/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 [2023-04-03 01:30:39,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:30:39,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:30:39,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:30:39,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:30:39,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:30:39,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:30:39,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:30:39,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:30:39,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:30:39,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:30:39,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:30:39,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:30:39,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:30:39,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:30:39,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:30:39,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:30:39,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:30:39,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:30:39,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:30:39,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:30:39,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:30:39,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:30:39,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:30:39,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:30:39,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:30:39,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:30:39,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:30:39,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:30:39,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:30:39,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:30:39,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:30:39,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:30:39,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:30:39,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:30:39,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:30:39,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:30:39,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:30:39,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:30:39,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:30:39,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:30:39,262 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 [2023-04-03 01:30:39,301 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:30:39,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:30:39,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:30:39,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:30:39,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:30:39,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:30:39,302 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:30:39,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:30:39,302 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:30:39,303 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:30:39,303 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:30:39,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:30:39,304 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:30:39,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:30:39,304 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:30:39,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:30:39,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:30:39,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:30:39,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:30:39,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:30:39,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:30:39,310 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:30:39,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:30:39,310 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:30:39,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:30:39,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:30:39,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:30:39,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:30:39,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:30:39,311 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:30:39,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:30:39,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:30:39,312 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:30:39,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:30:39,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:30:39,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:30:39,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:30:39,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:30:39,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:30:39,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:30:39,521 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:30:39,521 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:30:39,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.15.cil.c [2023-04-03 01:30:40,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:30:40,794 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:30:40,797 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2023-04-03 01:30:40,808 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2daa7ae46/4f8a407435d940d28ace936f4fc20515/FLAG8125004c7 [2023-04-03 01:30:40,819 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2daa7ae46/4f8a407435d940d28ace936f4fc20515 [2023-04-03 01:30:40,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:30:40,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:30:40,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:30:40,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:30:40,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:30:40,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:30:40" (1/1) ... [2023-04-03 01:30:40,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a339e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:40, skipping insertion in model container [2023-04-03 01:30:40,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:30:40" (1/1) ... [2023-04-03 01:30:40,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:30:40,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:30:40,980 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] [2023-04-03 01:30:41,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:30:41,087 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:30:41,096 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] [2023-04-03 01:30:41,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:30:41,189 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:30:41,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41 WrapperNode [2023-04-03 01:30:41,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:30:41,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:30:41,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:30:41,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:30:41,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:30:41,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:30:41,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:30:41,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:30:41,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (1/1) ... [2023-04-03 01:30:41,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:30:41,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:30:41,357 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) [2023-04-03 01:30:41,385 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 [2023-04-03 01:30:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:30:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:30:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:30:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-03 01:30:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-03 01:30:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-03 01:30:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-04-03 01:30:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-04-03 01:30:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-04-03 01:30:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-04-03 01:30:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-03 01:30:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-03 01:30:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-03 01:30:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-03 01:30:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-03 01:30:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-03 01:30:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-04-03 01:30:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-04-03 01:30:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-04-03 01:30:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-04-03 01:30:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-03 01:30:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2023-04-03 01:30:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2023-04-03 01:30:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-03 01:30:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-03 01:30:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-03 01:30:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-03 01:30:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:30:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:30:41,561 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:30:41,564 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:30:42,367 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:30:42,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:30:42,798 INFO L302 CfgBuilder]: Removed 17 assume(true) statements. [2023-04-03 01:30:42,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:30:42 BoogieIcfgContainer [2023-04-03 01:30:42,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:30:42,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:30:42,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:30:42,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:30:42,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:30:40" (1/3) ... [2023-04-03 01:30:42,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605c6075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:30:42, skipping insertion in model container [2023-04-03 01:30:42,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:41" (2/3) ... [2023-04-03 01:30:42,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605c6075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:30:42, skipping insertion in model container [2023-04-03 