/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.13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:30:10,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:30:10,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:30:10,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:30:10,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:30:10,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:30:10,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:30:10,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:30:10,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:30:10,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:30:10,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:30:10,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:30:10,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:30:10,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:30:10,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:30:10,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:30:10,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:30:10,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:30:10,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:30:10,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:30:10,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:30:10,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:30:10,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:30:10,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:30:10,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:30:10,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:30:10,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:30:10,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:30:10,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:30:10,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:30:10,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:30:10,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:30:10,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:30:10,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:30:10,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:30:10,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:30:10,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:30:10,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:30:10,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:30:10,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:30:10,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:30:10,452 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 01:30:10,466 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:30:10,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:30:10,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:30:10,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:30:10,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:30:10,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:30:10,467 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:30:10,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:30:10,468 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:30:10,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:30:10,472 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:30:10,472 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:30:10,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:30:10,473 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:30:10,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:30:10,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:30:10,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:30:10,475 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:30:10,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:30:10,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:30:10,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:30:10,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:30:10,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:30:10,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:30:10,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:30:10,773 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:30:10,773 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:30:10,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2023-04-03 01:30:11,931 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:30:12,093 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:30:12,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2023-04-03 01:30:12,104 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989a5da7c/d3ec2b619d1e414b8db3b6f0187d37e4/FLAGf4f9bb048 [2023-04-03 01:30:12,114 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989a5da7c/d3ec2b619d1e414b8db3b6f0187d37e4 [2023-04-03 01:30:12,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:30:12,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:30:12,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:30:12,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:30:12,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:30:12,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c70d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12, skipping insertion in model container [2023-04-03 01:30:12,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:30:12,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:30:12,254 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.13.cil.c[706,719] [2023-04-03 01:30:12,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:30:12,344 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:30:12,353 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.13.cil.c[706,719] [2023-04-03 01:30:12,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:30:12,409 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:30:12,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12 WrapperNode [2023-04-03 01:30:12,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:30:12,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:30:12,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:30:12,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:30:12,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,458 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:30:12,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:30:12,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:30:12,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:30:12,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (1/1) ... [2023-04-03 01:30:12,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:30:12,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:30:12,504 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 01:30:12,521 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 01:30:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:30:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-04-03 01:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-04-03 01:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-03 01:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-03 01:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-03 01:30:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-04-03 01:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2023-04-03 01:30:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-04-03 01:30:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-03 01:30:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:30:12,674 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:30:12,676 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:30:13,328 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:30:13,801 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:30:13,802 INFO L302 CfgBuilder]: Removed 17 assume(true) statements. [2023-04-03 01:30:13,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:30:13 BoogieIcfgContainer [2023-04-03 01:30:13,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:30:13,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:30:13,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:30:13,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:30:13,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:30:12" (1/3) ... [2023-04-03 01:30:13,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535ac9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:30:13, skipping insertion in model container [2023-04-03 01:30:13,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:30:12" (2/3) ... [2023-04-03 01:30:13,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535ac9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:30:13, skipping insertion in model container [2023-04-03 01:30:13,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:30:13" (3/3) ... [2023-04-03 01:30:13,816 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2023-04-03 01:30:13,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:30:13,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:30:13,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:30:13,893 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;@1a6cd145, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:30:13,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:30:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 200 states have (on average 1.46) internal successors, (292), 218 states have internal predecessors, (292), 64 states have call successors, (64), 44 states have call predecessors, (64), 44 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-04-03 01:30:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:13,945 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:13,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:13,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:13,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 914438797, now seen corresponding path program 1 times [2023-04-03 01:30:13,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:13,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704038951] [2023-04-03 01:30:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:14,673 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 01:30:14,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:14,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704038951] [2023-04-03 