/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:12:30,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:12:30,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:12:30,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:12:30,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:12:30,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:12:30,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:12:30,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:12:30,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:12:30,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:12:30,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:12:30,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:12:30,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:12:30,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:12:30,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:12:30,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:12:30,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:12:30,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:12:30,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:12:30,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:12:30,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:12:30,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:12:30,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:12:30,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:12:30,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:12:30,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:12:30,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:12:30,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:12:30,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:12:30,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:12:30,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:12:30,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:12:30,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:12:30,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:12:30,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:12:30,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:12:30,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:12:30,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:12:30,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:12:30,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:12:30,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:12:30,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 06:12:30,407 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:12:30,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:12:30,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:12:30,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:12:30,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:12:30,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:12:30,410 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:12:30,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:12:30,410 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:12:30,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:12:30,411 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:12:30,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:12:30,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:12:30,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:12:30,412 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:12:30,412 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:12:30,412 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:12:30,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:12:30,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:12:30,413 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:12:30,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:12:30,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:12:30,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:12:30,415 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:12:30,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:12:30,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:12:30,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:12:30,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:12:30,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:12:30,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:12:30,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:12:30,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:12:30,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:12:30,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:12:30,687 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:12:30,688 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:12:30,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.15.cil.c [2023-04-01 06:12:31,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:12:32,180 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:12:32,181 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2023-04-01 06:12:32,199 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a775b050/0ddb52af4b4c457fb756b09291314ca8/FLAG1bcfe1414 [2023-04-01 06:12:32,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a775b050/0ddb52af4b4c457fb756b09291314ca8 [2023-04-01 06:12:32,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:12:32,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:12:32,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:12:32,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:12:32,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:12:32,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291268a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32, skipping insertion in model container [2023-04-01 06:12:32,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:12:32,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:12:32,442 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/transmitter.15.cil.c[706,719] [2023-04-01 06:12:32,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:12:32,621 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:12:32,631 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/transmitter.15.cil.c[706,719] [2023-04-01 06:12:32,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:12:32,721 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:12:32,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32 WrapperNode [2023-04-01 06:12:32,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:12:32,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:12:32,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:12:32,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:12:32,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:12:32,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:12:32,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:12:32,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:12:32,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (1/1) ... [2023-04-01 06:12:32,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:12:32,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:12:32,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 06:12:32,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 06:12:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:12:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:12:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:12:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-01 06:12:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-01 06:12:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-01 06:12:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-04-01 06:12:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-04-01 06:12:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-01 06:12:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-01 06:12:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-01 06:12:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-01 06:12:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-01 06:12:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-01 06:12:32,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:12:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:12:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-01 06:12:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-01 06:12:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-04-01 06:12:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-04-01 06:12:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-04-01 06:12:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-04-01 