 INFO L93 Difference]: Finished difference Result 2596 states and 3712 transitions. [2023-04-02 05:10:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:10:57,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2023-04-02 05:10:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:57,130 INFO L225 Difference]: With dead ends: 2596 [2023-04-02 05:10:57,131 INFO L226 Difference]: Without dead ends: 1903 [2023-04-02 05:10:57,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:10:57,134 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1008 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:57,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 81 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:10:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2023-04-02 05:10:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1765. [2023-04-02 05:10:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1410 states have (on average 1.4652482269503546) internal successors, (2066), 1450 states have internal predecessors, (2066), 158 states have call successors, (158), 158 states have call predecessors, (158), 196 states have return successors, (306), 157 states have call predecessors, (306), 157 states have call successors, (306) [2023-04-02 05:10:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2530 transitions. [2023-04-02 05:10:57,317 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2530 transitions. Word has length 85 [2023-04-02 05:10:57,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:57,318 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 2530 transitions. [2023-04-02 05:10:57,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:10:57,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2530 transitions. [2023-04-02 05:10:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 05:10:57,324 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:57,324 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] [2023-04-02 05:10:57,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:10:57,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:57,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1671421506, now seen corresponding path program 1 times [2023-04-02 05:10:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424241608] [2023-04-02 05:10:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:10:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:10:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:10:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:10:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:10:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:10:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:57,684 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 05:10:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424241608] [2023-04-02 05:10:57,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424241608] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:57,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:57,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:10:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662585273] [2023-04-02 05:10:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:57,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:10:57,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:57,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:10:57,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:10:57,687 INFO L87 Difference]: Start difference. First operand 1765 states and 2530 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:10:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:10:59,602 INFO L93 Difference]: Finished difference Result 3967 states and 5601 transitions. [2023-04-02 05:10:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:10:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 86 [2023-04-02 05:10:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:10:59,614 INFO L225 Difference]: With dead ends: 3967 [2023-04-02 05:10:59,614 INFO L226 Difference]: Without dead ends: 2244 [2023-04-02 05:10:59,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:10:59,621 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1238 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:10:59,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 60 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:10:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2023-04-02 05:10:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 1978. [2023-04-02 05:10:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1578 states have (on average 1.4683143219264891) internal successors, (2317), 1631 states have internal predecessors, (2317), 174 states have call successors, (174), 174 states have call predecessors, (174), 225 states have return successors, (342), 172 states have call predecessors, (342), 173 states have call successors, (342) [2023-04-02 05:10:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2833 transitions. [2023-04-02 05:10:59,885 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2833 transitions. Word has length 86 [2023-04-02 05:10:59,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:59,886 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2833 transitions. [2023-04-02 05:10:59,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:10:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2833 transitions. [2023-04-02 05:10:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 05:10:59,889 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:59,889 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] [2023-04-02 05:10:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:10:59,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:59,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1897645516, now seen corresponding path program 1 times [2023-04-02 05:10:59,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:59,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990670784] [2023-04-02 05:10:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:59,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:11:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:11:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:00,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:00,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990670784] [2023-04-02 05:11:00,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990670784] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:00,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:00,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:11:00,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382730552] [2023-04-02 05:11:00,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:00,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:11:00,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:00,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:11:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:11:00,236 INFO L87 Difference]: Start difference. First operand 1978 states and 2833 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:11:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:02,167 INFO L93 Difference]: Finished difference Result 4464 states and 6293 transitions. [2023-04-02 05:11:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:11:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 86 [2023-04-02 05:11:02,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:02,179 INFO L225 Difference]: With dead ends: 4464 [2023-04-02 05:11:02,179 INFO L226 Difference]: Without dead ends: 2643 [2023-04-02 05:11:02,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:11:02,187 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1246 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:02,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 56 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:11:02,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2023-04-02 