./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:30:37,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:30:37,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:30:37,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:30:37,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:30:37,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:30:37,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:30:37,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:30:37,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:30:37,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:30:37,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:30:37,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:30:37,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:30:37,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:30:37,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:30:37,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:30:37,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:30:37,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:30:37,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:30:37,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:30:37,793 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:30:37,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:30:37,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:30:37,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:30:37,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:30:37,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:30:37,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:30:37,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:30:37,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:30:37,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:30:37,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:30:37,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:30:37,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:30:37,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:30:37,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:30:37,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:30:37,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:30:37,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:30:37,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:30:37,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:30:37,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:30:37,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:30:37,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:30:37,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:30:37,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:30:37,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:30:37,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:30:37,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:30:37,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:30:37,832 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:30:37,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:30:37,832 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:30:37,832 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:30:37,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:30:37,833 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:30:37,833 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:30:37,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:30:37,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:30:37,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:30:37,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:30:37,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:30:37,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:30:37,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:30:37,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:30:37,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:30:37,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:30:37,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:30:37,835 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:30:37,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:30:37,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:30:37,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:30:37,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:30:37,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:30:37,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:30:37,838 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:30:37,838 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 [2022-07-23 15:30:38,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:30:38,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:30:38,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:30:38,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:30:38,133 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:30:38,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2022-07-23 15:30:38,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6834b8c/3ebe0631ad3b470498576946ea6ecae0/FLAG909719edc [2022-07-23 15:30:38,612 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:30:38,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2022-07-23 15:30:38,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6834b8c/3ebe0631ad3b470498576946ea6ecae0/FLAG909719edc [2022-07-23 15:30:38,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6834b8c/3ebe0631ad3b470498576946ea6ecae0 [2022-07-23 15:30:39,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:30:39,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:30:39,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:30:39,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:30:39,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:30:39,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:30:38" (1/1) ... [2022-07-23 15:30:39,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4323c517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39, skipping insertion in model container [2022-07-23 15:30:39,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:30:38" (1/1) ... [2022-07-23 15:30:39,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:30:39,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:30:39,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c[671,684] [2022-07-23 15:30:39,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:30:39,265 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:30:39,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c[671,684] [2022-07-23 15:30:39,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:30:39,317 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:30:39,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39 WrapperNode [2022-07-23 15:30:39,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:30:39,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:30:39,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:30:39,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:30:39,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,373 INFO L137 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 35, calls inlined = 62, statements flattened = 813 [2022-07-23 15:30:39,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:30:39,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:30:39,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:30:39,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:30:39,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:30:39,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:30:39,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:30:39,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:30:39,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (1/1) ... [2022-07-23 15:30:39,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:30:39,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:30:39,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:30:39,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 15:30:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:30:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:30:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:30:39,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:30:39,564 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:30:39,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:30:40,102 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:30:40,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:30:40,117 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-23 15:30:40,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:30:40 BoogieIcfgContainer [2022-07-23 15:30:40,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:30:40,121 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:30:40,122 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:30:40,125 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:30:40,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:30:40,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:30:38" (1/3) ... [2022-07-23 15:30:40,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dc366e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:30:40, skipping insertion in model container [2022-07-23 15:30:40,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:30:40,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:30:39" (2/3) ... [2022-07-23 15:30:40,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dc366e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:30:40, skipping insertion in model container [2022-07-23 15:30:40,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:30:40,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:30:40" (3/3) ... [2022-07-23 15:30:40,129 INFO L354 chiAutomizerObserver]: Analyzing ICFG token_ring.03.cil-2.c [2022-07-23 15:30:40,182 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:30:40,183 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:30:40,183 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:30:40,183 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:30:40,183 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:30:40,183 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:30:40,184 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:30:40,184 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:30:40,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 324 states, 323 states have (on average 1.5356037151702786) internal successors, (496), 323 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 265 [2022-07-23 15:30:40,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:40,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:40,235 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:40,235 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:40,235 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:30:40,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 324 states, 323 states have (on average 1.5356037151702786) internal successors, (496), 323 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 265 [2022-07-23 15:30:40,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:40,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:40,255 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:40,255 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:40,263 INFO L752 eck$LassoCheckResult]: Stem: 313#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 214#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 220#L641true assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 307#L285true assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 111#L292true assume !(1 == ~m_i~0);~m_st~0 := 2; 221#L292-2true assume 1 == ~t1_i~0;~t1_st~0 := 0; 203#L297-1true assume !(1 == ~t2_i~0);~t2_st~0 := 2; 186#L302-1true assume !(1 == ~t3_i~0);~t3_st~0 := 2; 193#L307-1true assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 253#L429true assume !(0 == ~M_E~0); 55#L429-2true assume !(0 == ~T1_E~0); 143#L434-1true assume 0 == ~T2_E~0;~T2_E~0 := 1; 222#L439-1true assume !(0 == ~T3_E~0); 168#L444-1true assume !(0 == ~E_M~0); 276#L449-1true assume !(0 == ~E_1~0); 58#L454-1true assume !(0 == ~E_2~0); 300#L459-1true assume !(0 == ~E_3~0); 37#L464-1true assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 293#L208true assume 1 == ~m_pc~0; 298#L209true assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 323#L219true is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 75#L220true activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 47#L531true assume !(0 != activate_threads_~tmp~1#1); 132#L531-2true assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 116#L227true assume !(1 == ~t1_pc~0); 46#L227-2true is_transmit1_triggered_~__retres1~1#1 := 0; 194#L238true is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 196#L239true activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 57#L539true assume !(0 != activate_threads_~tmp___0~0#1); 138#L539-2true assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 76#L246true assume 1 == ~t2_pc~0; 129#L247true assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 148#L257true is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 201#L258true activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 207#L547true assume !(0 != activate_threads_~tmp___1~0#1); 231#L547-2true assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 82#L265true assume !(1 == ~t3_pc~0); 308#L265-2true is_transmit3_triggered_~__retres1~3#1 := 0; 3#L276true is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 151#L277true activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 319#L555true assume !(0 != activate_threads_~tmp___2~0#1); 63#L555-2true assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 198#L477true assume !(1 == ~M_E~0); 260#L477-2true assume !(1 == ~T1_E~0); 215#L482-1true assume 1 == ~T2_E~0;~T2_E~0 := 2; 166#L487-1true assume !