06:12:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-04-01 06:12:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-04-01 06:12:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-04-01 06:12:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-04-01 06:12:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-04-01 06:12:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-04-01 06:12:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-04-01 06:12:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-04-01 06:12:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2023-04-01 06:12:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2023-04-01 06:12:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2023-04-01 06:12:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-01 06:12:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-01 06:12:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-01 06:12:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-01 06:12:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-01 06:12:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:12:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:12:33,118 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:12:33,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:12:33,975 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:12:34,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:12:34,492 INFO L302 CfgBuilder]: Removed 17 assume(true) statements. [2023-04-01 06:12:34,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:12:34 BoogieIcfgContainer [2023-04-01 06:12:34,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:12:34,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:12:34,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:12:34,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:12:34,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:12:32" (1/3) ... [2023-04-01 06:12:34,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234d3d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:12:34, skipping insertion in model container [2023-04-01 06:12:34,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:12:32" (2/3) ... [2023-04-01 06:12:34,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234d3d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:12:34, skipping insertion in model container [2023-04-01 06:12:34,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:12:34" (3/3) ... [2023-04-01 06:12:34,508 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2023-04-01 06:12:34,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:12:34,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:12:34,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:12:34,602 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=FINITE_AUTOMATA, 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;@5c66b81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:12:34,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:12:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 308 states, 198 states have (on average 1.4545454545454546) internal successors, (288), 216 states have internal predecessors, (288), 64 states have call successors, (64), 44 states have call predecessors, (64), 44 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-04-01 06:12:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:34,621 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:34,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:34,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:34,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:34,630 INFO L85 PathProgramCache]: Analyzing trace with hash -27791419, now seen corresponding path program 1 times [2023-04-01 06:12:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:34,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279886139] [2023-04-01 06:12:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:35,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279886139] [2023-04-01 06:12:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279886139] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:35,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:35,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 06:12:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359929288] [2023-04-01 06:12:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:35,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 06:12:35,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:35,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 06:12:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 06:12:35,527 INFO L87 Difference]: Start difference. First operand has 308 states, 198 states have (on average 1.4545454545454546) internal successors, (288), 216 states have internal predecessors, (288), 64 states have call successors, (64), 44 states have call predecessors, (64), 44 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-01 06:12:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:12:36,438 INFO L93 Difference]: Finished difference Result 882 states and 1261 transitions. [2023-04-01 06:12:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 06:12:36,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 137 [2023-04-01 06:12:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:12:36,463 INFO L225 Difference]: With dead ends: 882 [2023-04-01 06:12:36,463 INFO L226 Difference]: Without dead ends: 578 [2023-04-01 06:12:36,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 06:12:36,481 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 742 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 06:12:36,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1071 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 06:12:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-04-01 06:12:36,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 574. [2023-04-01 06:12:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 378 states have (on average 1.4259259259259258) internal successors, (539), 408 states have internal predecessors, (539), 117 states have call successors, (117), 82 states have call predecessors, (117), 78 states have return successors, (115), 113 states have call predecessors, (115), 114 states have call successors, (115) [2023-04-01 06:12:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 771 transitions. [2023-04-01 06:12:36,600 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 771 transitions. Word has length 137 [2023-04-01 06:12:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:12:36,601 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 771 transitions. [2023-04-01 06:12:36,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-01 06:12:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 771 transitions. [2023-04-01 06:12:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:36,610 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:36,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:36,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 06:12:36,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:36,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1422827172, now seen corresponding path program 1 times [2023-04-01 06:12:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733392430] [2023-04-01 06:12:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:37,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733392430] [2023-04-01 06:12:37,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733392430] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:37,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:37,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:12:37,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441591766] [2023-04-01 06:12:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:37,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:12:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:37,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:12:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:12:37,213 INFO L87 Difference]: Start difference. First operand 574 states and 771 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:39,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:12:39,050 INFO L93 Difference]: Finished difference Result 2498 states and 3575 transitions. [2023-04-01 06:12:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:12:39,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 137 [2023-04-01 06:12:39,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:12:39,068 INFO L225 Difference]: With dead