05:11:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2145. [2023-04-02 05:11:02,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 1712 states have (on average 1.471378504672897) internal successors, (2519), 1778 states have internal predecessors, (2519), 184 states have call successors, (184), 184 states have call predecessors, (184), 248 states have return successors, (370), 182 states have call predecessors, (370), 183 states have call successors, (370) [2023-04-02 05:11:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3073 transitions. [2023-04-02 05:11:02,421 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3073 transitions. Word has length 86 [2023-04-02 05:11:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:02,422 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 3073 transitions. [2023-04-02 05:11:02,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:11:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3073 transitions. [2023-04-02 05:11:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 05:11:02,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:02,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:11:02,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:02,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1767866758, now seen corresponding path program 1 times [2023-04-02 05:11:02,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:02,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269957949] [2023-04-02 05:11:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:11:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:11:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:11:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:02,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:02,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269957949] [2023-04-02 05:11:02,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269957949] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:02,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:02,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:11:02,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330064693] [2023-04-02 05:11:02,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:02,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:11:02,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:02,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:11:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:11:02,763 INFO L87 Difference]: Start difference. First operand 2145 states and 3073 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:11:04,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:04,606 INFO L93 Difference]: Finished difference Result 5416 states and 7699 transitions. [2023-04-02 05:11:04,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:11:04,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 86 [2023-04-02 05:11:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:04,625 INFO L225 Difference]: With dead ends: 5416 [2023-04-02 05:11:04,625 INFO L226 Difference]: Without dead ends: 3363 [2023-04-02 05:11:04,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:11:04,632 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1082 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:04,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 57 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:11:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2023-04-02 05:11:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2214. [2023-04-02 05:11:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2214 states, 1768 states have (on average 1.4756787330316743) internal successors, (2609), 1839 states have internal predecessors, (2609), 188 states have call successors, (188), 188 states have call predecessors, (188), 257 states have return successors, (384), 186 states have call predecessors, (384), 187 states have call successors, (384) [2023-04-02 05:11:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 3181 transitions. [2023-04-02 05:11:04,873 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 3181 transitions. Word has length 86 [2023-04-02 05:11:04,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:04,874 INFO L495 AbstractCegarLoop]: Abstraction has 2214 states and 3181 transitions. [2023-04-02 05:11:04,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:11:04,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 3181 transitions. [2023-04-02 05:11:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 05:11:04,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:04,875 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] [2023-04-02 05:11:04,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:11:04,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:04,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 684367813, now seen corresponding path program 1 times [2023-04-02 05:11:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461904812] [2023-04-02 05:11:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:11:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 05:11:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 05:11:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:11:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:05,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:05,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:05,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461904812] [2023-04-02 05:11:05,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461904812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:05,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:05,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:11:05,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082470484] [2023-04-02 05:11:05,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:05,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:11:05,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:11:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:11:05,206 INFO L87 Difference]: Start difference. First operand 2214 states and 3181 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:11:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:06,494 INFO L93 Difference]: Finished difference Result 4700 states and 6705 transitions. [2023-04-02 05:11:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:11:06,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2023-04-02 05:11:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:06,509 INFO L225 Difference]: With dead ends: 4700 [2023-04-02 05:11:06,509 INFO L226 Difference]: Without dead ends: 3148 [2023-04-02 05:11:06,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:11:06,515 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 387 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:06,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 81 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:11:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2023-04-02 05:11:06,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2578. [2023-04-02 05:11:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2048 states have (on average 1.45751953125) internal successors, (2985), 2103 states have internal predecessors, (2985), 238 states have call successors, (238), 238 states have call predecessors, (238), 291 states have return successors, (444), 236 states have call predecessors, (444), 237 states have call successors, (444) [2023-04-02 05:11:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3667 transitions. [2023-04-02 05:11:06,830 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3667 transitions. Word has length 87 [2023-04-02 05:11:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:06,831 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 3667 transitions. [2023-04-02 05:11:06,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:11:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3667 