(1 == ~T3_E~0); 249#L492-1true assume !(1 == ~E_M~0); 40#L497-1true assume !(1 == ~E_1~0); 137#L502-1true assume !(1 == ~E_2~0); 28#L507-1true assume !(1 == ~E_3~0); 114#L512-1true assume { :end_inline_reset_delta_events } true; 190#L678-2true [2022-07-23 15:30:40,272 INFO L754 eck$LassoCheckResult]: Loop: 190#L678-2true assume !false; 281#L679true start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 139#L404true assume false; 4#L419true assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 62#L285-1true assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 262#L429-3true assume 0 == ~M_E~0;~M_E~0 := 1; 325#L429-5true assume 0 == ~T1_E~0;~T1_E~0 := 1; 188#L434-3true assume 0 == ~T2_E~0;~T2_E~0 := 1; 229#L439-3true assume 0 == ~T3_E~0;~T3_E~0 := 1; 60#L444-3true assume 0 == ~E_M~0;~E_M~0 := 1; 70#L449-3true assume 0 == ~E_1~0;~E_1~0 := 1; 94#L454-3true assume 0 == ~E_2~0;~E_2~0 := 1; 233#L459-3true assume !(0 == ~E_3~0); 59#L464-3true assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 245#L208-15true assume 1 == ~m_pc~0; 278#L209-5true assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 242#L219-5true is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 51#L220-5true activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 152#L531-15true assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 71#L531-17true assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 285#L227-15true assume 1 == ~t1_pc~0; 314#L228-5true assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 234#L238-5true is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 18#L239-5true activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 204#L539-15true assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 185#L539-17true assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 169#L246-15true assume 1 == ~t2_pc~0; 9#L247-5true assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 247#L257-5true is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 287#L258-5true activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 310#L547-15true assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 52#L547-17true assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 199#L265-15true assume 1 == ~t3_pc~0; 100#L266-5true assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 125#L276-5true is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 89#L277-5true activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 86#L555-15true assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 211#L555-17true assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 252#L477-3true assume 1 == ~M_E~0;~M_E~0 := 2; 175#L477-5true assume 1 == ~T1_E~0;~T1_E~0 := 2; 259#L482-3true assume !(1 == ~T2_E~0); 95#L487-3true assume 1 == ~T3_E~0;~T3_E~0 := 2; 50#L492-3true assume 1 == ~E_M~0;~E_M~0 := 2; 284#L497-3true assume 1 == ~E_1~0;~E_1~0 := 2; 136#L502-3true assume 1 == ~E_2~0;~E_2~0 := 2; 181#L507-3true assume 1 == ~E_3~0;~E_3~0 := 2; 108#L512-3true assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 31#L320-1true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 12#L342-1true exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 53#L343-1true start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 206#L697true assume !(0 == start_simulation_~tmp~3#1); 2#L697-2true assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 250#L320-2true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 80#L342-2true exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 69#L343-2true stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 322#L652true assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 195#L659true stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 274#L660true start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 81#L710true assume !(0 != start_simulation_~tmp___0~1#1); 190#L678-2true [2022-07-23 15:30:40,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:40,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1917692997, now seen corresponding path program 1 times [2022-07-23 15:30:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845881] [2022-07-23 15:30:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:40,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:40,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845881] [2022-07-23 15:30:40,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:40,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:40,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:40,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793557297] [2022-07-23 15:30:40,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:40,468 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash -292243017, now seen corresponding path program 1 times [2022-07-23 15:30:40,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:40,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181772149] [2022-07-23 15:30:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:40,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:40,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181772149] [2022-07-23 15:30:40,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181772149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:40,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:40,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 15:30:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690269883] [2022-07-23 15:30:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:40,531 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:40,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:40,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:40,563 INFO L87 Difference]: Start difference. First operand has 324 states, 323 states have (on average 1.5356037151702786) internal successors, (496), 323 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:40,621 INFO L93 Difference]: Finished difference Result 323 states and 481 transitions. [2022-07-23 15:30:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:40,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 323 states and 481 transitions. [2022-07-23 15:30:40,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:40,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 323 states to 318 states and 476 transitions. [2022-07-23 15:30:40,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-07-23 15:30:40,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-07-23 15:30:40,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 476 transitions. [2022-07-23 15:30:40,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:40,657 INFO L369 hiAutomatonCegarLoop]: Abstraction has 318 states and 476 transitions. [2022-07-23 15:30:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 476 transitions. [2022-07-23 15:30:40,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-07-23 15:30:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.4968553459119496) internal successors, (476), 317 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 476 transitions. [2022-07-23 15:30:40,714 INFO L392 hiAutomatonCegarLoop]: Abstraction has 318 states and 476 transitions. [2022-07-23 15:30:40,714 INFO L374 stractBuchiCegarLoop]: Abstraction has 318 states and 476 transitions. [2022-07-23 15:30:40,714 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:30:40,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 476 transitions. [2022-07-23 15:30:40,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:40,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:40,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:40,721 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:40,721 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:40,721 INFO L752 eck$LassoCheckResult]: Stem: 973#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 942#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 943#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 947#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 847#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 848#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 934#L297-1 assume !(1 == ~t2_i~0);~t2_st~0 := 2; 919#L302-1 assume !(1 == ~t3_i~0);~t3_st~0 := 2; 920#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 927#L429 assume !(0 == ~M_E~0); 756#L429-2 assume !(0 == ~T1_E~0); 757#L434-1 assume 0 == ~T2_E~0;~T2_E~0 := 1; 878#L439-1 assume !(0 == ~T3_E~0); 900#L444-1 assume !(0 == ~E_M~0); 901#L449-1 assume !(0 == ~E_1~0); 762#L454-1 assume !(0 == ~E_2~0); 763#L459-1 assume !(0 == ~E_3~0); 723#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 724#L208 assume 1 == ~m_pc~0; 969#L209 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 971#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 792#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 743#L531 assume !(0 != activate_threads_~tmp~1#1); 744#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 853#L227 assume !(1 == ~t1_pc~0); 741#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 742#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 928#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 760#L539 assume !(0 != activate_threads_~tmp___0~0#1); 761#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 793#L246 assume 1 == ~t2_pc~0; 794#L247 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 866#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 881#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 933#L547 assume !(0 != activate_threads_~tmp___1~0#1); 938#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 803#L265 assume !(1 == ~t3_pc~0); 685#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 658#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 659#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 883#L555 assume !(0 != activate_threads_~tmp___2~0#1); 775#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 776#L477 assume !(1 == ~M_E~0); 932#L477-2 assume !(1 == ~T1_E~0); 944#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 895#L487-1 assume !(1 == ~T3_E~0); 896#L492-1 assume !(1 == ~E_M~0); 731#L497-1 assume !(1 == ~E_1~0); 732#L502-1 assume !(1 == ~E_2~0); 710#L507-1 assume !(1 == ~E_3~0); 711#L512-1 assume { :end_inline_reset_delta_events } true; 800#L678-2 [2022-07-23 15:30:40,722 INFO L754 eck$LassoCheckResult]: Loop: 800#L678-2 assume !false; 925#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 689#L404 assume !false; 852#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 833#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 695#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 727#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 780#L357 assume !(0 != eval_~tmp~0#1); 660#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 661#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 771#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 962#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 921#L434-3 assume 0 == ~T2_E~0;~T2_E~0 := 1; 922#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 769#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 770#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 787#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 819#L459-3 assume !(0 == ~E_3~0); 764#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 765#L208-15 assume !(1 == ~m_pc~0); 906#L208-17 is_master_triggered_~__retres1~0#1 := 0; 907#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 751#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 752#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 788#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 789#L227-15 assume !(1 == ~t1_pc~0); 965#L227-17 is_transmit1_triggered_~__retres1~1#1 := 0; 952#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 686#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 687#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 917#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 902#L246-15 assume 1 == ~t2_pc~0; 666#L247-5 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 667#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 958#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 966#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 753#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 754#L265-15 assume 1 == ~t3_pc~0; 828#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 830#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 811#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 806#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 807#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 940#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 908#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 909#L482-3 assume !(1 == ~T2_E~0); 818#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 747#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 748#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 872#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 873#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 842#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 714#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 675#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 676#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 755#L697 assume !(0 == start_simulation_~tmp~3#1); 656#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 657#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 798#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 783#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 784#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 929#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 930#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 799#L710 assume !