01:30:14,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704038951] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:14,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:14,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 01:30:14,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050672131] [2023-04-03 01:30:14,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:14,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 01:30:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:14,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 01:30:14,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:30:14,705 INFO L87 Difference]: Start difference. First operand has 310 states, 200 states have (on average 1.46) internal successors, (292), 218 states have internal predecessors, (292), 64 states have call successors, (64), 44 states have call predecessors, (64), 44 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-03 01:30:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:15,410 INFO L93 Difference]: Finished difference Result 888 states and 1275 transitions. [2023-04-03 01:30:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 01:30:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 152 [2023-04-03 01:30:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:15,432 INFO L225 Difference]: With dead ends: 888 [2023-04-03 01:30:15,432 INFO L226 Difference]: Without dead ends: 582 [2023-04-03 01:30:15,440 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 01:30:15,444 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 750 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:15,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1087 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 01:30:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-03 01:30:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2023-04-03 01:30:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 382 states have (on average 1.431937172774869) internal successors, (547), 412 states have internal predecessors, (547), 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 01:30:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 779 transitions. [2023-04-03 01:30:15,560 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 779 transitions. Word has length 152 [2023-04-03 01:30:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:15,561 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 779 transitions. [2023-04-03 01:30:15,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-03 01:30:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 779 transitions. [2023-04-03 01:30:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:15,569 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:15,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:15,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:30:15,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:15,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash 136909262, now seen corresponding path program 1 times [2023-04-03 01:30:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:15,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641676908] [2023-04-03 01:30:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:15,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:16,046 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 01:30:16,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641676908] [2023-04-03 01:30:16,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641676908] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:16,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075759643] [2023-04-03 01:30:16,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:16,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:16,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:16,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:16,049 INFO L87 Difference]: Start difference. First operand 578 states and 779 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:17,436 INFO L93 Difference]: Finished difference Result 2516 states and 3611 transitions. [2023-04-03 01:30:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:17,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:30:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:17,450 INFO L225 Difference]: With dead ends: 2516 [2023-04-03 01:30:17,450 INFO L226 Difference]: Without dead ends: 1916 [2023-04-03 01:30:17,456 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 01:30:17,457 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 2568 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 2370 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 01:30:17,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 2370 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:30:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2023-04-03 01:30:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1858. [2023-04-03 01:30:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1270 states have (on average 1.4283464566929134) internal successors, (1814), 1345 states have internal predecessors, (1814), 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 01:30:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2556 transitions. [2023-04-03 01:30:17,595 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2556 transitions. Word has length 152 [2023-04-03 01:30:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:17,596 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2556 transitions. [2023-04-03 01:30:17,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2556 transitions. [2023-04-03 01:30:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:17,598 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:17,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:17,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:30:17,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:17,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 867070381, now seen corresponding path program 1 times [2023-04-03 01:30:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:17,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071328152] [2023-04-03 01:30:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:17,890 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 01:30:17,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:17,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071328152] [2023-04-03 01:30:17,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071328152] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:17,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:17,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:17,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948274511] [2023-04-03 01:30:17,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:17,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:17,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:17,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:17,893 INFO L87 Difference]: Start difference. First operand 1858 states and 2556 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:19,291 INFO L93 Difference]: Finished difference Result 7683 states and 11413 transitions. [2023-04-03 01:30:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:30:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:19,317 INFO L225 Difference]: With dead ends: 7683 [2023-04-03 01:30:19,318 INFO L226 Difference]: Without dead ends: 5749 [2023-04-03 01:30:19,333 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 01:30:19,336 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 2559 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 2371 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 01:30:19,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 2371 Invalid, 2358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 01:30:19,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2023-04-03 01:30:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5524. [2023-04-03 01:30:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 3849 states have (on average 1.4372564302416213) internal successors, (5532), 4059 states have internal predecessors, (5532), 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 01:30:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 7796 transitions. [2023-04-03 01:30:19,657 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 7796 transitions. Word has length 152 [2023-04-03 01:30:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:19,659 INFO L495 AbstractCegarLoop]: Abstraction has 5524 states and 7796 transitions. [2023-04-03 01:30:19,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 7796 transitions. [2023-04-03 01:30:19,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:19,664 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:19,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:19,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:30:19,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:19,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1408393554, now seen corresponding path program 1 times [2023-04-03 01:30:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:19,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885168271] [2023-04-03 01:30:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:19,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:19,959 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 01:30:19,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885168271] [2023-04-03 01:30:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885168271] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:19,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179949491] [2023-04-03 01:30:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:19,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:19,962 INFO L87 Difference]: Start difference. First operand 5524 states and 7796 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:22,024 INFO L93 Difference]: Finished difference Result 22589 states and 34792 transitions. [2023-04-03 01:30:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:30:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:22,109 INFO L225 Difference]: With dead ends: 22589 [2023-04-03 01:30:22,109 INFO L226 Difference]: Without dead ends: 16842 [2023-04-03 01:30:22,153 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 01:30:22,154 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 