transitions. [2023-04-02 05:11:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 05:11:06,833 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:06,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:06,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:11:06,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:06,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash 822826564, now seen corresponding path program 1 times [2023-04-02 05:11:06,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:06,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525063268] [2023-04-02 05:11:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:11:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 05:11:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 05:11:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:11:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 05:11:07,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:07,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525063268] [2023-04-02 05:11:07,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525063268] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:07,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:07,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:11:07,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131505028] [2023-04-02 05:11:07,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:07,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:11:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:07,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:11:07,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:11:07,471 INFO L87 Difference]: Start difference. First operand 2578 states and 3667 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:11:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:14,261 INFO L93 Difference]: Finished difference Result 6719 states and 9505 transitions. [2023-04-02 05:11:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-04-02 05:11:14,262 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 129 [2023-04-02 05:11:14,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:14,279 INFO L225 Difference]: With dead ends: 6719 [2023-04-02 05:11:14,279 INFO L226 Difference]: Without dead ends: 4523 [2023-04-02 05:11:14,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4756 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1965, Invalid=10917, Unknown=0, NotChecked=0, Total=12882 [2023-04-02 05:11:14,288 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 4013 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4029 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:14,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4029 Valid, 186 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:11:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4523 states. [2023-04-02 05:11:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4523 to 4150. [2023-04-02 05:11:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4150 states, 3304 states have (on average 1.4633777239709442) internal successors, (4835), 3375 states have internal predecessors, (4835), 388 states have call successors, (388), 388 states have call predecessors, (388), 457 states have return successors, (708), 386 states have call predecessors, (708), 387 states have call successors, (708) [2023-04-02 05:11:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4150 states to 4150 states and 5931 transitions. [2023-04-02 05:11:14,745 INFO L78 Accepts]: Start accepts. Automaton has 4150 states and 5931 transitions. Word has length 129 [2023-04-02 05:11:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:14,745 INFO L495 AbstractCegarLoop]: Abstraction has 4150 states and 5931 transitions. [2023-04-02 05:11:14,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:11:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4150 states and 5931 transitions. [2023-04-02 05:11:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 05:11:14,749 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:14,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:14,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:11:14,749 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:14,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash 96926290, now seen corresponding path program 1 times [2023-04-02 05:11:14,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:14,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343120982] [2023-04-02 05:11:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:14,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:11:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 05:11:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:11:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:11:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 05:11:15,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:15,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343120982] [2023-04-02 05:11:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343120982] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:15,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:11:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070668800] [2023-04-02 05:11:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:15,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:11:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:11:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:11:15,343 INFO L87 Difference]: Start difference. First operand 4150 states and 5931 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:11:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:21,556 INFO L93 Difference]: Finished difference Result 10966 states and 15593 transitions. [2023-04-02 05:11:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-04-02 05:11:21,557 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2023-04-02 05:11:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:21,587 INFO L225 Difference]: With dead ends: 10966 [2023-04-02 05:11:21,588 INFO L226 Difference]: Without dead ends: 7526 [2023-04-02 05:11:21,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4272 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1839, Invalid=9933, Unknown=0, NotChecked=0, Total=11772 [2023-04-02 05:11:21,600 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2863 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2858 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:21,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 189 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2858 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:11:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2023-04-02 05:11:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 6602. [2023-04-02 05:11:22,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6602 states, 5272 states have (on average 1.472496206373293) internal successors, (7763), 5381 states have internal predecessors, (7763), 611 states have call successors, (611), 611 states have call predecessors, (611), 718 states have return successors, (1105), 609 states have call predecessors, (1105), 610 states have call successors, (1105) [2023-04-02 05:11:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6602 states to 6602 states and 9479 transitions. [2023-04-02 05:11:22,393 INFO L78 Accepts]: Start accepts. Automaton has 6602 states and 9479 transitions. Word has length 129 [2023-04-02 05:11:22,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:22,394 INFO L495 AbstractCegarLoop]: Abstraction has 6602 states and 9479 transitions. [2023-04-02 05:11:22,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:11:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6602 states and 9479 transitions. [2023-04-02 05:11:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 05:11:22,397 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:22,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:22,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:11:22,398 