(0 != start_simulation_~tmp___0~1#1); 800#L678-2 [2022-07-23 15:30:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2024185917, now seen corresponding path program 1 times [2022-07-23 15:30:40,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:40,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867987564] [2022-07-23 15:30:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:40,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:40,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:40,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867987564] [2022-07-23 15:30:40,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867987564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:40,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:40,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:40,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895735304] [2022-07-23 15:30:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:40,786 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:40,787 INFO L85 PathProgramCache]: Analyzing trace with hash -494948474, now seen corresponding path program 1 times [2022-07-23 15:30:40,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:40,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7916472] [2022-07-23 15:30:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:40,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:40,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7916472] [2022-07-23 15:30:40,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7916472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:40,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:40,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:40,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615587703] [2022-07-23 15:30:40,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:40,872 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:40,873 INFO L87 Difference]: Start difference. First operand 318 states and 476 transitions. cyclomatic complexity: 159 Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:40,900 INFO L93 Difference]: Finished difference Result 318 states and 475 transitions. [2022-07-23 15:30:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:40,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 475 transitions. [2022-07-23 15:30:40,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:40,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 475 transitions. [2022-07-23 15:30:40,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-07-23 15:30:40,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-07-23 15:30:40,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 475 transitions. [2022-07-23 15:30:40,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:40,913 INFO L369 hiAutomatonCegarLoop]: Abstraction has 318 states and 475 transitions. [2022-07-23 15:30:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 475 transitions. [2022-07-23 15:30:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-07-23 15:30:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.4937106918238994) internal successors, (475), 317 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 475 transitions. [2022-07-23 15:30:40,922 INFO L392 hiAutomatonCegarLoop]: Abstraction has 318 states and 475 transitions. [2022-07-23 15:30:40,923 INFO L374 stractBuchiCegarLoop]: Abstraction has 318 states and 475 transitions. [2022-07-23 15:30:40,924 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:30:40,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 475 transitions. [2022-07-23 15:30:40,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:40,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:40,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:40,932 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:40,933 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:40,933 INFO L752 eck$LassoCheckResult]: Stem: 1616#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 1586#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 1587#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 1590#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 1493#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 1494#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 1577#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 1562#L302-1 assume !(1 == ~t3_i~0);~t3_st~0 := 2; 1563#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 1570#L429 assume !(0 == ~M_E~0); 1399#L429-2 assume !(0 == ~T1_E~0); 1400#L434-1 assume 0 == ~T2_E~0;~T2_E~0 := 1; 1521#L439-1 assume !(0 == ~T3_E~0); 1543#L444-1 assume !(0 == ~E_M~0); 1544#L449-1 assume !(0 == ~E_1~0); 1407#L454-1 assume !(0 == ~E_2~0); 1408#L459-1 assume !(0 == ~E_3~0); 1366#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 1367#L208 assume 1 == ~m_pc~0; 1612#L209 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 1614#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 1435#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 1386#L531 assume !(0 != activate_threads_~tmp~1#1); 1387#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 1497#L227 assume !(1 == ~t1_pc~0); 1384#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 1385#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 1571#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 1403#L539 assume !(0 != activate_threads_~tmp___0~0#1); 1404#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 1436#L246 assume 1 == ~t2_pc~0; 1437#L247 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 1509#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 1524#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 1576#L547 assume !(0 != activate_threads_~tmp___1~0#1); 1581#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 1446#L265 assume !(1 == ~t3_pc~0); 1328#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 1301#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 1302#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 1526#L555 assume !(0 != activate_threads_~tmp___2~0#1); 1415#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 1416#L477 assume !(1 == ~M_E~0); 1575#L477-2 assume !(1 == ~T1_E~0); 1585#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 1538#L487-1 assume !(1 == ~T3_E~0); 1539#L492-1 assume !(1 == ~E_M~0); 1371#L497-1 assume !(1 == ~E_1~0); 1372#L502-1 assume !(1 == ~E_2~0); 1353#L507-1 assume !(1 == ~E_3~0); 1354#L512-1 assume { :end_inline_reset_delta_events } true; 1443#L678-2 [2022-07-23 15:30:40,934 INFO L754 eck$LassoCheckResult]: Loop: 1443#L678-2 assume !false; 1566#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 1332#L404 assume !false; 1495#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 1471#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 1338#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 1370#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 1422#L357 assume !(0 != eval_~tmp~0#1); 1303#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 1304#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 1414#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 1605#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 1564#L434-3 assume 0 == ~T2_E~0;~T2_E~0 := 1; 1565#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 1412#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 1413#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 1428#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 1461#L459-3 assume !(0 == ~E_3~0); 1405#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 1406#L208-15 assume 1 == ~m_pc~0; 1600#L209-5 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 1550#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 1394#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 1395#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 1429#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 1430#L227-15 assume !(1 == ~t1_pc~0); 1607#L227-17 is_transmit1_triggered_~__retres1~1#1 := 0; 1595#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 1329#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 1330#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 1560#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 1545#L246-15 assume 1 == ~t2_pc~0; 1313#L247-5 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 1314#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 1601#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 1610#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 1396#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 1397#L265-15 assume 1 == ~t3_pc~0; 1472#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 1474#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 1455#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 1450#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 1451#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 1583#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 1551#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 1552#L482-3 assume !(1 == ~T2_E~0); 1462#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 1392#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 1393#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 1515#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 1516#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 1485#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 1357#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 1320#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 1321#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 1398#L697 assume !(0 == start_simulation_~tmp~3#1); 1299#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 1300#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 1441#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 1426#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 1427#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 1572#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 1573#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 1442#L710 assume !(0 != start_simulation_~tmp___0~1#1); 1443#L678-2 [2022-07-23 15:30:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1377295041, now seen corresponding path program 1 times [2022-07-23 15:30:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992742578] [2022-07-23 15:30:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:40,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:40,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992742578] [2022-07-23 15:30:40,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992742578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:40,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:40,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:40,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225115803] [2022-07-23 15:30:40,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,000 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash 378529221, now seen corresponding path program 1 times [2022-07-23 15:30:41,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669322570] [2022-07-23 15:30:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669322570] [2022-07-23 15:30:41,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669322570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146111467] [2022-07-23 15:30:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,090 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:41,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:41,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:41,091 INFO L87 Difference]: Start difference. First operand 318 states and 475 transitions. cyclomatic complexity: 158 Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:41,099 INFO L93 Difference]: Finished difference Result 318 states and 474 transitions. [2022-07-23 15:30:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:41,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 474 transitions. [2022-07-23 15:30:41,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:41,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 474 transitions. [2022-07-23 15:30:41,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-07-23 15:30:41,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-07-23 15:30:41,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 474 transitions. [2022-07-23 15:30:41,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:41,105 INFO L369 hiAutomatonCegarLoop]: Abstraction has 318 states and 474 transitions. [2022-07-23 15:30:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 474 transitions. [2022-07-23 15:30:41,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-07-23 15:30:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.490566037735849) internal successors, (474), 317 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 474 transitions. [2022-07-23 15:30:41,111 INFO L392 hiAutomatonCegarLoop]: Abstraction has 318 states and 474 transitions. [2022-07-23 15:30:41,111 INFO L374 stractBuchiCegarLoop]: Abstraction has 318 states and 474 transitions. [2022-07-23 15:30:41,111 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 15:30:41,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 474 transitions. [2022-07-23 15:30:41,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 263 [2022-07-23 15:30:41,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:41,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:41,115 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:41,115 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:41,116 INFO L752 eck$LassoCheckResult]: Stem: 2259#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 2228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 2229#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 2233#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 2131#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 2132#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 2220#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 2204#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 2205#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 2213#L429 assume !