/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/systemc/token_ring.05.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:24:20,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:24:20,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:24:20,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:24:20,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:24:20,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:24:20,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:24:20,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:24:20,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:24:20,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:24:20,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:24:20,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:24:20,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:24:20,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:24:20,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:24:20,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:24:20,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:24:20,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:24:20,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:24:20,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:24:20,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:24:20,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:24:20,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:24:20,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:24:20,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:24:20,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:24:20,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:24:20,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:24:20,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:24:20,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:24:20,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:24:20,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:24:20,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:24:20,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:24:20,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:24:20,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:24:20,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:24:20,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:24:20,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:24:20,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:24:20,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:24:20,437 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 [2023-03-31 01:24:20,463 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:24:20,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:24:20,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:24:20,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:24:20,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:24:20,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:24:20,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:24:20,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:24:20,465 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:24:20,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:24:20,466 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:24:20,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:24:20,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:24:20,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:24:20,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:24:20,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:24:20,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:24:20,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:24:20,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:24:20,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:24:20,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:24:20,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:24:20,469 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:24:20,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:24:20,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:24:20,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:24:20,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:24:20,674 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:24:20,674 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:24:20,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.05.cil-1.c [2023-03-31 01:24:21,950 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:24:22,183 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:24:22,183 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.05.cil-1.c [2023-03-31 01:24:22,190 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9980bf305/3364df2040fc4e44b543ee5d1b70edac/FLAGf83a5c64d [2023-03-31 01:24:22,203 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9980bf305/3364df2040fc4e44b543ee5d1b70edac [2023-03-31 01:24:22,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:24:22,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:24:22,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:24:22,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:24:22,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:24:22,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4727e8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22, skipping insertion in model container [2023-03-31 01:24:22,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:24:22,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:24:22,371 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/systemc/token_ring.05.cil-1.c[671,684] [2023-03-31 01:24:22,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:24:22,476 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:24:22,484 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/systemc/token_ring.05.cil-1.c[671,684] [2023-03-31 01:24:22,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:24:22,558 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:24:22,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22 WrapperNode [2023-03-31 01:24:22,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:24:22,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:24:22,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:24:22,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:24:22,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:24:22,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:24:22,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:24:22,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:24:22,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (1/1) ... [2023-03-31 01:24:22,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:24:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:24:22,654 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) [2023-03-31 01:24:22,659 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 [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-03-31 01:24:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-03-31 01:24:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-03-31 01:24:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-03-31 01:24:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-03-31 01:24:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-03-31 01:24:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 01:24:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:24:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:24:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:24:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:24:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:24:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:24:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-03-31 01:24:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 01:24:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:24:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:24:22,762 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:24:22,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:24:23,251 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:24:23,260 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:24:23,260 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-03-31 01:24:23,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:24:23 BoogieIcfgContainer [2023-03-31 01:24:23,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:24:23,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:24:23,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:24:23,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:24:23,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:24:22" (1/3) ... [2023-03-31 01:24:23,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adb55b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:24:23, skipping insertion in model container [2023-03-31 01:24:23,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:22" (2/3) ... [2023-03-31 01:24:23,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adb55b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:24:23, skipping insertion in model container [2023-03-31 01:24:23,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:24:23" (3/3) ... [2023-03-31 01:24:23,270 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-1.c [2023-03-31 