01:30:42,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:30:42" (3/3) ... [2023-04-03 01:30:42,810 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2023-04-03 01:30:42,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:30:42,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:30:42,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:30:42,889 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;@67fcfae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:30:42,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:30:42,897 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) [2023-04-03 01:30:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:42,913 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:42,918 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] [2023-04-03 01:30:42,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:42,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -27791419, now seen corresponding path program 1 times [2023-04-03 01:30:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228750227] [2023-04-03 01:30:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:42,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:43,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228750227] [2023-04-03 01:30:43,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228750227] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:43,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:43,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 01:30:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951202292] [2023-04-03 01:30:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:43,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 01:30:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 01:30:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:30:43,654 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) [2023-04-03 01:30:44,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:44,404 INFO L93 Difference]: Finished difference Result 882 states and 1261 transitions. [2023-04-03 01:30:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 01:30:44,407 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 [2023-04-03 01:30:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:44,423 INFO L225 Difference]: With dead ends: 882 [2023-04-03 01:30:44,424 INFO L226 Difference]: Without dead ends: 578 [2023-04-03 01:30:44,432 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 [2023-04-03 01:30:44,435 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 742 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:44,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1071 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 01:30:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-04-03 01:30:44,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 574. [2023-04-03 01:30:44,500 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) [2023-04-03 01:30:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 771 transitions. [2023-04-03 01:30:44,504 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 771 transitions. Word has length 137 [2023-04-03 01:30:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:44,505 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 771 transitions. [2023-04-03 01:30:44,505 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) [2023-04-03 01:30:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 771 transitions. [2023-04-03 01:30:44,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:44,507 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:44,507 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] [2023-04-03 01:30:44,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:30:44,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:44,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1422827172, now seen corresponding path program 1 times [2023-04-03 01:30:44,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:44,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812138095] [2023-04-03 01:30:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:44,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:44,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:44,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812138095] [2023-04-03 01:30:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812138095] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:44,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:44,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:44,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893367343] [2023-04-03 01:30:44,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:44,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:44,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:44,914 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) [2023-04-03 01:30:46,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:46,343 INFO L93 Difference]: Finished difference Result 2498 states and 3575 transitions. [2023-04-03 01:30:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:46,343 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 [2023-04-03 01:30:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:46,355 INFO L225 Difference]: With dead ends: 2498 [2023-04-03 01:30:46,355 INFO L226 Difference]: Without dead ends: 1902 [2023-04-03 01:30:46,360 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 [2023-04-03 01:30:46,361 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 2533 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2550 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:46,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2550 Valid, 2330 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:30:46,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2023-04-03 01:30:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1843. [2023-04-03 01:30:46,481 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) [2023-04-03 01:30:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2526 transitions. [2023-04-03 01:30:46,493 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2526 transitions. Word has length 137 [2023-04-03 01:30:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:46,494 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2526 transitions. [2023-04-03 01:30:46,495 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) [2023-04-03 01:30:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2526 transitions. [2023-04-03 01:30:46,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:46,500 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:46,501 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] [2023-04-03 01:30:46,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:30:46,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:46,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:46,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1501078363, now seen corresponding path program 1 times [2023-04-03 01:30:46,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:46,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195296464] [2023-04-03 01:30:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:46,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:46,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195296464] [2023-04-03 01:30:46,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195296464] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:46,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92104283] [2023-04-03 01:30:46,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:46,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:46,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:46,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:46,814 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) [2023-04-03 01:30:48,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:48,263 INFO L93 Difference]: Finished difference Result 7613 states and 11273 transitions. [2023-04-03 01:30:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:48,263 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 [2023-04-03 01:30:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:48,293 INFO L225 Difference]: With dead ends: 7613 [2023-04-03 01:30:48,294 INFO L226 Difference]: Without dead ends: 5694 [2023-04-03 01:30:48,310 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 [2023-04-03 01:30:48,313 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 2523 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:48,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2542 Valid, 2331 Invalid, 2358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 01:30:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2023-04-03 01:30:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5467. [2023-04-03 01:30:48,611 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) [2023-04-03 01:30:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 7686 transitions. [2023-04-03 01:30:48,652 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 7686 transitions. Word has length 137 [2023-04-03 01:30:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:48,652 INFO L495 AbstractCegarLoop]: Abstraction has 5467 states and 7686 transitions. [2023-04-03 01:30:48,653 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) [2023-04-03 01:30:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 7686 transitions. [2023-04-03 01:30:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:48,654 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:48,654 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] [2023-04-03 01:30:48,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:30:48,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:48,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1790832068, now seen corresponding path program 1 times [2023-04-03 01:30:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:48,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505687075] [2023-04-03 01:30:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:48,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505687075] [2023-04-03 01:30:48,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505687075] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:48,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:48,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:48,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014698824] [2023-04-03 01:30:48,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:48,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:48,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:48,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:48,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:48,935 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) [2023-04-03 