/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 EqDomain -i ../sv-benchmarks/c/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:18:06,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:18:06,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:18:06,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:18:06,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:18:06,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:18:06,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:18:06,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:18:06,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:18:06,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:18:06,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:18:06,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:18:06,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:18:06,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:18:06,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:18:06,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:18:06,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:18:06,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:18:06,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:18:06,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:18:06,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:18:06,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:18:06,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:18:06,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:18:06,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:18:06,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:18:06,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:18:06,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:18:06,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:18:06,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:18:06,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:18:06,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:18:06,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:18:06,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:18:06,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:18:06,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:18:06,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:18:06,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:18:06,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:18:06,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:18:06,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:18:06,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:18:06,795 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:18:06,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:18:06,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:18:06,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:18:06,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:18:06,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:18:06,797 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:18:06,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:18:06,798 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:18:06,798 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:18:06,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:18:06,799 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:18:06,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:18:06,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:18:06,800 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:18:06,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:18:06,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:18:06,801 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:18:06,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:18:06,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:18:06,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:18:06,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:18:06,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:18:06,802 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:18:06,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:18:06,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:18:07,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:18:07,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:18:07,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:18:07,084 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:18:07,084 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:18:07,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.01.cil.c [2023-04-01 12:18:08,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:18:08,506 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:18:08,507 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.01.cil.c [2023-04-01 12:18:08,517 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467ad0240/f4b6a1b15f614de985954aadff2e1cda/FLAG6e26bdc48 [2023-04-01 12:18:08,532 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467ad0240/f4b6a1b15f614de985954aadff2e1cda [2023-04-01 12:18:08,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:18:08,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:18:08,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:18:08,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:18:08,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:18:08,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce41a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08, skipping insertion in model container [2023-04-01 12:18:08,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:18:08,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:18:08,680 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.01.cil.c[706,719] [2023-04-01 12:18:08,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:18:08,731 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:18:08,741 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.01.cil.c[706,719] [2023-04-01 12:18:08,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:18:08,771 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:18:08,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08 WrapperNode [2023-04-01 12:18:08,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:18:08,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:18:08,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:18:08,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:18:08,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:18:08,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:18:08,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:18:08,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:18:08,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (1/1) ... [2023-04-01 12:18:08,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:18:08,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:18:08,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:18:08,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:18:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:18:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:18:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:18:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-01 12:18:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-01 12:18:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-01 12:18:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-01 12:18:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-01 12:18:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:18:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:18:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:18:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:18:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:18:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-01 12:18:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-01 12:18:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-01 12:18:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-01 12:18:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:18:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:18:08,995 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:18:08,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:18:09,378 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:18:09,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:18:09,464 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:18:09,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:18:09 BoogieIcfgContainer [2023-04-01 12:18:09,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:18:09,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:18:09,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:18:09,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:18:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:18:08" (1/3) ... [2023-04-01 12:18:09,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f7544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:18:09, skipping insertion in model container [2023-04-01 12:18:09,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:18:08" (2/3) ... [2023-04-01 12:18:09,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f7544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:18:09, skipping