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:22,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:22,398 INFO L85 PathProgramCache]: Analyzing trace with hash -32852468, now seen corresponding path program 1 times [2023-04-02 05:11:22,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:22,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711897130] [2023-04-02 05:11:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:22,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:11:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:11:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:11:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:11:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 05:11:23,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711897130] [2023-04-02 05:11:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711897130] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:23,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:23,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:11:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554442008] [2023-04-02 05:11:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:11:23,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:11:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:11:23,066 INFO L87 Difference]: Start difference. First operand 6602 states and 9479 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:11:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:29,664 INFO L93 Difference]: Finished difference Result 16017 states and 22959 transitions. [2023-04-02 05:11:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-04-02 05:11:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2023-04-02 05:11:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:29,709 INFO L225 Difference]: With dead ends: 16017 [2023-04-02 05:11:29,709 INFO L226 Difference]: Without dead ends: 11190 [2023-04-02 05:11:29,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4434 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1895, Invalid=10315, Unknown=0, NotChecked=0, Total=12210 [2023-04-02 05:11:29,728 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 2913 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2928 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:29,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2928 Valid, 220 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 3436 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 05:11:29,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2023-04-02 05:11:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 9286. [2023-04-02 05:11:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9286 states, 7436 states have (on average 1.482248520710059) internal successors, (11022), 7605 states have internal predecessors, (11022), 841 states have call successors, (841), 841 states have call predecessors, (841), 1008 states have return successors, (1527), 839 states have call predecessors, (1527), 840 states have call successors, (1527) [2023-04-02 05:11:30,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9286 states to 9286 states and 13390 transitions. [2023-04-02 05:11:30,916 INFO L78 Accepts]: Start accepts. Automaton has 9286 states and 13390 transitions. Word has length 129 [2023-04-02 05:11:30,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:30,917 INFO L495 AbstractCegarLoop]: Abstraction has 9286 states and 13390 transitions. [2023-04-02 05:11:30,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:11:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9286 states and 13390 transitions. [2023-04-02 05:11:30,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:11:30,920 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:30,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:30,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:11:30,921 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:30,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash 696646655, now seen corresponding path program 1 times [2023-04-02 05:11:30,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735969468] [2023-04-02 05:11:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:11:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:11:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:11:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:11:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 05:11:31,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735969468] [2023-04-02 05:11:31,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735969468] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:11:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846301246] [2023-04-02 05:11:31,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:31,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:11:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:31,258 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 05:11:31,281 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 05:11:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:31,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:11:31,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:11:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:31,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:11:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 05:11:31,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846301246] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:11:31,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:11:31,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:11:31,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436448012] [2023-04-02 05:11:31,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:11:31,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:11:31,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:11:31,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:11:31,975 INFO L87 Difference]: Start difference. First operand 9286 states and 13390 transitions. Second operand has 20 states, 19 states have (on average 8.368421052631579) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:36,006 INFO L93 Difference]: Finished difference Result 23454 states and 33510 transitions. [2023-04-02 05:11:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:11:36,007 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.368421052631579) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 130 [2023-04-02 05:11:36,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:36,064 INFO L225 Difference]: With dead ends: 23454 [2023-04-02 05:11:36,064 INFO L226 Difference]: Without dead ends: 14240 [2023-04-02 05:11:36,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=583, Invalid=2069, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 05:11:36,085 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1762 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:36,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 109 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:11:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14240 states. [2023-04-02 05:11:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14240 to 12560. [2023-04-02 05:11:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12560 states, 9924 states have (on average 1.4464933494558645) internal successors, (14355), 10189 states have internal predecessors, (14355), 1186 states have call successors, (1186), 1186 states have call predecessors, (1186), 1449 states have return successors, (2156), 1184 states have call predecessors, (2156), 1185 states have call successors, (2156) [2023-04-02 05:11:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12560 states to 12560 states and 17697 transitions. [2023-04-02 05:11:37,589 INFO L78 Accepts]: Start accepts. Automaton has 12560 states and 17697 transitions. Word has length 130 [2023-04-02 05:11:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:37,590 