/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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:28:45,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:28:45,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:28:45,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:28:45,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:28:45,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:28:45,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:28:45,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:28:45,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:28:45,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:28:45,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:28:45,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:28:45,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:28:45,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:28:45,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:28:45,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:28:45,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:28:45,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:28:45,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:28:45,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:28:45,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:28:45,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:28:45,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:28:45,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:28:45,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:28:45,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:28:45,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:28:45,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:28:45,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:28:45,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:28:45,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:28:45,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:28:45,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:28:45,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:28:45,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:28:45,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:28:45,105 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 05:28:45,134 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:28:45,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:28:45,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:28:45,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:28:45,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:28:45,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:28:45,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:28:45,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:28:45,135 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:28:45,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:28:45,136 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:28:45,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:28:45,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:28:45,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:28:45,138 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:28:45,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:28:45,138 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:28:45,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:28:45,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:28:45,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:28:45,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:28:45,323 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:28:45,324 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:28:45,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-04-02 05:28:46,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:28:46,534 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:28:46,535 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-04-02 05:28:46,552 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03a319932/b46698c4c7254865905d94d8b30f0987/FLAGcf7bae940 [2023-04-02 05:28:46,563 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03a319932/b46698c4c7254865905d94d8b30f0987 [2023-04-02 05:28:46,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:28:46,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:28:46,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:28:46,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:28:46,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:28:46,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:28:46" (1/1) ... [2023-04-02 05:28:46,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74541c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:46, skipping insertion in model container [2023-04-02 05:28:46,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:28:46" (1/1) ... [2023-04-02 05:28:46,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:28:46,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:28:46,929 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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c[65471,65484] [2023-04-02 05:28:46,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:28:46,945 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:28:47,047 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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c[65471,65484] [2023-04-02 05:28:47,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:28:47,063 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:28:47,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47 WrapperNode [2023-04-02 05:28:47,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:28:47,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:28:47,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:28:47,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:28:47,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:28:47,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:28:47,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:28:47,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:28:47,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (1/1) ... [2023-04-02 05:28:47,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:28:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:28:47,246 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 05:28:47,266 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 05:28:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:28:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:28:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:28:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:28:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:28:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:28:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:28:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:28:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:28:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:28:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:28:47,422 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:28:47,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:28:48,569 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:28:48,579 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:28:48,580 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:28:48,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:28:48 BoogieIcfgContainer [2023-04-02 05:28:48,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:28:48,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:28:48,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:28:48,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:28:48,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:28:46" (1/3) ... [2023-04-02 05:28:48,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b189607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:28:48, skipping insertion in model container [2023-04-02 05:28:48,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:28:47" (2/3) ... [2023-04-02 05:28:48,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b189607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:28:48, skipping insertion in model container [2023-04-02 05:28:48,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:28:48" (3/3) ... [2023-04-02 05:28:48,589 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-04-02 05:28:48,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:28:48,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:28:48,693 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:28:48,698 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;@d8a81d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:28:48,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:28:48,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:28:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:28:48,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:28:48,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:48,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:28:48,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:28:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash -625154658, now seen corresponding path program 1 times [2023-04-02 05:28:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:28:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016388963] [2023-04-02 05:28:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:28:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:28:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:28:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:49,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:28:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:49,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:28:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:49,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:28:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:28:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:28:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:28:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:28:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:28:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,194 