(0 == ~M_E~0); 2042#L429-2 assume !(0 == ~T1_E~0); 2043#L434-1 assume 0 == ~T2_E~0;~T2_E~0 := 1; 2163#L439-1 assume !(0 == ~T3_E~0); 2186#L444-1 assume !(0 == ~E_M~0); 2187#L449-1 assume !(0 == ~E_1~0); 2048#L454-1 assume !(0 == ~E_2~0); 2049#L459-1 assume !(0 == ~E_3~0); 2009#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 2010#L208 assume 1 == ~m_pc~0; 2255#L209 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 2257#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2077#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 2029#L531 assume !(0 != activate_threads_~tmp~1#1); 2030#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 2139#L227 assume !(1 == ~t1_pc~0); 2027#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 2028#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 2214#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 2046#L539 assume !(0 != activate_threads_~tmp___0~0#1); 2047#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 2078#L246 assume 1 == ~t2_pc~0; 2079#L247 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 2152#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 2167#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 2219#L547 assume !(0 != activate_threads_~tmp___1~0#1); 2223#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 2087#L265 assume !(1 == ~t3_pc~0); 1971#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 1944#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 1945#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 2169#L555 assume !(0 != activate_threads_~tmp___2~0#1); 2058#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 2059#L477 assume !(1 == ~M_E~0); 2218#L477-2 assume !(1 == ~T1_E~0); 2230#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 2181#L487-1 assume !(1 == ~T3_E~0); 2182#L492-1 assume !(1 == ~E_M~0); 2014#L497-1 assume !(1 == ~E_1~0); 2015#L502-1 assume !(1 == ~E_2~0); 1996#L507-1 assume !(1 == ~E_3~0); 1997#L512-1 assume { :end_inline_reset_delta_events } true; 2086#L678-2 [2022-07-23 15:30:41,117 INFO L754 eck$LassoCheckResult]: Loop: 2086#L678-2 assume !false; 2209#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 1975#L404 assume !false; 2138#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 2114#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 1981#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 2013#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 2065#L357 assume !(0 != eval_~tmp~0#1); 1946#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 1947#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 2057#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 2248#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 2207#L434-3 assume 0 == ~T2_E~0;~T2_E~0 := 1; 2208#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 2055#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 2056#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 2071#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 2104#L459-3 assume !(0 == ~E_3~0); 2050#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 2051#L208-15 assume !(1 == ~m_pc~0); 2192#L208-17 is_master_triggered_~__retres1~0#1 := 0; 2193#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2037#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 2038#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 2072#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 2073#L227-15 assume !(1 == ~t1_pc~0); 2250#L227-17 is_transmit1_triggered_~__retres1~1#1 := 0; 2238#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 1972#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 1973#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 2203#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 2188#L246-15 assume 1 == ~t2_pc~0; 1956#L247-5 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 1957#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 2244#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 2253#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 2039#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 2040#L265-15 assume 1 == ~t3_pc~0; 2115#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 2117#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 2098#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 2093#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 2094#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 2226#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 2194#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 2195#L482-3 assume !(1 == ~T2_E~0); 2105#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 2035#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 2036#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 2158#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 2159#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 2129#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 2000#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 1963#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 1964#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 2041#L697 assume !(0 == start_simulation_~tmp~3#1); 1942#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 1943#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 2084#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 2069#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 2070#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 2215#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 2216#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 2085#L710 assume !(0 != start_simulation_~tmp___0~1#1); 2086#L678-2 [2022-07-23 15:30:41,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash -868284413, now seen corresponding path program 1 times [2022-07-23 15:30:41,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481142425] [2022-07-23 15:30:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481142425] [2022-07-23 15:30:41,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481142425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507769385] [2022-07-23 15:30:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,177 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:41,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,177 INFO L85 PathProgramCache]: Analyzing trace with hash -494948474, now seen corresponding path program 2 times [2022-07-23 15:30:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985704419] [2022-07-23 15:30:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985704419] [2022-07-23 15:30:41,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985704419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732986915] [2022-07-23 15:30:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,222 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 15:30:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 15:30:41,223 INFO L87 Difference]: Start difference. First operand 318 states and 474 transitions. cyclomatic complexity: 157 Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:41,279 INFO L93 Difference]: Finished difference Result 551 states and 816 transitions. [2022-07-23 15:30:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 15:30:41,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 551 states and 816 transitions. [2022-07-23 15:30:41,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 488 [2022-07-23 15:30:41,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 551 states to 551 states and 816 transitions. [2022-07-23 15:30:41,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 551 [2022-07-23 15:30:41,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 551 [2022-07-23 15:30:41,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 551 states and 816 transitions. [2022-07-23 15:30:41,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:41,289 INFO L369 hiAutomatonCegarLoop]: Abstraction has 551 states and 816 transitions. [2022-07-23 15:30:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states and 816 transitions. [2022-07-23 15:30:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2022-07-23 15:30:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 551 states have (on average 1.4809437386569873) internal successors, (816), 550 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 816 transitions. [2022-07-23 15:30:41,301 INFO L392 hiAutomatonCegarLoop]: Abstraction has 551 states and 816 transitions. [2022-07-23 15:30:41,301 INFO L374 stractBuchiCegarLoop]: Abstraction has 551 states and 816 transitions. [2022-07-23 15:30:41,301 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 15:30:41,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 551 states and 816 transitions. [2022-07-23 15:30:41,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 488 [2022-07-23 15:30:41,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:41,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:41,307 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:41,307 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:41,307 INFO L752 eck$LassoCheckResult]: Stem: 3168#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 3123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 3124#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 3129#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 3013#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 3014#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 3115#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 3096#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 3097#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 3106#L429 assume !(0 == ~M_E~0); 2922#L429-2 assume !(0 == ~T1_E~0); 2923#L434-1 assume !(0 == ~T2_E~0); 3051#L439-1 assume !(0 == ~T3_E~0); 3075#L444-1 assume !(0 == ~E_M~0); 3076#L449-1 assume !(0 == ~E_1~0); 2928#L454-1 assume !(0 == ~E_2~0); 2929#L459-1 assume !(0 == ~E_3~0); 2888#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 2889#L208 assume 1 == ~m_pc~0; 3162#L209 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 3164#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2958#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 2909#L531 assume !(0 != activate_threads_~tmp~1#1); 2910#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 3023#L227 assume !(1 == ~t1_pc~0); 2907#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 2908#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 3107#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 2926#L539 assume !(0 != activate_threads_~tmp___0~0#1); 2927#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 2959#L246 assume 1 == ~t2_pc~0; 2960#L247 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 3038#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 3055#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 3114#L547 assume !(0 != activate_threads_~tmp___1~0#1); 3118#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 2968#L265 assume !(1 == ~t3_pc~0); 2850#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 2823#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 2824#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 3057#L555 assume !(0 != activate_threads_~tmp___2~0#1); 2938#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 2939#L477 assume 1 == ~M_E~0;~M_E~0 := 2; 3111#L477-2 assume !(1 == ~T1_E~0); 3230#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 3126#L487-1 assume !(1 == ~T3_E~0); 3228#L492-1 assume !(1 == ~E_M~0); 3227#L497-1 assume !(1 == ~E_1~0); 3225#L502-1 assume !(1 == ~E_2~0); 3223#L507-1 assume !(1 == ~E_3~0); 3020#L512-1 assume { :end_inline_reset_delta_events } true; 2967#L678-2 [2022-07-23 15:30:41,308 INFO L754 eck$LassoCheckResult]: Loop: 2967#L678-2 assume !false; 3101#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 2854#L404 assume !false; 3021#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 3022#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 2892#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 2893#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 3156#L357 assume !(0 != eval_~tmp~0#1); 2825#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 2826#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 2937#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 3169#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 3099#L434-3 assume !(0 == ~T2_E~0); 3100#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 2935#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 2936#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 2952#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 2985#L459-3 assume !(0 == ~E_3~0); 2930#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 2931#L208-15 assume 1 == ~m_pc~0; 3142#L209-5 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 3084#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2917#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 2918#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 2953#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 2954#L227-15 assume !(1 == ~t1_pc~0); 3154#L227-17 is_transmit1_triggered_~__retres1~1#1 := 0; 3136#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 2851#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 2852#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 3095#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 3077#L246-15 assume 1 == ~t2_pc~0; 2835#L247-5 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 2836#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 3143#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 3160#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 2919#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 2920#L265-15 assume 1 == ~t3_pc~0; 2996#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 2998#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 2979#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 2974#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 2975#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 3121#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 3085#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 3086#L482-3 assume !