01:24:23,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:24:23,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:24:23,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:24:23,354 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;@20532f32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:24:23,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:24:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 264 states, 193 states have (on average 1.5803108808290156) internal successors, (305), 203 states have internal predecessors, (305), 41 states have call successors, (41), 28 states have call predecessors, (41), 28 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-03-31 01:24:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:23,375 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:23,376 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] [2023-03-31 01:24:23,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:23,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:23,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1725563860, now seen corresponding path program 1 times [2023-03-31 01:24:23,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:23,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985711724] [2023-03-31 01:24:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:23,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:24,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985711724] [2023-03-31 01:24:24,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985711724] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:24,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:24,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:24:24,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529798524] [2023-03-31 01:24:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:24,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:24:24,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:24,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:24:24,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:24:24,180 INFO L87 Difference]: Start difference. First operand has 264 states, 193 states have (on average 1.5803108808290156) internal successors, (305), 203 states have internal predecessors, (305), 41 states have call successors, (41), 28 states have call predecessors, (41), 28 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:25,973 INFO L93 Difference]: Finished difference Result 669 states and 1064 transitions. [2023-03-31 01:24:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:24:25,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:25,985 INFO L225 Difference]: With dead ends: 669 [2023-03-31 01:24:25,985 INFO L226 Difference]: Without dead ends: 409 [2023-03-31 01:24:25,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:24:25,990 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1109 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:25,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 31 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:24:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-03-31 01:24:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 255. [2023-03-31 01:24:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 188 states have (on average 1.4946808510638299) internal successors, (281), 196 states have internal predecessors, (281), 41 states have call successors, (41), 28 states have call predecessors, (41), 25 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-03-31 01:24:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 360 transitions. [2023-03-31 01:24:26,078 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 360 transitions. Word has length 133 [2023-03-31 01:24:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:26,078 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 360 transitions. [2023-03-31 01:24:26,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 360 transitions. [2023-03-31 01:24:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:26,081 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:26,081 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] [2023-03-31 01:24:26,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:24:26,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:26,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1392920722, now seen corresponding path program 1 times [2023-03-31 01:24:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:26,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723344176] [2023-03-31 01:24:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:26,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:26,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723344176] [2023-03-31 01:24:26,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723344176] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:26,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:26,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:24:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992328238] [2023-03-31 01:24:26,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:26,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:24:26,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:24:26,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:24:26,380 INFO L87 Difference]: Start difference. First operand 255 states and 360 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:28,741 INFO L93 Difference]: Finished difference Result 998 states and 1498 transitions. [2023-03-31 01:24:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:24:28,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:28,746 INFO L225 Difference]: With dead ends: 998 [2023-03-31 01:24:28,746 INFO L226 Difference]: Without dead ends: 766 [2023-03-31 01:24:28,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:24:28,748 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1810 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:28,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 15 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-03-31 01:24:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-03-31 01:24:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 488. [2023-03-31 01:24:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 371 states have (on average 1.509433962264151) internal successors, (560), 387 states have internal predecessors, (560), 69 states have call successors, (69), 48 states have call predecessors, (69), 47 states have return successors, (70), 67 states have call predecessors, (70), 66 states have call successors, (70) [2023-03-31 01:24:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 699 transitions. [2023-03-31 01:24:28,823 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 699 transitions. Word has length 133 [2023-03-31 01:24:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:28,823 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 699 transitions. [2023-03-31 01:24:28,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:28,823 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 699 transitions. [2023-03-31 01:24:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:28,825 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:28,825 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] [2023-03-31 01:24:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:24:28,825 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:28,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 84875694, now seen corresponding path program 1 times [2023-03-31 01:24:28,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:28,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142310555] [2023-03-31 01:24:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142310555] [2023-03-31 01:24:29,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142310555] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:29,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:29,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:29,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765115655] [2023-03-31 01:24:29,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:29,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:29,131 INFO L87 Difference]: Start difference. First operand 488 states and 699 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:32,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:32,789 INFO L93 Difference]: Finished difference Result 1947 states and 2926 transitions. [2023-03-31 01:24:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:32,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:32,800 INFO L225 Difference]: With dead ends: 1947 [2023-03-31 01:24:32,801 INFO L226 Difference]: Without dead ends: 1482 [2023-03-31 01:24:32,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:32,810 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2082 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:32,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 16 Invalid, 4640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-03-31 01:24:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2023-03-31 01:24:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 969. [2023-03-31 01:24:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 740 states have (on average 1.4972972972972973) internal successors, (1108), 782 states have internal predecessors, (1108), 133 states have call successors, (133), 87 states have call