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 05:28:50,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:28:50,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016388963] [2023-04-02 05:28:50,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016388963] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:28:50,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:28:50,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:28:50,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827508122] [2023-04-02 05:28:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:28:50,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:28:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:28:50,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:28:50,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:28:50,239 INFO L87 Difference]: Start difference. First operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:28:55,010 INFO L93 Difference]: Finished difference Result 941 states and 1690 transitions. [2023-04-02 05:28:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:28:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 187 [2023-04-02 05:28:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:28:55,038 INFO L225 Difference]: With dead ends: 941 [2023-04-02 05:28:55,038 INFO L226 Difference]: Without dead ends: 763 [2023-04-02 05:28:55,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:28:55,043 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5448 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5448 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:28:55,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5448 Valid, 89 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 05:28:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-04-02 05:28:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 728. [2023-04-02 05:28:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.8498583569405098) internal successors, (1306), 706 states have internal predecessors, (1306), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:28:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1327 transitions. [2023-04-02 05:28:55,332 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1327 transitions. Word has length 187 [2023-04-02 05:28:55,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:28:55,334 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1327 transitions. [2023-04-02 05:28:55,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1327 transitions. [2023-04-02 05:28:55,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:28:55,339 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:28:55,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:28:55,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:28:55,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:28:55,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:28:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash 913185372, now seen corresponding path program 1 times [2023-04-02 05:28:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:28:55,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927392353] [2023-04-02 05:28:55,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:28:55,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:28:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:28:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:28:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:28:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:28:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:28:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:28:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:28:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:28:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:28:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:56,838 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 05:28:56,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:28:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927392353] [2023-04-02 05:28:56,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927392353] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:28:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:28:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:28:56,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212086782] [2023-04-02 05:28:56,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:28:56,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:28:56,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:28:56,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:28:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:28:56,842 INFO L87 Difference]: Start difference. First operand 728 states and 1327 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:05,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:05,295 INFO L93 Difference]: Finished difference Result 945 states and 1696 transitions. [2023-04-02 05:29:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:29:05,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 187 [2023-04-02 05:29:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:05,302 INFO L225 Difference]: With dead ends: 945 [2023-04-02 05:29:05,302 INFO L226 Difference]: Without dead ends: 774 [2023-04-02 05:29:05,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:29:05,310 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7771 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9368 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7778 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 9541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 9368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:05,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7778 Valid, 135 Invalid, 9541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [173 Valid, 9368 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 05:29:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-04-02 05:29:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 728. [2023-04-02 05:29:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.7577903682719547) internal successors, (1241), 706 states have internal predecessors, (1241), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:29:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1262 transitions. [2023-04-02 05:29:05,519 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1262 transitions. Word has length 187 [2023-04-02 05:29:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:05,520 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1262 transitions. [2023-04-02 05:29:05,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1262 transitions. [2023-04-02 05:29:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-04-02 05:29:05,523 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:05,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:29:05,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:05,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1978499002, now seen corresponding path program 1 times [2023-04-02 05:29:05,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328850685] [2023-04-02 05:29:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:29:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:29:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:29:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:29:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:29:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:06,535 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 05:29:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328850685] [2023-04-02 05:29:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328850685] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:06,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:06,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380894929] [2023-04-02 05:29:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:06,540 INFO L87 Difference]: Start difference. First operand 728 states and 1262 transitions. Second operand has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:13,930 INFO L93 Difference]: Finished difference Result 1125 states and 1942 transitions. [2023-04-02 05:29:13,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:13,931 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 251 [2023-04-02 05:29:13,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:13,936 INFO L225 Difference]: With dead ends: 1125 [2023-04-02 05:29:13,936 INFO L226 Difference]: Without dead ends: 960 [2023-04-02 05:29:13,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:13,937 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 10667 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10673 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:13,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10673 Valid, 76 Invalid, 4079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 3948 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:29:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-04-02 05:29:14,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 882. [2023-04-02 05:29:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 845 states have (on average 1.7491124260355029) internal successors, (1478), 846 states have internal predecessors, (1478), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-04-02 05:29:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1515 transitions. [2023-04-02 05:29:14,163 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1515 transitions. Word has length 251 [2023-04-02 