(1 == ~T2_E~0); 2986#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 2915#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 2916#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 3044#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 3045#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 3011#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 2879#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 2842#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 2843#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 2921#L697 assume !(0 == start_simulation_~tmp~3#1); 2821#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 2822#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 3245#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 3243#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 3241#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 3239#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 3237#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 2966#L710 assume !(0 != start_simulation_~tmp___0~1#1); 2967#L678-2 [2022-07-23 15:30:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1374817215, now seen corresponding path program 1 times [2022-07-23 15:30:41,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566510093] [2022-07-23 15:30:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566510093] [2022-07-23 15:30:41,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566510093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 15:30:41,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590817021] [2022-07-23 15:30:41,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,362 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1916869251, now seen corresponding path program 1 times [2022-07-23 15:30:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681581083] [2022-07-23 15:30:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681581083] [2022-07-23 15:30:41,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681581083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:41,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285833632] [2022-07-23 15:30:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,442 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:41,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:41,443 INFO L87 Difference]: Start difference. First operand 551 states and 816 transitions. cyclomatic complexity: 267 Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:41,506 INFO L93 Difference]: Finished difference Result 1021 states and 1489 transitions. [2022-07-23 15:30:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:41,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1021 states and 1489 transitions. [2022-07-23 15:30:41,513 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 957 [2022-07-23 15:30:41,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1021 states to 1021 states and 1489 transitions. [2022-07-23 15:30:41,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1021 [2022-07-23 15:30:41,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1021 [2022-07-23 15:30:41,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1021 states and 1489 transitions. [2022-07-23 15:30:41,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:41,520 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1021 states and 1489 transitions. [2022-07-23 15:30:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states and 1489 transitions. [2022-07-23 15:30:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 967. [2022-07-23 15:30:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 967 states have (on average 1.4632885211995863) internal successors, (1415), 966 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1415 transitions. [2022-07-23 15:30:41,538 INFO L392 hiAutomatonCegarLoop]: Abstraction has 967 states and 1415 transitions. [2022-07-23 15:30:41,538 INFO L374 stractBuchiCegarLoop]: Abstraction has 967 states and 1415 transitions. [2022-07-23 15:30:41,538 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-23 15:30:41,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 967 states and 1415 transitions. [2022-07-23 15:30:41,542 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 903 [2022-07-23 15:30:41,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:41,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:41,543 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:41,544 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:41,544 INFO L752 eck$LassoCheckResult]: Stem: 4767#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 4709#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 4710#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 4715#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 4596#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 4597#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 4699#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 4677#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 4678#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 4685#L429 assume !(0 == ~M_E~0); 4502#L429-2 assume !(0 == ~T1_E~0); 4503#L434-1 assume !(0 == ~T2_E~0); 4629#L439-1 assume !(0 == ~T3_E~0); 4653#L444-1 assume !(0 == ~E_M~0); 4654#L449-1 assume !(0 == ~E_1~0); 4508#L454-1 assume !(0 == ~E_2~0); 4509#L459-1 assume !(0 == ~E_3~0); 4469#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 4470#L208 assume !(1 == ~m_pc~0); 4759#L208-2 is_master_triggered_~__retres1~0#1 := 0; 4760#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 4540#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 4489#L531 assume !(0 != activate_threads_~tmp~1#1); 4490#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 4601#L227 assume !(1 == ~t1_pc~0); 4487#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 4488#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 4686#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 4506#L539 assume !(0 != activate_threads_~tmp___0~0#1); 4507#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 4541#L246 assume 1 == ~t2_pc~0; 4542#L247 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 4617#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 4632#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 4695#L547 assume !(0 != activate_threads_~tmp___1~0#1); 4704#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 4551#L265 assume !(1 == ~t3_pc~0); 4431#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 4404#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 4405#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 4636#L555 assume !(0 != activate_threads_~tmp___2~0#1); 4520#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 4521#L477 assume 1 == ~M_E~0;~M_E~0 := 2; 4693#L477-2 assume !(1 == ~T1_E~0); 5048#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 4712#L487-1 assume !(1 == ~T3_E~0); 5045#L492-1 assume !(1 == ~E_M~0); 5043#L497-1 assume !(1 == ~E_1~0); 5041#L502-1 assume !(1 == ~E_2~0); 5040#L507-1 assume !(1 == ~E_3~0); 4890#L512-1 assume { :end_inline_reset_delta_events } true; 4888#L678-2 [2022-07-23 15:30:41,544 INFO L754 eck$LassoCheckResult]: Loop: 4888#L678-2 assume !false; 4884#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 4879#L404 assume !false; 4878#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 4876#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 4869#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 4867#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 4864#L357 assume !(0 != eval_~tmp~0#1); 4862#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 4860#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 4858#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 4772#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 4773#L434-3 assume !(0 == ~T2_E~0); 4719#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 4720#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 4535#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 4536#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 4722#L459-3 assume !(0 == ~E_3~0); 4723#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 4733#L208-15 assume !(1 == ~m_pc~0); 4734#L208-17 is_master_triggered_~__retres1~0#1 := 0; 4730#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 4731#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 4634#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 4635#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 5343#L227-15 assume 1 == ~t1_pc~0; 4768#L228-5 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 4746#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 4432#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 4433#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 4674#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 4675#L246-15 assume 1 == ~t2_pc~0; 4412#L247-5 assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 4413#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 4753#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 4754#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 4766#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 4690#L265-15 assume !(1 == ~t3_pc~0); 4691#L265-17 is_transmit3_triggered_~__retres1~3#1 := 0; 5313#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 5314#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 4553#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 4554#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 5341#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 4664#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 4665#L482-3 assume !(1 == ~T2_E~0); 4566#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 4493#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 4494#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 4623#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 4624#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 4591#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 4460#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 4423#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 4424#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 4501#L697 assume !(0 == start_simulation_~tmp~3#1); 4538#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 4905#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 4902#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 4900#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 4898#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 4896#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 4893#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 4891#L710 assume !(0 != start_simulation_~tmp___0~1#1); 4888#L678-2 [2022-07-23 15:30:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash -201740544, now seen corresponding path program 1 times [2022-07-23 15:30:41,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249061709] [2022-07-23 15:30:41,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249061709] [2022-07-23 15:30:41,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249061709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:41,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019317445] [2022-07-23 15:30:41,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,584 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash 327802308, now seen corresponding path program 1 times [2022-07-23 15:30:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878944098] [2022-07-23 15:30:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878944098] [2022-07-23 15:30:41,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878944098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:41,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821519560] [2022-07-23 15:30:41,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,626 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:41,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:41,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 15:30:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 15:30:41,628 INFO L87 Difference]: Start difference. First operand 967 states and 1415 transitions. cyclomatic complexity: 452 Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:41,741 INFO L93 Difference]: Finished difference Result 2187 states and 3150 transitions. [2022-07-23 15:30:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 15:30:41,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2187 states and 3150 transitions. [2022-07-23 15:30:41,755 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 2054 [2022-07-23 15:30:41,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2187 states to 2187 states and 3150 transitions. [2022-07-23 15:30:41,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2187 [2022-07-23 15:30:41,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2187 [2022-07-23 15:30:41,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2187 states and 3150 transitions. [2022-07-23 15:30:41,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:41,770 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2187 states and 3150 transitions. [2022-07-23 15:30:41,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states and 3150 transitions. [2022-07-23 15:30:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1725. [2022-07-23 15:30:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1725 states have (on average 1.4533333333333334) internal successors, (2507), 1724 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2507 transitions. [2022-07-23 15:30:41,803 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1725 states and 2507 transitions. [2022-07-23 15:30:41,803 INFO L374 stractBuchiCegarLoop]: Abstraction has 1725 states and 2507 transitions. [2022-07-23 15:30:41,803 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-23 15:30:41,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1725 states and 2507 transitions. [2022-07-23 15:30:41,811 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1660 [2022-07-23 15:30:41,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:41,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:41,816 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:41,816 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:41,816 INFO L752 eck$LassoCheckResult]: Stem: 7946#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 7879#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 7880#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 7886#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 7757#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 7758#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 7869#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 7848#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 7849#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 7858#L429 assume !