01:30:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:50,790 INFO L93 Difference]: Finished difference Result 22320 states and 34274 transitions. [2023-04-03 01:30:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:50,791 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 [2023-04-03 01:30:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:50,894 INFO L225 Difference]: With dead ends: 22320 [2023-04-03 01:30:50,894 INFO L226 Difference]: Without dead ends: 16630 [2023-04-03 01:30:50,938 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 [2023-04-03 01:30:50,942 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 2506 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:50,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 2332 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 01:30:50,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16630 states. [2023-04-03 01:30:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16630 to 15430. [2023-04-03 01:30:51,884 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) [2023-04-03 01:30:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15430 states to 15430 states and 22347 transitions. [2023-04-03 01:30:51,996 INFO L78 Accepts]: Start accepts. Automaton has 15430 states and 22347 transitions. Word has length 137 [2023-04-03 01:30:51,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:51,998 INFO L495 AbstractCegarLoop]: Abstraction has 15430 states and 22347 transitions. [2023-04-03 01:30:51,999 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) [2023-04-03 01:30:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 15430 states and 22347 transitions. [2023-04-03 01:30:52,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:52,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:52,000 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] [2023-04-03 01:30:52,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:30:52,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:52,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:52,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1582214877, now seen corresponding path program 1 times [2023-04-03 01:30:52,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:52,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727286804] [2023-04-03 01:30:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:52,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:52,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:52,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727286804] [2023-04-03 01:30:52,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727286804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:52,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:52,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:52,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047371952] [2023-04-03 01:30:52,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:52,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:52,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:52,278 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) [2023-04-03 01:30:55,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:55,709 INFO L93 Difference]: Finished difference Result 63331 states and 101474 transitions. [2023-04-03 01:30:55,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:55,710 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 [2023-04-03 01:30:55,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:55,951 INFO L225 Difference]: With dead ends: 63331 [2023-04-03 01:30:55,951 INFO L226 Difference]: Without dead ends: 47287 [2023-04-03 01:30:56,059 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 [2023-04-03 01:30:56,059 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 2497 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 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, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:56,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 2331 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 01:30:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47287 states. [2023-04-03 01:30:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47287 to 42921. [2023-04-03 01:30:58,698 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) [2023-04-03 01:30:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42921 states to 42921 states and 64348 transitions. [2023-04-03 01:30:59,043 INFO L78 Accepts]: Start accepts. Automaton has 42921 states and 64348 transitions. Word has length 137 [2023-04-03 01:30:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:59,044 INFO L495 AbstractCegarLoop]: Abstraction has 42921 states and 64348 transitions. [2023-04-03 01:30:59,044 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) [2023-04-03 01:30:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 42921 states and 64348 transitions. [2023-04-03 01:30:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:30:59,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:59,046 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] [2023-04-03 01:30:59,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:30:59,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:59,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:59,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1775725220, now seen corresponding path program 1 times [2023-04-03 01:30:59,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:59,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120584717] [2023-04-03 01:30:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:59,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:30:59,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120584717] [2023-04-03 01:30:59,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120584717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:59,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:59,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:59,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531013897] [2023-04-03 01:30:59,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:59,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:59,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:59,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:59,347 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) [2023-04-03 01:31:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:31:08,617 INFO L93 Difference]: Finished difference Result 174476 states and 295630 transitions. [2023-04-03 01:31:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:31:08,618 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 [2023-04-03 01:31:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:31:09,819 INFO L225 Difference]: With dead ends: 174476 [2023-04-03 01:31:09,819 INFO L226 Difference]: Without dead ends: 129890 [2023-04-03 01:31:10,341 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 [2023-04-03 01:31:10,342 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 2412 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 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, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:31:10,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 2445 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 01:31:10,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129890 states. [2023-04-03 01:31:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129890 to 116282. [2023-04-03 01:31:17,212 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) [2023-04-03 01:31:18,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116282 states to 116282 states and 182605 transitions. [2023-04-03 01:31:18,599 INFO L78 Accepts]: Start accepts. Automaton has 116282 states and 182605 transitions. Word has length 137 [2023-04-03 01:31:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:31:18,599 INFO L495 AbstractCegarLoop]: Abstraction has 116282 states and 182605 transitions. [2023-04-03 01:31:18,600 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) [2023-04-03 01:31:18,600 INFO L276 IsEmpty]: Start isEmpty. Operand 116282 states and 182605 transitions. [2023-04-03 01:31:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-03 01:31:18,601 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:31:18,601 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] [2023-04-03 01:31:18,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:31:18,603 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:31:18,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:31:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash 634077827, now seen corresponding path program 1 times [2023-04-03 01:31:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:31:18,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100485193] [2023-04-03 01:31:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:31:18,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:31:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:31:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:31:18,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:31:18,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100485193] [2023-04-03 01:31:18,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100485193] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:31:18,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:31:18,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:31:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723467140] [2023-04-03 01:31:18,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:31:18,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:31:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:31:18,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:31:18,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:31:18,827 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) [2023-04-03 01:31:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:31:43,924 INFO L93 Difference]: Finished difference Result 476627 states and 867346 transitions. [2023-04-03 01:31:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:31:43,924 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 [2023-04-03 01:31:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:31:46,668 INFO L225 Difference]: With dead ends: 476627 [2023-04-03 01:31:46,668 INFO L226 Difference]: Without dead ends: 355797 [2023-04-03 01:31:48,605 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 [2023-04-03 01:31:48,606 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 2412 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:31:48,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 2429 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 01:31:48,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355797 states.