predecessors, (133), 95 states have return successors, (154), 133 states have call predecessors, (154), 130 states have call successors, (154) [2023-03-31 01:24:33,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1395 transitions. [2023-03-31 01:24:33,008 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1395 transitions. Word has length 133 [2023-03-31 01:24:33,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:33,010 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1395 transitions. [2023-03-31 01:24:33,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1395 transitions. [2023-03-31 01:24:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:33,012 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:33,012 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] [2023-03-31 01:24:33,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:24:33,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:33,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash -538405908, now seen corresponding path program 1 times [2023-03-31 01:24:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129543341] [2023-03-31 01:24:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:33,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:33,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129543341] [2023-03-31 01:24:33,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129543341] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:33,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:33,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796135016] [2023-03-31 01:24:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:33,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:33,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:33,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:33,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:33,346 INFO L87 Difference]: Start difference. First operand 969 states and 1395 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:37,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:37,143 INFO L93 Difference]: Finished difference Result 2898 states and 4360 transitions. [2023-03-31 01:24:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:37,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:37,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:37,152 INFO L225 Difference]: With dead ends: 2898 [2023-03-31 01:24:37,152 INFO L226 Difference]: Without dead ends: 2202 [2023-03-31 01:24:37,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:37,161 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2287 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 4146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:37,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2322 Valid, 16 Invalid, 4696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 4146 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-03-31 01:24:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2023-03-31 01:24:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1432. [2023-03-31 01:24:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1103 states have (on average 1.5022665457842248) internal successors, (1657), 1161 states have internal predecessors, (1657), 189 states have call successors, (189), 127 states have call predecessors, (189), 139 states have return successors, (222), 191 states have call predecessors, (222), 186 states have call successors, (222) [2023-03-31 01:24:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2068 transitions. [2023-03-31 01:24:37,402 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2068 transitions. Word has length 133 [2023-03-31 01:24:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:37,402 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2068 transitions. [2023-03-31 01:24:37,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2068 transitions. [2023-03-31 01:24:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:37,404 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:37,404 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] [2023-03-31 01:24:37,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:24:37,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:37,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash -419964434, now seen corresponding path program 1 times [2023-03-31 01:24:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:37,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413697994] [2023-03-31 01:24:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:37,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:37,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:37,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413697994] [2023-03-31 01:24:37,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413697994] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:37,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:37,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:37,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955368167] [2023-03-31 01:24:37,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:37,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:37,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:37,662 INFO L87 Difference]: Start difference. First operand 1432 states and 2068 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:42,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:42,296 INFO L93 Difference]: Finished difference Result 4732 states and 7111 transitions. [2023-03-31 01:24:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:42,311 INFO L225 Difference]: With dead ends: 4732 [2023-03-31 01:24:42,311 INFO L226 Difference]: Without dead ends: 3594 [2023-03-31 01:24:42,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:42,315 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1556 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4815 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 4815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:42,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 17 Invalid, 5169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 4815 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-03-31 01:24:42,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2023-03-31 01:24:42,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 2357. [2023-03-31 01:24:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 1828 states have (on average 1.5049234135667395) internal successors, (2751), 1918 states have internal predecessors, (2751), 301 states have call successors, (301), 207 states have call predecessors, (301), 227 states have return successors, (364), 307 states have call predecessors, (364), 298 states have call successors, (364) [2023-03-31 01:24:42,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 3416 transitions. [2023-03-31 01:24:42,669 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 3416 transitions. Word has length 133 [2023-03-31 01:24:42,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:42,669 INFO L495 AbstractCegarLoop]: Abstraction has 2357 states and 3416 transitions. [2023-03-31 01:24:42,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 3416 transitions. [2023-03-31 01:24:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:42,671 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:42,671 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] [2023-03-31 01:24:42,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:24:42,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:42,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 969329580, now seen corresponding path program 1 times [2023-03-31 01:24:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:42,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636842766] [2023-03-31 01:24:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:42,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636842766] [2023-03-31 01:24:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636842766] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:42,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:42,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:42,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608583781] [2023-03-31 01:24:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:42,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:42,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:42,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:42,918 INFO L87 Difference]: Start difference. First operand 2357 states and 3416 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:47,079 INFO L93 Difference]: Finished difference Result 8394 states and 12631 transitions. [2023-03-31 01:24:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:47,104 INFO L225 Difference]: With dead ends: 8394 [2023-03-31 01:24:47,104 INFO L226 Difference]: Without dead ends: 6368 [2023-03-31 01:24:47,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:47,111 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2507 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:47,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 16 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-03-31 01:24:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6368 states. [2023-03-31 01:24:47,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6368 to 4206. [2023-03-31 