(0 == ~M_E~0); 7667#L429-2 assume !(0 == ~T1_E~0); 7668#L434-1 assume !(0 == ~T2_E~0); 7797#L439-1 assume !(0 == ~T3_E~0); 7825#L444-1 assume !(0 == ~E_M~0); 7826#L449-1 assume !(0 == ~E_1~0); 7673#L454-1 assume !(0 == ~E_2~0); 7674#L459-1 assume !(0 == ~E_3~0); 7634#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 7635#L208 assume !(1 == ~m_pc~0); 7935#L208-2 is_master_triggered_~__retres1~0#1 := 0; 7936#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 7705#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 7654#L531 assume !(0 != activate_threads_~tmp~1#1); 7655#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 7766#L227 assume !(1 == ~t1_pc~0); 7652#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 7653#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 7859#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 7671#L539 assume !(0 != activate_threads_~tmp___0~0#1); 7672#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 7706#L246 assume !(1 == ~t2_pc~0); 7707#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 7802#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 7803#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 7867#L547 assume !(0 != activate_threads_~tmp___1~0#1); 7873#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 7714#L265 assume !(1 == ~t3_pc~0); 7597#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 7570#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 7571#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 7806#L555 assume !(0 != activate_threads_~tmp___2~0#1); 7683#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 7684#L477 assume 1 == ~M_E~0;~M_E~0 := 2; 7863#L477-2 assume !(1 == ~T1_E~0); 7913#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 7820#L487-1 assume !(1 == ~T3_E~0); 7821#L492-1 assume !(1 == ~E_M~0); 7639#L497-1 assume !(1 == ~E_1~0); 7640#L502-1 assume !(1 == ~E_2~0); 7622#L507-1 assume !(1 == ~E_3~0); 7623#L512-1 assume { :end_inline_reset_delta_events } true; 8643#L678-2 [2022-07-23 15:30:41,817 INFO L754 eck$LassoCheckResult]: Loop: 8643#L678-2 assume !false; 8641#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 8637#L404 assume !false; 8636#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 8619#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 8615#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 8613#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 8610#L357 assume !(0 != eval_~tmp~0#1); 8611#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 8808#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 8806#L429-3 assume 0 == ~M_E~0;~M_E~0 := 1; 8804#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 8802#L434-3 assume !(0 == ~T2_E~0); 8800#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 8798#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 8795#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 8793#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 8791#L459-3 assume !(0 == ~E_3~0); 8789#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 8787#L208-15 assume !(1 == ~m_pc~0); 8786#L208-17 is_master_triggered_~__retres1~0#1 := 0; 8785#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 8784#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 8783#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 8782#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 8780#L227-15 assume 1 == ~t1_pc~0; 8777#L228-5 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 8775#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 8773#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 8771#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 8769#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 8767#L246-15 assume !(1 == ~t2_pc~0); 8415#L246-17 is_transmit2_triggered_~__retres1~2#1 := 0; 8763#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 8761#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 8759#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 8757#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 8755#L265-15 assume !(1 == ~t3_pc~0); 8753#L265-17 is_transmit3_triggered_~__retres1~3#1 := 0; 8751#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 8749#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 8747#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 8745#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 8743#L477-3 assume 1 == ~M_E~0;~M_E~0 := 2; 8723#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 8720#L482-3 assume !(1 == ~T2_E~0); 8717#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 8715#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 8713#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 8711#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 8709#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 8707#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 8704#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 8701#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 8699#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 8667#L697 assume !(0 == start_simulation_~tmp~3#1); 8665#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 8661#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 8657#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 8655#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 8653#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 8651#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 8649#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 8645#L710 assume !(0 != start_simulation_~tmp___0~1#1); 8643#L678-2 [2022-07-23 15:30:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1175229503, now seen corresponding path program 1 times [2022-07-23 15:30:41,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234533492] [2022-07-23 15:30:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234533492] [2022-07-23 15:30:41,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234533492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 15:30:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653749343] [2022-07-23 15:30:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,870 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:41,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1248755451, now seen corresponding path program 1 times [2022-07-23 15:30:41,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:41,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064405090] [2022-07-23 15:30:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:41,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:41,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:41,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064405090] [2022-07-23 15:30:41,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064405090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:41,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:41,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:41,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520672885] [2022-07-23 15:30:41,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:41,904 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:41,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:41,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:41,905 INFO L87 Difference]: Start difference. First operand 1725 states and 2507 transitions. cyclomatic complexity: 786 Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:41,936 INFO L93 Difference]: Finished difference Result 2513 states and 3650 transitions. [2022-07-23 15:30:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:41,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2513 states and 3650 transitions. [2022-07-23 15:30:41,968 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2448 [2022-07-23 15:30:41,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2513 states to 2513 states and 3650 transitions. [2022-07-23 15:30:41,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2513 [2022-07-23 15:30:41,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2513 [2022-07-23 15:30:41,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2513 states and 3650 transitions. [2022-07-23 15:30:41,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:41,989 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2513 states and 3650 transitions. [2022-07-23 15:30:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states and 3650 transitions. [2022-07-23 15:30:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 1749. [2022-07-23 15:30:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1749 states have (on average 1.4562607204116638) internal successors, (2547), 1748 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2547 transitions. [2022-07-23 15:30:42,020 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1749 states and 2547 transitions. [2022-07-23 15:30:42,020 INFO L374 stractBuchiCegarLoop]: Abstraction has 1749 states and 2547 transitions. [2022-07-23 15:30:42,020 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-23 15:30:42,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1749 states and 2547 transitions. [2022-07-23 15:30:42,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1692 [2022-07-23 15:30:42,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:42,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:42,028 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:42,028 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:42,028 INFO L752 eck$LassoCheckResult]: Stem: 12170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 12118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 12119#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 12123#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 12007#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 12008#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 12108#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 12091#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 12092#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 12100#L429 assume !(0 == ~M_E~0); 11915#L429-2 assume !(0 == ~T1_E~0); 11916#L434-1 assume !(0 == ~T2_E~0); 12044#L439-1 assume !(0 == ~T3_E~0); 12069#L444-1 assume !(0 == ~E_M~0); 12070#L449-1 assume !(0 == ~E_1~0); 11921#L454-1 assume !(0 == ~E_2~0); 11922#L459-1 assume !(0 == ~E_3~0); 11881#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 11882#L208 assume !(1 == ~m_pc~0); 12162#L208-2 is_master_triggered_~__retres1~0#1 := 0; 12163#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 11953#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 11901#L531 assume !(0 != activate_threads_~tmp~1#1); 11902#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 12017#L227 assume !(1 == ~t1_pc~0); 11899#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 11900#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 12101#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 11919#L539 assume !(0 != activate_threads_~tmp___0~0#1); 11920#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 11954#L246 assume !(1 == ~t2_pc~0); 11955#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 12048#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 12049#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 12106#L547 assume !(0 != activate_threads_~tmp___1~0#1); 12112#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 11962#L265 assume !(1 == ~t3_pc~0); 11844#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 11817#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 11818#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 12051#L555 assume !(0 != activate_threads_~tmp___2~0#1); 11931#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 11932#L477 assume !(1 == ~M_E~0); 12105#L477-2 assume !(1 == ~T1_E~0); 12120#L482-1 assume 1 == ~T2_E~0;~T2_E~0 := 2; 12064#L487-1 assume !(1 == ~T3_E~0); 12065#L492-1 assume !(1 == ~E_M~0); 11886#L497-1 assume !(1 == ~E_1~0); 11887#L502-1 assume !(1 == ~E_2~0); 11869#L507-1 assume !(1 == ~E_3~0); 11870#L512-1 assume { :end_inline_reset_delta_events } true; 12015#L678-2 [2022-07-23 15:30:42,029 INFO L754 eck$LassoCheckResult]: Loop: 12015#L678-2 assume !false; 13300#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 13295#L404 assume !false; 13293#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 13289#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 13246#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 13245#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 13243#L357 assume !