2542 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:22,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 2372 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 01:30:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16842 states. [2023-04-03 01:30:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16842 to 15624. [2023-04-03 01:30:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15624 states, 11021 states have (on average 1.4477815080301244) internal successors, (15956), 11603 states have internal predecessors, (15956), 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 01:30:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15624 states to 15624 states and 22719 transitions. [2023-04-03 01:30:22,991 INFO L78 Accepts]: Start accepts. Automaton has 15624 states and 22719 transitions. Word has length 152 [2023-04-03 01:30:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:22,991 INFO L495 AbstractCegarLoop]: Abstraction has 15624 states and 22719 transitions. [2023-04-03 01:30:22,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 15624 states and 22719 transitions. [2023-04-03 01:30:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:22,994 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:22,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:22,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:30:22,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:22,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1856581999, now seen corresponding path program 1 times [2023-04-03 01:30:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701155471] [2023-04-03 01:30:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:23,255 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 01:30:23,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:23,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701155471] [2023-04-03 01:30:23,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701155471] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:23,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:23,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:23,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168852971] [2023-04-03 01:30:23,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:23,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:23,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:23,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:23,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:23,259 INFO L87 Difference]: Start difference. First operand 15624 states and 22719 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:26,696 INFO L93 Difference]: Finished difference Result 64247 states and 103226 transitions. [2023-04-03 01:30:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:26,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:30:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:26,934 INFO L225 Difference]: With dead ends: 64247 [2023-04-03 01:30:26,934 INFO L226 Difference]: Without dead ends: 48009 [2023-04-03 01:30:27,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:30:27,062 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 2533 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2563 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 874 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:27,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2563 Valid, 2372 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [874 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:30:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48009 states. [2023-04-03 01:30:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48009 to 43542. [2023-04-03 01:30:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43542 states, 30995 states have (on average 1.4570091950314568) internal successors, (45160), 32595 states have internal predecessors, (45160), 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 01:30:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43542 states to 43542 states and 65538 transitions. [2023-04-03 01:30:30,164 INFO L78 Accepts]: Start accepts. Automaton has 43542 states and 65538 transitions. Word has length 152 [2023-04-03 01:30:30,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:30,165 INFO L495 AbstractCegarLoop]: Abstraction has 43542 states and 65538 transitions. [2023-04-03 01:30:30,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 43542 states and 65538 transitions. [2023-04-03 01:30:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:30,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:30,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:30,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:30:30,169 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:30,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2129577422, now seen corresponding path program 1 times [2023-04-03 01:30:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:30,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139721542] [2023-04-03 01:30:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:30,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:30,514 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 01:30:30,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:30,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139721542] [2023-04-03 01:30:30,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139721542] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:30,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:30,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:30,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181812933] [2023-04-03 01:30:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:30,516 INFO L87 Difference]: Start difference. First operand 43542 states and 65538 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:30:40,541 INFO L93 Difference]: Finished difference Result 177403 states and 301224 transitions. [2023-04-03 01:30:40,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:30:40,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:30:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:30:41,543 INFO L225 Difference]: With dead ends: 177403 [2023-04-03 01:30:41,544 INFO L226 Difference]: Without dead ends: 132196 [2023-04-03 01:30:42,222 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 01:30:42,223 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 2443 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:30:42,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2473 Valid, 2495 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 01:30:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132196 states. [2023-04-03 01:30:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132196 to 118210. [2023-04-03 01:30:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118210 states, 84655 states have (on average 1.4679818085169216) internal successors, (124272), 89075 states have internal predecessors, (124272), 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 01:30:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118210 states to 118210 states and 186301 transitions. [2023-04-03 01:30:51,296 INFO L78 Accepts]: Start accepts. Automaton has 118210 states and 186301 transitions. Word has length 152 [2023-04-03 01:30:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:30:51,298 INFO L495 AbstractCegarLoop]: Abstraction has 118210 states and 186301 transitions. [2023-04-03 01:30:51,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:30:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 118210 states and 186301 transitions. [2023-04-03 01:30:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 01:30:51,316 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:30:51,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:30:51,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:30:51,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:30:51,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:30:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash -33401841, now seen corresponding path program 1 times [2023-04-03 01:30:51,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:30:51,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913610041] [2023-04-03 01:30:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:30:51,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:30:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:30:51,737 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 01:30:51,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:30:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913610041] [2023-04-03 01:30:51,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913610041] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:30:51,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:30:51,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:30:51,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964391768] [2023-04-03 01:30:51,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:30:51,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:30:51,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:30:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:30:51,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:30:51,739 INFO L87 Difference]: Start difference. First operand 118210 states and 186301 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-03 01:31:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:31:18,890 INFO L93 Difference]: Finished difference Result 485697 states and 884686 transitions. [2023-04-03 01:31:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:31:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 152 [2023-04-03 01:31:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:31:21,680 INFO L225 Difference]: With dead ends: 485697 [2023-04-03 01:31:21,681 INFO L226 Difference]: Without dead ends: 362939 [2023-04-03 01:31:23,906 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 01:31:23,907 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 2443 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:31:23,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 2480 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:31:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362939 states.