ends: 2498 [2023-04-01 06:12:39,068 INFO L226 Difference]: Without dead ends: 1902 [2023-04-01 06:12:39,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:12:39,078 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 2533 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2550 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 882 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 06:12:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2550 Valid, 2330 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [882 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 06:12:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2023-04-01 06:12:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1843. [2023-04-01 06:12:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1255 states have (on average 1.4215139442231075) internal successors, (1784), 1330 states have internal predecessors, (1784), 335 states have call successors, (335), 253 states have call predecessors, (335), 252 states have return successors, (407), 357 states have call predecessors, (407), 331 states have call successors, (407) [2023-04-01 06:12:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2526 transitions. [2023-04-01 06:12:39,265 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2526 transitions. Word has length 137 [2023-04-01 06:12:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:12:39,266 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2526 transitions. [2023-04-01 06:12:39,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:39,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2526 transitions. [2023-04-01 06:12:39,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:39,268 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:39,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:39,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 06:12:39,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:39,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1501078363, now seen corresponding path program 1 times [2023-04-01 06:12:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089793782] [2023-04-01 06:12:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:39,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:39,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:39,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089793782] [2023-04-01 06:12:39,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089793782] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:39,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:39,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:12:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700846150] [2023-04-01 06:12:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:39,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:12:39,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:12:39,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:12:39,704 INFO L87 Difference]: Start difference. First operand 1843 states and 2526 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:12:41,606 INFO L93 Difference]: Finished difference Result 7613 states and 11273 transitions. [2023-04-01 06:12:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:12:41,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 137 [2023-04-01 06:12:41,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:12:41,644 INFO L225 Difference]: With dead ends: 7613 [2023-04-01 06:12:41,645 INFO L226 Difference]: Without dead ends: 5694 [2023-04-01 06:12:41,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:12:41,667 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 2523 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-01 06:12:41,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2542 Valid, 2331 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-01 06:12:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2023-04-01 06:12:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5467. [2023-04-01 06:12:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 3792 states have (on average 1.4298523206751055) internal successors, (5422), 4002 states have internal predecessors, (5422), 918 states have call successors, (918), 737 states have call predecessors, (918), 756 states have return successors, (1346), 1044 states have call predecessors, (1346), 910 states have call successors, (1346) [2023-04-01 06:12:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 7686 transitions. [2023-04-01 06:12:42,155 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 7686 transitions. Word has length 137 [2023-04-01 06:12:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:12:42,155 INFO L495 AbstractCegarLoop]: Abstraction has 5467 states and 7686 transitions. [2023-04-01 06:12:42,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 7686 transitions. [2023-04-01 06:12:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:42,157 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:42,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:42,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 06:12:42,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:42,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1790832068, now seen corresponding path program 1 times [2023-04-01 06:12:42,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:42,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304674732] [2023-04-01 06:12:42,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:42,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:42,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304674732] [2023-04-01 06:12:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304674732] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:42,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:42,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:12:42,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540667087] [2023-04-01 06:12:42,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:42,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:12:42,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:42,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:12:42,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:12:42,512 INFO L87 Difference]: Start difference. First operand 5467 states and 7686 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:12:45,184 INFO L93 Difference]: Finished difference Result 22320 states and 34274 transitions. [2023-04-01 06:12:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:12:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 137 [2023-04-01 06:12:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:12:45,334 INFO L225 Difference]: With dead ends: 22320 [2023-04-01 06:12:45,335 INFO L226 Difference]: Without dead ends: 16630 [2023-04-01 06:12:45,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:12:45,402 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 2506 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 06:12:45,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 2332 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 06:12:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16630 states. [2023-04-01 06:12:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16630 to 15430. [2023-04-01 06:12:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15430 states, 10827 states have (on average 1.439364551584003) internal successors, (15584), 11409 states have internal predecessors, (15584), 2445 states have call successors, (2445), 2048 states have call predecessors, (2445), 2157 states have return successors, (4318), 2933 states have call predecessors, (4318), 2423 states have call successors, (4318) [2023-04-01 06:12:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15430 states to 15430 states and 22347 transitions. [2023-04-01 06:12:46,756 INFO L78 Accepts]: Start accepts. Automaton has 15430 states and 22347 transitions. Word has length 137 [2023-04-01 06:12:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:12:46,757 INFO L495 AbstractCegarLoop]: Abstraction has 15430 states and 22347 transitions. [2023-04-01 06:12:46,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 15430 states and 22347 transitions. [2023-04-01 06:12:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:46,760 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:46,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:46,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 06:12:46,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:46,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1582214877, now