05:29:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1515 transitions. [2023-04-02 05:29:14,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1515 transitions. [2023-04-02 05:29:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-04-02 05:29:14,167 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:14,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:14,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:29:14,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:14,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:14,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1101058732, now seen corresponding path program 1 times [2023-04-02 05:29:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329657634] [2023-04-02 05:29:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:14,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-04-02 05:29:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:29:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-04-02 05:29:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 05:29:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:15,133 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 05:29:15,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:15,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329657634] [2023-04-02 05:29:15,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329657634] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:15,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:15,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:15,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834923786] [2023-04-02 05:29:15,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:15,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:15,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:15,135 INFO L87 Difference]: Start difference. First operand 882 states and 1515 transitions. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:22,505 INFO L93 Difference]: Finished difference Result 1646 states and 2809 transitions. [2023-04-02 05:29:22,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:22,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 255 [2023-04-02 05:29:22,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:22,510 INFO L225 Difference]: With dead ends: 1646 [2023-04-02 05:29:22,510 INFO L226 Difference]: Without dead ends: 1327 [2023-04-02 05:29:22,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:22,518 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3157 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4195 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:22,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 81 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4195 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:29:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2023-04-02 05:29:22,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1179. [2023-04-02 05:29:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 1111 states have (on average 1.7416741674167417) internal successors, (1935), 1115 states have internal predecessors, (1935), 32 states have call successors, (32), 32 states have call predecessors, (32), 35 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2023-04-02 05:29:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2006 transitions. [2023-04-02 05:29:22,781 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2006 transitions. Word has length 255 [2023-04-02 05:29:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:22,781 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2006 transitions. [2023-04-02 05:29:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2006 transitions. [2023-04-02 05:29:22,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-04-02 05:29:22,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:22,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:22,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:29:22,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:22,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:22,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1818698298, now seen corresponding path program 1 times [2023-04-02 05:29:22,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:22,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386661036] [2023-04-02 05:29:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:29:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-04-02 05:29:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:29:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:29:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:23,644 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 05:29:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386661036] [2023-04-02 05:29:23,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386661036] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:23,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:23,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640805279] [2023-04-02 05:29:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:23,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:23,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:23,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:23,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:23,646 INFO L87 Difference]: Start difference. First operand 1179 states and 2006 transitions. Second operand has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:30,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:30,529 INFO L93 Difference]: Finished difference Result 2663 states and 4512 transitions. [2023-04-02 05:29:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:30,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 259 [2023-04-02 05:29:30,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:30,536 INFO L225 Difference]: With dead ends: 2663 [2023-04-02 05:29:30,537 INFO L226 Difference]: Without dead ends: 2047 [2023-04-02 05:29:30,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:30,539 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4695 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:30,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 75 Invalid, 4138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:29:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-04-02 05:29:30,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1753. [2023-04-02 05:29:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1621 states have (on average 1.730413325107958) internal successors, (2805), 1633 states have internal predecessors, (2805), 60 states have call successors, (60), 60 states have call predecessors, (60), 71 states have return successors, (83), 59 states have call predecessors, (83), 59 states have call successors, (83) [2023-04-02 05:29:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2948 transitions. [2023-04-02 05:29:30,852 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2948 transitions. Word has length 259 [2023-04-02 05:29:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:30,853 INFO L495 AbstractCegarLoop]: Abstraction has 1753 states and 2948 transitions. [2023-04-02 05:29:30,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2948 transitions. [2023-04-02 05:29:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-04-02 05:29:30,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:30,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:29:30,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:30,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1205231444, now seen corresponding path program 1 times [2023-04-02 05:29:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:30,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239559936] [2023-04-02 05:29:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:29:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:29:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 05:29:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-04-02 05:29:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:31,693 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 05:29:31,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:31,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239559936] [2023-04-02 05:29:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239559936] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:31,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:31,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:31,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767737131] [2023-04-02 05:29:31,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:31,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:31,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:31,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:31,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:31,695 INFO L87 Difference]: Start difference. First operand 1753 states and 2948 transitions. Second operand has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:38,891 INFO L93 Difference]: Finished difference Result 4637 states and 7798 transitions. [2023-04-02 05:29:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 263 [2023-04-02 05:29:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:38,903 INFO L225 Difference]: With dead ends: 4637 [2023-04-02 05:29:38,904 INFO L226 Difference]: Without dead ends: 3447 [2023-04-02 05:29:38,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:38,907 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5561 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4100 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5564 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 4152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:38,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5564 Valid, 80 Invalid, 4152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4100 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 