(0 != eval_~tmp~0#1); 13244#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 13535#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 13534#L429-3 assume !(0 == ~M_E~0); 13533#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 12094#L434-3 assume !(0 == ~T2_E~0); 12095#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 11928#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 11929#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 13507#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 13506#L459-3 assume !(0 == ~E_3~0); 13505#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 13504#L208-15 assume !(1 == ~m_pc~0); 13503#L208-17 is_master_triggered_~__retres1~0#1 := 0; 13501#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 13499#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 13497#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 13495#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 13493#L227-15 assume 1 == ~t1_pc~0; 13476#L228-5 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 13472#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 13468#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 13464#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 13461#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 12071#L246-15 assume !(1 == ~t2_pc~0); 12072#L246-17 is_transmit2_triggered_~__retres1~2#1 := 0; 12141#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 12142#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 12156#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 11911#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 11912#L265-15 assume 1 == ~t3_pc~0; 11991#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 11993#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 11974#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 11969#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 11970#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 12116#L477-3 assume !(1 == ~M_E~0); 12079#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 12080#L482-3 assume !(1 == ~T2_E~0); 11981#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 11907#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 11908#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 12037#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 12038#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 12005#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 11873#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 11836#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 11837#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 12110#L697 assume !(0 == start_simulation_~tmp~3#1); 11815#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 11816#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 11965#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 13312#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 13310#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 13308#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 13306#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 13304#L710 assume !(0 != start_simulation_~tmp___0~1#1); 12015#L678-2 [2022-07-23 15:30:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash -495171133, now seen corresponding path program 1 times [2022-07-23 15:30:42,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689808692] [2022-07-23 15:30:42,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:42,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:42,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689808692] [2022-07-23 15:30:42,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689808692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:42,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:42,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390471436] [2022-07-23 15:30:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:42,089 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1722483012, now seen corresponding path program 1 times [2022-07-23 15:30:42,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294164294] [2022-07-23 15:30:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:42,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:42,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294164294] [2022-07-23 15:30:42,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294164294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:42,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:42,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750505393] [2022-07-23 15:30:42,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:42,133 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:42,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:42,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 15:30:42,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 15:30:42,135 INFO L87 Difference]: Start difference. First operand 1749 states and 2547 transitions. cyclomatic complexity: 800 Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:42,182 INFO L93 Difference]: Finished difference Result 2507 states and 3618 transitions. [2022-07-23 15:30:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 15:30:42,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2507 states and 3618 transitions. [2022-07-23 15:30:42,197 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2448 [2022-07-23 15:30:42,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2507 states to 2507 states and 3618 transitions. [2022-07-23 15:30:42,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2507 [2022-07-23 15:30:42,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2507 [2022-07-23 15:30:42,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2507 states and 3618 transitions. [2022-07-23 15:30:42,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:42,230 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2507 states and 3618 transitions. [2022-07-23 15:30:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states and 3618 transitions. [2022-07-23 15:30:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 1749. [2022-07-23 15:30:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1749 states have (on average 1.4465408805031446) internal successors, (2530), 1748 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2530 transitions. [2022-07-23 15:30:42,264 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1749 states and 2530 transitions. [2022-07-23 15:30:42,264 INFO L374 stractBuchiCegarLoop]: Abstraction has 1749 states and 2530 transitions. [2022-07-23 15:30:42,264 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-23 15:30:42,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1749 states and 2530 transitions. [2022-07-23 15:30:42,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1692 [2022-07-23 15:30:42,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:42,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:42,271 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:42,271 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:42,272 INFO L752 eck$LassoCheckResult]: Stem: 16431#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 16382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 16383#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 16388#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 16274#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 16275#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 16371#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 16354#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 16355#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 16363#L429 assume !(0 == ~M_E~0); 16184#L429-2 assume !(0 == ~T1_E~0); 16185#L434-1 assume !(0 == ~T2_E~0); 16308#L439-1 assume !(0 == ~T3_E~0); 16333#L444-1 assume !(0 == ~E_M~0); 16334#L449-1 assume !(0 == ~E_1~0); 16190#L454-1 assume !(0 == ~E_2~0); 16191#L459-1 assume !(0 == ~E_3~0); 16151#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 16152#L208 assume !(1 == ~m_pc~0); 16422#L208-2 is_master_triggered_~__retres1~0#1 := 0; 16423#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 16222#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 16171#L531 assume !(0 != activate_threads_~tmp~1#1); 16172#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 16283#L227 assume !(1 == ~t1_pc~0); 16169#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 16170#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 16364#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 16188#L539 assume !(0 != activate_threads_~tmp___0~0#1); 16189#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 16223#L246 assume !(1 == ~t2_pc~0); 16224#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 16313#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 16314#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 16369#L547 assume !(0 != activate_threads_~tmp___1~0#1); 16375#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 16231#L265 assume !(1 == ~t3_pc~0); 16114#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 16085#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 16086#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 16316#L555 assume !(0 != activate_threads_~tmp___2~0#1); 16200#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 16201#L477 assume !(1 == ~M_E~0); 16368#L477-2 assume !(1 == ~T1_E~0); 16384#L482-1 assume !(1 == ~T2_E~0); 16328#L487-1 assume !(1 == ~T3_E~0); 16329#L492-1 assume !(1 == ~E_M~0); 16156#L497-1 assume !(1 == ~E_1~0); 16157#L502-1 assume !(1 == ~E_2~0); 16139#L507-1 assume !(1 == ~E_3~0); 16140#L512-1 assume { :end_inline_reset_delta_events } true; 16281#L678-2 [2022-07-23 15:30:42,272 INFO L754 eck$LassoCheckResult]: Loop: 16281#L678-2 assume !false; 17400#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 17395#L404 assume !false; 17393#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 17389#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 17385#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 17382#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 17380#L357 assume !(0 != eval_~tmp~0#1); 16087#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 16088#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 16199#L429-3 assume !(0 == ~M_E~0); 16407#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 16357#L434-3 assume !(0 == ~T2_E~0); 16358#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 16197#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 16198#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 17799#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 16393#L459-3 assume !(0 == ~E_3~0); 16192#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 16193#L208-15 assume !(1 == ~m_pc~0); 16340#L208-17 is_master_triggered_~__retres1~0#1 := 0; 16341#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 17746#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 17745#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 17744#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 17742#L227-15 assume 1 == ~t1_pc~0; 17739#L228-5 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 17737#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 17735#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 17733#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 17730#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 16335#L246-15 assume !(1 == ~t2_pc~0); 16106#L246-17 is_transmit2_triggered_~__retres1~2#1 := 0; 16107#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 16402#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 16420#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 16181#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 16182#L265-15 assume 1 == ~t3_pc~0; 16258#L266-5 assume 1 == ~E_3~0;is_transmit3_triggered_~__retres1~3#1 := 1; 16260#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 16241#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 16236#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 16237#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 16380#L477-3 assume !(1 == ~M_E~0); 16342#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 16343#L482-3 assume !(1 == ~T2_E~0); 16248#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 16177#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 16178#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 16303#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 16304#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 16272#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 16143#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 16104#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 16105#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 16183#L697 assume !(0 == start_simulation_~tmp~3#1); 16373#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 17415#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 17413#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 17412#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 17410#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 17408#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 17406#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 17404#L710 assume !