INFO L495 AbstractCegarLoop]: Abstraction has 12560 states and 17697 transitions. [2023-04-02 05:11:37,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.368421052631579) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 12560 states and 17697 transitions. [2023-04-02 05:11:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:11:37,593 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:37,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:37,602 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 05:11:37,800 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,SelfDestructingSolverStorable12 [2023-04-02 05:11:37,800 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:37,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2087702210, now seen corresponding path program 1 times [2023-04-02 05:11:37,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:37,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843045593] [2023-04-02 05:11:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:11:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:11:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:11:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:11:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 05:11:38,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843045593] [2023-04-02 05:11:38,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843045593] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:11:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101179178] [2023-04-02 05:11:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:38,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:11:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:38,117 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 05:11:38,141 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 05:11:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:38,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:11:38,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:11:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:38,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:11:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 05:11:38,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101179178] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:11:38,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:11:38,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:11:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401707466] [2023-04-02 05:11:38,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:11:38,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:11:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:38,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:11:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:11:38,694 INFO L87 Difference]: Start difference. First operand 12560 states and 17697 transitions. Second operand has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 14 states have internal predecessors, (162), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:43,413 INFO L93 Difference]: Finished difference Result 37004 states and 51986 transitions. [2023-04-02 05:11:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:11:43,414 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 14 states have internal predecessors, (162), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 130 [2023-04-02 05:11:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:43,502 INFO L225 Difference]: With dead ends: 37004 [2023-04-02 05:11:43,503 INFO L226 Difference]: Without dead ends: 24599 [2023-04-02 05:11:43,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=580, Invalid=2072, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 05:11:43,537 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1775 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:43,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 111 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:11:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24599 states. [2023-04-02 05:11:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24599 to 22377. [2023-04-02 05:11:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22377 states, 17329 states have (on average 1.4053321022563332) internal successors, (24353), 17776 states have internal predecessors, (24353), 2301 states have call successors, (2301), 2301 states have call predecessors, (2301), 2746 states have return successors, (4371), 2299 states have call predecessors, (4371), 2300 states have call successors, (4371) [2023-04-02 05:11:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22377 states to 22377 states and 31025 transitions. [2023-04-02 05:11:45,884 INFO L78 Accepts]: Start accepts. Automaton has 22377 states and 31025 transitions. Word has length 130 [2023-04-02 05:11:45,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:45,884 INFO L495 AbstractCegarLoop]: Abstraction has 22377 states and 31025 transitions. [2023-04-02 05:11:45,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 14 states have internal predecessors, (162), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:45,885 INFO L276 IsEmpty]: Start isEmpty. Operand 22377 states and 31025 transitions. [2023-04-02 05:11:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:11:45,888 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:45,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:45,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-02 05:11:46,096 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,SelfDestructingSolverStorable13 [2023-04-02 05:11:46,096 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:46,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:46,097 INFO L85 PathProgramCache]: Analyzing trace with hash -300559137, now seen corresponding path program 1 times [2023-04-02 05:11:46,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:46,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273923479] [2023-04-02 05:11:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:46,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:11:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:11:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:11:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:11:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:11:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:11:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:11:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:11:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:11:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:11:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:11:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 05:11:46,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273923479] [2023-04-02 05:11:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273923479] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:11:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956312447] [2023-04-02 05:11:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:11:46,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:46,385 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 05:11:46,388 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 05:11:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:11:46,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:11:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:46,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:11:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-02 05:11:46,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956312447] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:11:46,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:11:46,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:11:46,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399012422] [2023-04-02 