05:29:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2023-04-02 05:29:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2861. [2023-04-02 05:29:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2597 states have (on average 1.7162110127069696) internal successors, (4457), 2629 states have internal predecessors, (4457), 116 states have call successors, (116), 116 states have call predecessors, (116), 147 states have return successors, (179), 115 states have call predecessors, (179), 115 states have call successors, (179) [2023-04-02 05:29:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4752 transitions. [2023-04-02 05:29:39,430 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4752 transitions. Word has length 263 [2023-04-02 05:29:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:39,430 INFO L495 AbstractCegarLoop]: Abstraction has 2861 states and 4752 transitions. [2023-04-02 05:29:39,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4752 transitions. [2023-04-02 05:29:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-04-02 05:29:39,435 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:39,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:39,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:29:39,435 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:39,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 257225914, now seen corresponding path program 1 times [2023-04-02 05:29:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:39,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248381304] [2023-04-02 05:29:39,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:39,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:29:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:29:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:29:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 05:29:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:40,251 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 05:29:40,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:40,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248381304] [2023-04-02 05:29:40,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248381304] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:40,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:40,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199065263] [2023-04-02 05:29:40,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:40,253 INFO L87 Difference]: Start difference. First operand 2861 states and 4752 transitions. Second operand has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:47,698 INFO L93 Difference]: Finished difference Result 8465 states and 14130 transitions. [2023-04-02 05:29:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:47,698 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 267 [2023-04-02 05:29:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:47,747 INFO L225 Difference]: With dead ends: 8465 [2023-04-02 05:29:47,747 INFO L226 Difference]: Without dead ends: 6167 [2023-04-02 05:29:47,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:47,769 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9499 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3987 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9501 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:47,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9501 Valid, 75 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3987 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:29:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6167 states. [2023-04-02 05:29:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6167 to 4997. [2023-04-02 05:29:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4997 states, 4461 states have (on average 1.7002914144810581) internal successors, (7585), 4541 states have internal predecessors, (7585), 228 states have call successors, (228), 228 states have call predecessors, (228), 307 states have return successors, (387), 227 states have call predecessors, (387), 227 states have call successors, (387) [2023-04-02 05:29:48,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 8200 transitions. [2023-04-02 05:29:48,775 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 8200 transitions. Word has length 267 [2023-04-02 05:29:48,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:48,776 INFO L495 AbstractCegarLoop]: Abstraction has 4997 states and 8200 transitions. [2023-04-02 05:29:48,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 8200 transitions. [2023-04-02 05:29:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-04-02 05:29:48,782 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:48,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:48,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:29:48,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:48,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1135620908, now seen corresponding path program 1 times [2023-04-02 05:29:48,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:48,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930836208] [2023-04-02 05:29:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:48,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:29:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:29:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:29:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-04-02 05:29:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:50,373 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 05:29:50,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:50,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930836208] [2023-04-02 05:29:50,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930836208] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:50,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:50,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:29:50,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589030606] [2023-04-02 05:29:50,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:50,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:29:50,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:50,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:29:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:29:50,374 INFO L87 Difference]: Start difference. First operand 4997 states and 8200 transitions. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:25,673 INFO L93 Difference]: Finished difference Result 50160 states and 84981 transitions. [2023-04-02 05:30:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:30:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 271 [2023-04-02 05:30:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:25,798 INFO L225 Difference]: With dead ends: 50160 [2023-04-02 05:30:25,799 INFO L226 Difference]: Without dead ends: 45726 [2023-04-02 05:30:25,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6467 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:30:25,820 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 17368 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 17757 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17381 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 18114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 17757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:25,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17381 Valid, 406 Invalid, 18114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [357 Valid, 17757 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2023-04-02 05:30:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45726 states. [2023-04-02 05:30:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45726 to 36290. [2023-04-02 05:30:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36290 states, 31995 states have (on average 1.6914830442256603) internal successors, (54119), 32698 states have internal predecessors, (54119), 1796 states have call successors, (1796), 1796 states have call predecessors, (1796), 2498 states have return successors, (4291), 1795 states have call predecessors, (4291), 1795 states have call successors, (4291) [2023-04-02 05:30:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36290 states to 36290 states and 60206 transitions. [2023-04-02 05:30:30,107 INFO L78 Accepts]: Start accepts. Automaton has 36290 states and 60206 transitions. Word has length 271 [2023-04-02 05:30:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:30,108 INFO L495 AbstractCegarLoop]: Abstraction has 36290 states and 60206 transitions. [2023-04-02 05:30:30,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 36290 states and 60206 transitions. [2023-04-02 05:30:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-04-02 05:30:30,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:30,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:30,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:30:30,119 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:30,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash 829673408, now seen corresponding path program 1 times [2023-04-02 05:30:30,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:30,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043981251] [2023-04-02 05:30:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:30,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:30,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:30:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:30:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:30:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:30:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-04-02 05:30:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:31,143 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 05:30:31,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:31,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043981251] [2023-04-02 