insertion in model container [2023-04-01 12:18:09,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:18:09" (3/3) ... [2023-04-01 12:18:09,479 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2023-04-01 12:18:09,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:18:09,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:18:09,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:18:09,565 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;@296a1d59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:18:09,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:18:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 62 states have internal predecessors, (76), 28 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-04-01 12:18:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 12:18:09,587 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:09,587 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] [2023-04-01 12:18:09,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:09,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1271753881, now seen corresponding path program 1 times [2023-04-01 12:18:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582935661] [2023-04-01 12:18:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:09,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:18:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:18:10,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:18:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582935661] [2023-04-01 12:18:10,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582935661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:18:10,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:18:10,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 12:18:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989516433] [2023-04-01 12:18:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:18:10,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 12:18:10,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:18:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 12:18:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 12:18:10,085 INFO L87 Difference]: Start difference. First operand has 106 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 62 states have internal predecessors, (76), 28 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 12:18:10,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:18:10,396 INFO L93 Difference]: Finished difference Result 273 states and 359 transitions. [2023-04-01 12:18:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 12:18:10,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 56 [2023-04-01 12:18:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:18:10,422 INFO L225 Difference]: With dead ends: 273 [2023-04-01 12:18:10,422 INFO L226 Difference]: Without dead ends: 171 [2023-04-01 12:18:10,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 12:18:10,429 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 195 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 12:18:10,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 267 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 12:18:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-04-01 12:18:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2023-04-01 12:18:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 93 states have (on average 1.2258064516129032) internal successors, (114), 99 states have internal predecessors, (114), 44 states have call successors, (44), 33 states have call predecessors, (44), 29 states have return successors, (42), 40 states have call predecessors, (42), 41 states have call successors, (42) [2023-04-01 12:18:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 200 transitions. [2023-04-01 12:18:10,513 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 200 transitions. Word has length 56 [2023-04-01 12:18:10,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:18:10,515 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 200 transitions. [2023-04-01 12:18:10,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 12:18:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 200 transitions. [2023-04-01 12:18:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 12:18:10,519 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:10,520 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] [2023-04-01 12:18:10,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:18:10,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:10,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:10,526 INFO L85 PathProgramCache]: Analyzing trace with hash -304803878, now seen corresponding path program 1 times [2023-04-01 12:18:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:10,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852617109] [2023-04-01 12:18:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:18:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:18:10,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:18:10,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852617109] [2023-04-01 12:18:10,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852617109] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:18:10,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:18:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-01 12:18:10,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11896868] [2023-04-01 12:18:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:18:10,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-01 12:18:10,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:18:10,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-01 12:18:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-01 12:18:10,930 INFO L87 Difference]: Start difference. First operand 167 states and 200 transitions. Second operand has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 12:18:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:18:11,499 INFO L93 Difference]: Finished difference Result 450 states and 562 transitions. [2023-04-01 12:18:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-01 12:18:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 56 [2023-04-01 12:18:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:18:11,503 INFO L225 Difference]: With dead ends: 450 [2023-04-01 12:18:11,503 INFO L226 Difference]: Without dead ends: 300 [2023-04-01 12:18:11,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2023-04-01 12:18:11,506 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 344 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 12:18:11,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 327 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 12:18:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-04-01 12:18:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 271. [2023-04-01 12:18:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 159 states have (on average 1.2452830188679245) internal successors, (198), 171 states have internal predecessors, (198), 65 states have call successors, (65), 48 states have call predecessors, (65), 46 states have return successors, (69), 61 states have call predecessors, (69), 62 states have call successors, (69) [2023-04-01 12:18:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 332 transitions. [2023-04-01 12:18:11,546 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 332 transitions. Word has length 56 [2023-04-01 12:18:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:18:11,546 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 332 transitions. [2023-04-01 12:18:11,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 12:18:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 332 transitions. [2023-04-01 12:18:11,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-01 12:18:11,548 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:11,548 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] [2023-04-01 12:18:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:18:11,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:11,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1540702360, now seen corresponding path program 1 times [2023-04-01 12:18:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927047590] [2023-04-01 12:18:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:18:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:18:11,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:18:11,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927047590] [2023-04-01 12:18:11,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927047590] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:18:11,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:18:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:18:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524991977] [2023-04-01 12:18:11,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:18:11,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:18:11,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:18:11,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:18:11,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:18:11,655 INFO L87 