01:24:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4206 states, 3277 states have (on average 1.505340250228868) internal successors, (4933), 3431 states have internal predecessors, (4933), 525 states have call successors, (525), 367 states have call predecessors, (525), 403 states have return successors, (666), 539 states have call predecessors, (666), 522 states have call successors, (666) [2023-03-31 01:24:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4206 states to 4206 states and 6124 transitions. [2023-03-31 01:24:47,773 INFO L78 Accepts]: Start accepts. Automaton has 4206 states and 6124 transitions. Word has length 133 [2023-03-31 01:24:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:47,773 INFO L495 AbstractCegarLoop]: Abstraction has 4206 states and 6124 transitions. [2023-03-31 01:24:47,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4206 states and 6124 transitions. [2023-03-31 01:24:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:47,777 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:47,777 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] [2023-03-31 01:24:47,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:24:47,777 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:47,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1064064466, now seen corresponding path program 1 times [2023-03-31 01:24:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:47,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244345565] [2023-03-31 01:24:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244345565] [2023-03-31 01:24:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244345565] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:48,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:48,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592178778] [2023-03-31 01:24:48,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:48,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:48,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:48,035 INFO L87 Difference]: Start difference. First operand 4206 states and 6124 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:54,152 INFO L93 Difference]: Finished difference Result 18960 states and 28634 transitions. [2023-03-31 01:24:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:54,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:24:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:54,224 INFO L225 Difference]: With dead ends: 18960 [2023-03-31 01:24:54,224 INFO L226 Difference]: Without dead ends: 15150 [2023-03-31 01:24:54,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:54,242 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1754 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4362 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 4362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:54,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 17 Invalid, 4792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 4362 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-03-31 01:24:54,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15150 states. [2023-03-31 01:24:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15150 to 11942. [2023-03-31 01:24:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11942 states, 9218 states have (on average 1.4750488175309178) internal successors, (13597), 10003 states have internal predecessors, (13597), 1488 states have call successors, (1488), 942 states have call predecessors, (1488), 1235 states have return successors, (2562), 1502 states have call predecessors, (2562), 1485 states have call successors, (2562) [2023-03-31 01:24:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11942 states to 11942 states and 17647 transitions. [2023-03-31 01:24:56,462 INFO L78 Accepts]: Start accepts. Automaton has 11942 states and 17647 transitions. Word has length 133 [2023-03-31 01:24:56,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:56,462 INFO L495 AbstractCegarLoop]: Abstraction has 11942 states and 17647 transitions. [2023-03-31 01:24:56,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:56,463 INFO L276 IsEmpty]: Start isEmpty. Operand 11942 states and 17647 transitions. [2023-03-31 01:24:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:24:56,468 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:56,468 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] [2023-03-31 01:24:56,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:24:56,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:56,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1364194156, now seen corresponding path program 1 times [2023-03-31 01:24:56,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276985538] [2023-03-31 01:24:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:56,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:56,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:56,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276985538] [2023-03-31 01:24:56,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276985538] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:56,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:56,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:56,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338929040] [2023-03-31 01:24:56,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:56,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:56,732 INFO L87 Difference]: Start difference. First operand 11942 states and 17647 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:25:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:06,707 INFO L93 Difference]: Finished difference Result 49963 states and 76205 transitions. [2023-03-31 01:25:06,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:25:06,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2023-03-31 01:25:06,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:06,872 INFO L225 Difference]: With dead ends: 49963 [2023-03-31 01:25:06,872 INFO L226 Difference]: Without dead ends: 38681 [2023-03-31 01:25:06,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:25:06,929 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2596 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:06,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 16 Invalid, 4409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:25:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38681 states. [2023-03-31 01:25:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38681 to 30600. [2023-03-31 01:25:12,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30600 states, 23682 states have (on average 1.4517354953128958) internal successors, (34380), 25632 states have internal predecessors, (34380), 3635 states have call successors, (3635), 2474 states have call predecessors, (3635), 3282 states have return successors, (7393), 3681 states have call predecessors, (7393), 3632 states have call successors, (7393) [2023-03-31 01:25:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30600 states to 30600 states and 45408 transitions. [2023-03-31 01:25:13,187 INFO L78 Accepts]: Start accepts. Automaton has 30600 states and 45408 transitions. Word has length 133 [2023-03-31 01:25:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:13,187 INFO L495 AbstractCegarLoop]: Abstraction has 30600 states and 45408 transitions. [2023-03-31 01:25:13,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:25:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 30600 states and 45408 transitions. [2023-03-31 01:25:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 01:25:13,198 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:13,198 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] [2023-03-31 01:25:13,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:25:13,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:13,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash 57051758, now seen corresponding path program 1 times [2023-03-31 01:25:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:13,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138979535] [2023-03-31 01:25:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:13,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:25:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:25:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:25:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:25:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:13,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:13,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138979535] [2023-03-31 01:25:13,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138979535] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:13,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:13,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:25:13,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213535472] [2023-03-31 01:25:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:13,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:25:13,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:13,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:25:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:25:13,433 INFO L87 Difference]: Start difference. First operand 30600 states and 45408 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)