05:30:31,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043981251] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:31,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:31,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:30:31,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379964735] [2023-04-02 05:30:31,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:31,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:30:31,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:31,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:30:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:30:31,145 INFO L87 Difference]: Start difference. First operand 36290 states and 60206 transitions. Second operand has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:49,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:49,821 INFO L93 Difference]: Finished difference Result 126590 states and 213903 transitions. [2023-04-02 05:30:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:30:49,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 272 [2023-04-02 05:30:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:50,184 INFO L225 Difference]: With dead ends: 126590 [2023-04-02 05:30:50,185 INFO L226 Difference]: Without dead ends: 90863 [2023-04-02 05:30:50,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:30:50,262 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 6669 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 6569 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6681 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 6672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 6569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:50,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6681 Valid, 145 Invalid, 6672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 6569 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 05:30:50,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90863 states. [2023-04-02 05:30:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90863 to 72367. [2023-04-02 05:30:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72367 states, 63737 states have (on average 1.6882658424463028) internal successors, (107605), 65191 states have internal predecessors, (107605), 3588 states have call successors, (3588), 3588 states have call predecessors, (3588), 5041 states have return successors, (8939), 3587 states have call predecessors, (8939), 3587 states have call successors, (8939) [2023-04-02 05:30:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72367 states to 72367 states and 120132 transitions. [2023-04-02 05:30:58,413 INFO L78 Accepts]: Start accepts. Automaton has 72367 states and 120132 transitions. Word has length 272 [2023-04-02 05:30:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:58,414 INFO L495 AbstractCegarLoop]: Abstraction has 72367 states and 120132 transitions. [2023-04-02 05:30:58,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:58,414 INFO L276 IsEmpty]: Start isEmpty. Operand 72367 states and 120132 transitions. [2023-04-02 05:30:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-04-02 05:30:58,429 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:58,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:58,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:30:58,430 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:58,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1514760424, now seen corresponding path program 1 times [2023-04-02 05:30:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617603320] [2023-04-02 05:30:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:59,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:31:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:31:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-04-02 05:31:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 05:31:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:31:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:31:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-04-02 05:31:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,310 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 05:31:00,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:00,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617603320] [2023-04-02 05:31:00,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617603320] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:00,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:00,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:31:00,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890940331] [2023-04-02 05:31:00,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:00,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:31:00,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:31:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:31:00,313 INFO L87 Difference]: Start difference. First operand 72367 states and 120132 transitions. Second operand has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:31:53,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:31:53,183 INFO L93 Difference]: Finished difference Result 169016 states and 286757 transitions. [2023-04-02 05:31:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-04-02 05:31:53,184 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 273 [2023-04-02 05:31:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:31:53,785 INFO L225 Difference]: With dead ends: 169016 [2023-04-02 05:31:53,785 INFO L226 Difference]: Without dead ends: 143501 [2023-04-02 05:31:53,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13097 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=4297, Invalid=28645, Unknown=0, NotChecked=0, Total=32942 [2023-04-02 05:31:53,868 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 12736 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 21944 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12758 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 22242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 21944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:31:53,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12758 Valid, 557 Invalid, 22242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [298 Valid, 21944 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2023-04-02 05:31:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143501 states. [2023-04-02 05:32:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143501 to 104408. [2023-04-02 05:32:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104408 states, 92100 states have (on average 1.6928555917480999) internal successors, (155912), 94146 states have internal predecessors, (155912), 5131 states have call successors, (5131), 5131 states have call predecessors, (5131), 7176 states have return successors, (12657), 5130 states have call predecessors, (12657), 5130 states have call successors, (12657) [2023-04-02 05:32:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104408 states to 104408 states and 173700 transitions. [2023-04-02 05:32:06,685 INFO L78 Accepts]: Start accepts. Automaton has 104408 states and 173700 transitions. Word has length 273 [2023-04-02 05:32:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:32:06,686 INFO L495 AbstractCegarLoop]: Abstraction has 104408 states and 173700 transitions. [2023-04-02 05:32:06,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:32:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 104408 states and 173700 transitions. [2023-04-02 05:32:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-04-02 05:32:06,706 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:32:06,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:32:06,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:32:06,706 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:32:06,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:32:06,707 INFO L85 PathProgramCache]: Analyzing trace with hash -797664850, now seen corresponding path program 1 times [2023-04-02 05:32:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:32:06,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546256799] [2023-04-02 05:32:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:32:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:32:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:32:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:32:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:32:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:32:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:32:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 05:32:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:32:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:32:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-04-02 05:32:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:32:08,470 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 05:32:08,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:32:08,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546256799] [2023-04-02 05:32:08,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546256799] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:32:08,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:32:08,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:32:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753672948] [2023-04-02 05:32:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:32:08,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:32:08,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:32:08,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:32:08,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:32:08,472 INFO L87 Difference]: Start difference. First operand 104408 states and 173700 transitions. Second operand has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9)