Difference]: Start difference. First operand 271 states and 332 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 12:18:11,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:18:11,757 INFO L93 Difference]: Finished difference Result 767 states and 979 transitions. [2023-04-01 12:18:11,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:18:11,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 57 [2023-04-01 12:18:11,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:18:11,761 INFO L225 Difference]: With dead ends: 767 [2023-04-01 12:18:11,761 INFO L226 Difference]: Without dead ends: 512 [2023-04-01 12:18:11,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:18:11,764 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 84 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:18:11,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 205 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:18:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-04-01 12:18:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 509. [2023-04-01 12:18:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 302 states have (on average 1.2119205298013245) internal successors, (366), 322 states have internal predecessors, (366), 120 states have call successors, (120), 90 states have call predecessors, (120), 86 states have return successors, (141), 110 states have call predecessors, (141), 117 states have call successors, (141) [2023-04-01 12:18:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 627 transitions. [2023-04-01 12:18:11,835 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 627 transitions. Word has length 57 [2023-04-01 12:18:11,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:18:11,837 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 627 transitions. [2023-04-01 12:18:11,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 12:18:11,838 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 627 transitions. [2023-04-01 12:18:11,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-01 12:18:11,844 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:11,845 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:18:11,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:18:11,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:11,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1691740950, now seen corresponding path program 1 times [2023-04-01 12:18:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271745881] [2023-04-01 12:18:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:18:11,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 12:18:11,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:18:11,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271745881] [2023-04-01 12:18:11,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271745881] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:18:11,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:18:11,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:18:11,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254973061] [2023-04-01 12:18:11,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:18:11,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:18:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:18:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:18:11,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:18:11,909 INFO L87 Difference]: Start difference. First operand 509 states and 627 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 12:18:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:18:12,009 INFO L93 Difference]: Finished difference Result 916 states and 1151 transitions. [2023-04-01 12:18:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:18:12,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2023-04-01 12:18:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:18:12,014 INFO L225 Difference]: With dead ends: 916 [2023-04-01 12:18:12,014 INFO L226 Difference]: Without dead ends: 662 [2023-04-01 12:18:12,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:18:12,023 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 47 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:18:12,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 243 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:18:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-04-01 12:18:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 564. [2023-04-01 12:18:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 342 states have (on average 1.2163742690058479) internal successors, (416), 368 states have internal predecessors, (416), 126 states have call successors, (126), 94 states have call predecessors, (126), 95 states have return successors, (159), 116 states have call predecessors, (159), 123 states have call successors, (159) [2023-04-01 12:18:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 701 transitions. [2023-04-01 12:18:12,103 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 701 transitions. Word has length 71 [2023-04-01 12:18:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:18:12,104 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 701 transitions. [2023-04-01 12:18:12,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 12:18:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 701 transitions. [2023-04-01 12:18:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-01 12:18:12,108 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:12,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:18:12,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:18:12,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:12,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:12,115 INFO L85 PathProgramCache]: Analyzing trace with hash 435502577, now seen corresponding path program 1 times [2023-04-01 12:18:12,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:12,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624462342] [2023-04-01 12:18:12,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:12,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:18:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-01 12:18:12,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:18:12,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624462342] [2023-04-01 12:18:12,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624462342] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:18:12,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:18:12,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 12:18:12,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977058690] [2023-04-01 12:18:12,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:18:12,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 12:18:12,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:18:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 12:18:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 12:18:12,218 INFO L87 Difference]: Start difference. First operand 564 states and 701 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-01 12:18:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:18:12,420 INFO L93 Difference]: Finished difference Result 873 states and 1103 transitions. [2023-04-01 12:18:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 12:18:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2023-04-01 12:18:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:18:12,426 INFO L225 Difference]: With dead ends: 873 [2023-04-01 12:18:12,426 INFO L226 Difference]: Without dead ends: 564 [2023-04-01 12:18:12,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 12:18:12,430 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 184 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:18:12,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 253 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:18:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-04-01 12:18:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 556. [2023-04-01 12:18:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 338 states have (on average 1.1893491124260356) internal successors, (402), 362 states have internal predecessors, (402), 122 states have call successors, (122), 92 states have call predecessors, (122), 95 states have return successors, (144), 116 states have call predecessors, (144), 118 states have call successors, (144) [2023-04-01 12:18:12,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 668 transitions. [2023-04-01 12:18:12,494 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 668 transitions. Word has length 98 [2023-04-01 12:18:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:18:12,494 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 668 transitions. [2023-04-01 12:18:12,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-01 12:18:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 668 transitions. [2023-04-01 12:18:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-01 12:18:12,496 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:18:12,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:18:12,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:18:12,497 