seen corresponding path program 1 times [2023-04-01 06:12:46,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971069711] [2023-04-01 06:12:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:46,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:47,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:47,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971069711] [2023-04-01 06:12:47,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971069711] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:47,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:47,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:12:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673705371] [2023-04-01 06:12:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:47,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:12:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:12:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:12:47,304 INFO L87 Difference]: Start difference. First operand 15430 states and 22347 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:12:51,682 INFO L93 Difference]: Finished difference Result 63331 states and 101474 transitions. [2023-04-01 06:12:51,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:12:51,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 137 [2023-04-01 06:12:51,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:12:52,009 INFO L225 Difference]: With dead ends: 63331 [2023-04-01 06:12:52,009 INFO L226 Difference]: Without dead ends: 47287 [2023-04-01 06:12:52,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:12:52,269 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 2497 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 06:12:52,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2527 Valid, 2331 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 06:12:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47287 states. [2023-04-01 06:12:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47287 to 42921. [2023-04-01 06:12:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42921 states, 30374 states have (on average 1.4476196747218015) internal successors, (43970), 31974 states have internal predecessors, (43970), 6488 states have call successors, (6488), 5599 states have call predecessors, (6488), 6058 states have return successors, (13890), 8154 states have call predecessors, (13890), 6420 states have call successors, (13890) [2023-04-01 06:12:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42921 states to 42921 states and 64348 transitions. [2023-04-01 06:12:55,804 INFO L78 Accepts]: Start accepts. Automaton has 42921 states and 64348 transitions. Word has length 137 [2023-04-01 06:12:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:12:55,805 INFO L495 AbstractCegarLoop]: Abstraction has 42921 states and 64348 transitions. [2023-04-01 06:12:55,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:12:55,806 INFO L276 IsEmpty]: Start isEmpty. Operand 42921 states and 64348 transitions. [2023-04-01 06:12:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:12:55,807 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:12:55,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:12:55,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 06:12:55,808 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:12:55,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:12:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1775725220, now seen corresponding path program 1 times [2023-04-01 06:12:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:12:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169651651] [2023-04-01 06:12:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:12:55,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:12:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:12:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:12:56,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:12:56,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169651651] [2023-04-01 06:12:56,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169651651] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:12:56,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:12:56,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:12:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829301970] [2023-04-01 06:12:56,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:12:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:12:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:12:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:12:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:12:56,137 INFO L87 Difference]: Start difference. First operand 42921 states and 64348 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:13:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:13:05,583 INFO L93 Difference]: Finished difference Result 174476 states and 295630 transitions. [2023-04-01 06:13:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:13:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 137 [2023-04-01 06:13:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:13:06,775 INFO L225 Difference]: With dead ends: 174476 [2023-04-01 06:13:06,776 INFO L226 Difference]: Without dead ends: 129890 [2023-04-01 06:13:07,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:13:07,502 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 2412 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 06:13:07,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 2445 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 06:13:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129890 states. [2023-04-01 06:13:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129890 to 116282. [2023-04-01 06:13:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116282 states, 82727 states have (on average 1.4575168929128337) internal successors, (120576), 87147 states have internal predecessors, (120576), 16949 states have call successors, (16949), 14884 states have call predecessors, (16949), 16605 states have return successors, (45080), 22305 states have call predecessors, (45080), 16735 states have call successors, (45080) [2023-04-01 06:13:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116282 states to 116282 states and 182605 transitions. [2023-04-01 06:13:16,920 INFO L78 Accepts]: Start accepts. Automaton has 116282 states and 182605 transitions. Word has length 137 [2023-04-01 06:13:16,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:13:16,920 INFO L495 AbstractCegarLoop]: Abstraction has 116282 states and 182605 transitions. [2023-04-01 06:13:16,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-01 06:13:16,921 INFO L276 IsEmpty]: Start isEmpty. Operand 116282 states and 182605 transitions. [2023-04-01 06:13:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 06:13:16,922 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:13:16,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:13:16,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 06:13:16,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:13:16,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:13:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 634077827, now seen corresponding path program 1 times [2023-04-01 06:13:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:13:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154569417] [2023-04-01 06:13:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:13:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:13:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:13:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:13:17,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:13:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154569417] [2023-04-01 06:13:17,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154569417] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:13:17,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:13:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:13:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645336329] [2023-04-01 06:13:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:13:17,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:13:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:13:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:13:17,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:13:17,301 INFO L87 Difference]: Start difference. First operand 116282 states and 182605 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22)