05:11:46,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:11:46,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:11:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:11:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:11:46,951 INFO L87 Difference]: Start difference. First operand 22377 states and 31025 transitions. Second operand has 20 states, 19 states have (on average 8.68421052631579) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:53,885 INFO L93 Difference]: Finished difference Result 66829 states and 92650 transitions. [2023-04-02 05:11:53,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:11:53,885 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.68421052631579) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 130 [2023-04-02 05:11:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:54,072 INFO L225 Difference]: With dead ends: 66829 [2023-04-02 05:11:54,073 INFO L226 Difference]: Without dead ends: 44675 [2023-04-02 05:11:54,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=577, Invalid=2075, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 05:11:54,131 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1399 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:54,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 137 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:11:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44675 states. [2023-04-02 05:11:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44675 to 40599. [2023-04-02 05:11:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40599 states, 30669 states have (on average 1.354462160487789) internal successors, (41540), 31486 states have internal predecessors, (41540), 4557 states have call successors, (4557), 4557 states have call predecessors, (4557), 5372 states have return successors, (9058), 4555 states have call predecessors, (9058), 4556 states have call successors, (9058) [2023-04-02 05:11:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40599 states to 40599 states and 55155 transitions. [2023-04-02 05:11:59,415 INFO L78 Accepts]: Start accepts. Automaton has 40599 states and 55155 transitions. Word has length 130 [2023-04-02 05:11:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:59,417 INFO L495 AbstractCegarLoop]: Abstraction has 40599 states and 55155 transitions. [2023-04-02 05:11:59,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.68421052631579) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:11:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 40599 states and 55155 transitions. [2023-04-02 05:11:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:11:59,424 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:59,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:59,433 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 05:11:59,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:11:59,631 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:59,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:59,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1098945630, now seen corresponding path program 1 times [2023-04-02 05:11:59,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:59,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774936368] [2023-04-02 05:11:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:59,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:12:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:12:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:12:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:12:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:12:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:12:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:12:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:12:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:12:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 05:12:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 05:12:00,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774936368] [2023-04-02 05:12:00,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774936368] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191071217] [2023-04-02 05:12:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:00,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:00,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:00,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:12:00,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 05:12:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:00,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 05:12:00,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 05:12:01,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:12:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 05:12:01,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191071217] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:12:01,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:12:01,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 7] total 31 [2023-04-02 05:12:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401514284] [2023-04-02 05:12:01,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:12:01,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-04-02 05:12:01,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:01,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-04-02 05:12:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:12:01,484 INFO L87 Difference]: Start difference. First operand 40599 states and 55155 transitions. Second operand has 31 states, 30 states have (on average 8.066666666666666) internal successors, (242), 25 states have internal predecessors, (242), 13 states have call successors, (42), 13 states have call predecessors, (42), 15 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) [2023-04-02 05:13:11,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:11,029 INFO L93 Difference]: Finished difference Result 424182 states and 590433 transitions. [2023-04-02 05:13:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 278 states. [2023-04-02 05:13:11,030 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 8.066666666666666) internal successors, (242), 25 states have internal predecessors, (242), 13 states have call successors, (42), 13 states have call predecessors, (42), 15 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) Word has length 130 [2023-04-02 05:13:11,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:13,054 INFO L225 Difference]: With dead ends: 424182 [2023-04-02 05:13:13,055 INFO L226 Difference]: Without dead ends: 383890 [2023-04-02 05:13:13,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39158 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=9099, Invalid=84231, Unknown=0, NotChecked=0, Total=93330 [2023-04-02 05:13:13,458 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 14340 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 6339 mSolverCounterSat, 1829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14340 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 8168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1829 IncrementalHoareTripleChecker+Valid, 6339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:13,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14340 Valid, 261 Invalid, 8168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1829 Valid, 6339 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 05:13:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383890 states. [2023-04-02 05:13:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383890 to 347331. [2023-04-02 05:13:57,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347331 states, 261986 states have (on average 1.3468467780721107) internal successors, (352855), 273678 states have internal predecessors, (352855), 37504 states have call successors, (37504), 36150 states have call predecessors, (37504), 47840 states have return successors, (84653), 37502 states have call predecessors, (84653), 37503 states have call successors, (84653)