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:18:12,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:18:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -555662096, now seen corresponding path program 1 times [2023-04-01 12:18:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:18:12,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385824097] [2023-04-01 12:18:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:18:12,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:18:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:18:12,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 12:18:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:18:12,589 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 12:18:12,590 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 12:18:12,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:18:12,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 12:18:12,595 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-01 12:18:12,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:18:12,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:18:12 BoogieIcfgContainer [2023-04-01 12:18:12,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:18:12,659 INFO L158 Benchmark]: Toolchain (without parser) took 4122.62ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 134.8MB in the beginning and 93.6MB in the end (delta: 41.2MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. [2023-04-01 12:18:12,659 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory was 132.4MB in the beginning and 132.3MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:18:12,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.57ms. Allocated memory is still 177.2MB. Free memory was 134.5MB in the beginning and 122.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 12:18:12,659 INFO L158 Benchmark]: Boogie Preprocessor took 41.65ms. Allocated memory is still 177.2MB. Free memory was 122.1MB in the beginning and 120.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 12:18:12,660 INFO L158 Benchmark]: RCFGBuilder took 654.82ms. Allocated memory is still 177.2MB. Free memory was 120.2MB in the beginning and 92.2MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-04-01 12:18:12,660 INFO L158 Benchmark]: TraceAbstraction took 3184.88ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 91.5MB in the beginning and 93.6MB in the end (delta: -2.1MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2023-04-01 12:18:12,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory was 132.4MB in the beginning and 132.3MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.57ms. Allocated memory is still 177.2MB. Free memory was 134.5MB in the beginning and 122.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.65ms. Allocated memory is still 177.2MB. Free memory was 122.1MB in the beginning and 120.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 654.82ms. Allocated memory is still 177.2MB. Free memory was 120.2MB in the beginning and 92.2MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3184.88ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 91.5MB in the beginning and 93.6MB in the end (delta: -2.1MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int m_i ; [L30] int t1_i ; [L31] int M_E = 2; [L32] int T1_E = 2; [L33] int E_1 = 2; [L449] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=0, m_pc=0, m_st=0, t1_i=0, t1_pc=0, t1_st=0] [L453] CALL init_model() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=0, m_pc=0, m_st=0, t1_i=0, t1_pc=0, t1_st=0] [L364] m_i = 1 [L365] t1_i = 1 [L453] RET init_model() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L454] CALL start_simulation() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L390] int kernel_st ; [L391] int tmp ; [L392] int tmp___0 ; [L396] kernel_st = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L397] FCALL update_channels() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL init_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L161] COND TRUE m_i == 1 [L162] m_st = 0 [L166] COND TRUE t1_i == 1 [L167] t1_st = 0 [L398] RET init_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L399] CALL fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(M_E == 0) [L255] COND FALSE !(T1_E == 0) [L260] COND FALSE !(E_1 == 0) [L399] RET fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L400] CALL activate_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L293] int tmp ; [L294] int tmp___0 ; VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L298] CALL, EXPR is_master_triggered() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L112] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L115] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L125] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, is_master_triggered()=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L306] CALL, EXPR is_transmit1_triggered() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L131] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L134] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L144] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, is_transmit1_triggered()=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L306] tmp___0 = is_transmit1_triggered() [L308] COND FALSE !(\read(tmp___0)) [L400] RET activate_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L401] CALL reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(M_E == 1) [L278] COND FALSE !(T1_E == 1) [L283] COND FALSE !(E_1 == 1) [L401] RET reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L404] COND TRUE 1 [L407] kernel_st = 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, kernel_st=1, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L408] CALL eval() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L197] int tmp ; VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, exists_runnable_thread()=1, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, tmp=1] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0] [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L231] CALL transmit1() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1] [L82] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1] [L93] COND TRUE 1 [L95] t1_pc = 1 [L96] t1_st = 2 [L231] RET transmit1() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, exists_runnable_thread()=1, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND TRUE \read(tmp_ndt_1) [L216] m_st = 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1] [L217] CALL master() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L41] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L52] COND TRUE 1 [L55] E_1 = 1 VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L56] CALL immediate_notify() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L322] CALL activate_threads() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L293] int tmp ; [L294] int tmp___0 ; VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L298] CALL, EXPR is_master_triggered() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L112] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L115] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L125] __retres1 = 0 VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, is_master_triggered()=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L306] CALL, EXPR is_transmit1_triggered() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L131] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L134] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L135] COND TRUE E_1 == 1 [L136] __retres1 = 1 VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=1, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, is_transmit1_triggered()=1, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L306] tmp___0 = is_transmit1_triggered() [L308] COND TRUE \read(tmp___0) [L309] t1_st = 0 [L322] RET activate_threads() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L56] RET immediate_notify() VAL [E_1=1, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L57] E_1 = 2 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L60] COND TRUE 1 [L62] m_pc = 1 [L63] m_st = 2 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0] [L217] RET master() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1] [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1] [L231] CALL transmit1() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L82] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L85] COND TRUE t1_pc == 1 VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L101] CALL error() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L21] reach_error() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 854 mSDsluCounter, 1295 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 599 mSDsCounter, 252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 863 IncrementalHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 252 mSolverCounterUnsat, 696 mSDtfsCounter, 863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=564occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 142 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 40/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-01 12:18:12,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...