(0 != start_simulation_~tmp___0~1#1); 16281#L678-2 [2022-07-23 15:30:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1279836229, now seen corresponding path program 1 times [2022-07-23 15:30:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744483986] [2022-07-23 15:30:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:42,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1722483012, now seen corresponding path program 2 times [2022-07-23 15:30:42,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78102561] [2022-07-23 15:30:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:42,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:42,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78102561] [2022-07-23 15:30:42,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78102561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:42,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:42,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:42,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789741613] [2022-07-23 15:30:42,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:42,341 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:42,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:30:42,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:30:42,342 INFO L87 Difference]: Start difference. First operand 1749 states and 2530 transitions. cyclomatic complexity: 783 Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:42,447 INFO L93 Difference]: Finished difference Result 3053 states and 4338 transitions. [2022-07-23 15:30:42,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 15:30:42,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3053 states and 4338 transitions. [2022-07-23 15:30:42,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2992 [2022-07-23 15:30:42,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3053 states to 3053 states and 4338 transitions. [2022-07-23 15:30:42,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3053 [2022-07-23 15:30:42,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3053 [2022-07-23 15:30:42,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3053 states and 4338 transitions. [2022-07-23 15:30:42,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:42,487 INFO L369 hiAutomatonCegarLoop]: Abstraction has 3053 states and 4338 transitions. [2022-07-23 15:30:42,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states and 4338 transitions. [2022-07-23 15:30:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1773. [2022-07-23 15:30:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1773 states have (on average 1.440496333897349) internal successors, (2554), 1772 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2554 transitions. [2022-07-23 15:30:42,523 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1773 states and 2554 transitions. [2022-07-23 15:30:42,523 INFO L374 stractBuchiCegarLoop]: Abstraction has 1773 states and 2554 transitions. [2022-07-23 15:30:42,523 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-23 15:30:42,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1773 states and 2554 transitions. [2022-07-23 15:30:42,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1716 [2022-07-23 15:30:42,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:42,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:42,529 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:42,529 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:42,530 INFO L752 eck$LassoCheckResult]: Stem: 21284#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 21216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 21217#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 21221#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 21097#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 21098#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 21206#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 21187#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 21188#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 21195#L429 assume !(0 == ~M_E~0); 21003#L429-2 assume !(0 == ~T1_E~0); 21004#L434-1 assume !(0 == ~T2_E~0); 21137#L439-1 assume !(0 == ~T3_E~0); 21164#L444-1 assume !(0 == ~E_M~0); 21165#L449-1 assume !(0 == ~E_1~0); 21011#L454-1 assume !(0 == ~E_2~0); 21012#L459-1 assume !(0 == ~E_3~0); 20969#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 20970#L208 assume !(1 == ~m_pc~0); 21272#L208-2 is_master_triggered_~__retres1~0#1 := 0; 21273#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 21041#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 20990#L531 assume !(0 != activate_threads_~tmp~1#1); 20991#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 21106#L227 assume !(1 == ~t1_pc~0); 20988#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 20989#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 21196#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 21007#L539 assume !(0 != activate_threads_~tmp___0~0#1); 21008#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 21042#L246 assume !(1 == ~t2_pc~0); 21043#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 21142#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 21143#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 21204#L547 assume !(0 != activate_threads_~tmp___1~0#1); 21209#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 21050#L265 assume !(1 == ~t3_pc~0); 20932#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 20903#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 20904#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 21148#L555 assume !(0 != activate_threads_~tmp___2~0#1); 21023#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 21024#L477 assume !(1 == ~M_E~0); 21203#L477-2 assume !(1 == ~T1_E~0); 21218#L482-1 assume !(1 == ~T2_E~0); 21159#L487-1 assume !(1 == ~T3_E~0); 21160#L492-1 assume !(1 == ~E_M~0); 20975#L497-1 assume !(1 == ~E_1~0); 20976#L502-1 assume !(1 == ~E_2~0); 20959#L507-1 assume !(1 == ~E_3~0); 20960#L512-1 assume { :end_inline_reset_delta_events } true; 21049#L678-2 [2022-07-23 15:30:42,530 INFO L754 eck$LassoCheckResult]: Loop: 21049#L678-2 assume !false; 21191#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 20936#L404 assume !false; 21104#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 21081#L320 assume !(0 == ~m_st~0); 20943#L324 assume !(0 == ~t1_st~0); 20944#L328 assume !(0 == ~t2_st~0); 21199#L332 assume !(0 == ~t3_st~0);exists_runnable_thread_~__retres1~4#1 := 0; 21200#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 22122#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 22123#L357 assume !(0 != eval_~tmp~0#1); 22538#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 21018#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 21019#L429-3 assume !(0 == ~M_E~0); 21250#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 21286#L434-3 assume !(0 == ~T2_E~0); 21225#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 21226#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 21034#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 21035#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 21229#L459-3 assume !(0 == ~E_3~0); 21230#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 21239#L208-15 assume !(1 == ~m_pc~0); 21240#L208-17 is_master_triggered_~__retres1~0#1 := 0; 21236#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 21237#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 21145#L531-15 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 21146#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 21265#L227-15 assume !(1 == ~t1_pc~0); 21266#L227-17 is_transmit1_triggered_~__retres1~1#1 := 0; 21231#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 21232#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 21205#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 21184#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 21185#L246-15 assume !(1 == ~t2_pc~0); 20924#L246-17 is_transmit2_triggered_~__retres1~2#1 := 0; 20925#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 21268#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 21269#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 21001#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 21002#L265-15 assume !(1 == ~t3_pc~0); 21201#L265-17 is_transmit3_triggered_~__retres1~3#1 := 0; 21113#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 21114#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 21055#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 21056#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 21246#L477-3 assume !(1 == ~M_E~0); 21173#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 21174#L482-3 assume !(1 == ~T2_E~0); 21069#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 20996#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 20997#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 21128#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 21129#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 21093#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 21094#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 22662#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 22660#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 22639#L697 assume !(0 == start_simulation_~tmp~3#1); 22629#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 21245#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 21047#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 21032#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 21033#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 21197#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 21198#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 21048#L710 assume !(0 != start_simulation_~tmp___0~1#1); 21049#L678-2 [2022-07-23 15:30:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1279836229, now seen corresponding path program 2 times [2022-07-23 15:30:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27551083] [2022-07-23 15:30:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:42,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,549 INFO L85 PathProgramCache]: Analyzing trace with hash 763456204, now seen corresponding path program 1 times [2022-07-23 15:30:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240579057] [2022-07-23 15:30:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:42,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:42,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240579057] [2022-07-23 15:30:42,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240579057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:42,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:42,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:30:42,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324239058] [2022-07-23 15:30:42,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:42,598 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:42,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:42,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:30:42,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:30:42,599 INFO L87 Difference]: Start difference. First operand 1773 states and 2554 transitions. cyclomatic complexity: 783 Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:42,733 INFO L93 Difference]: Finished difference Result 3467 states and 4955 transitions. [2022-07-23 15:30:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 15:30:42,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3467 states and 4955 transitions. [2022-07-23 15:30:42,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3410 [2022-07-23 15:30:42,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3467 states to 3467 states and 4955 transitions. [2022-07-23 15:30:42,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3467 [2022-07-23 15:30:42,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3467 [2022-07-23 15:30:42,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3467 states and 4955 transitions. [2022-07-23 15:30:42,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:42,772 INFO L369 hiAutomatonCegarLoop]: Abstraction has 3467 states and 4955 transitions. [2022-07-23 15:30:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states and 4955 transitions. [2022-07-23 15:30:42,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 1833. [2022-07-23 15:30:42,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1833 states have (on average 1.4168030551009274) internal successors, (2597), 1832 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2597 transitions. [2022-07-23 15:30:42,808 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1833 states and 2597 transitions. [2022-07-23 15:30:42,808 INFO L374 stractBuchiCegarLoop]: Abstraction has 1833 states and 2597 transitions. [2022-07-23 15:30:42,808 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-23 15:30:42,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1833 states and 2597 transitions. [2022-07-23 15:30:42,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1776 [2022-07-23 15:30:42,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:42,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:42,814 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:42,814 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-23 15:30:42,814 INFO L752 eck$LassoCheckResult]: Stem: 26531#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 26471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 26472#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 26476#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 26354#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 26355#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 26458#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 26439#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 26440#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 26448#L429 assume !(0 == ~M_E~0); 26257#L429-2 assume !(0 == ~T1_E~0); 26258#L434-1 assume !(0 == ~T2_E~0); 26388#L439-1 assume !(0 == ~T3_E~0); 26416#L444-1 assume !(0 == ~E_M~0); 26417#L449-1 assume !(0 == ~E_1~0); 26265#L454-1 assume !(0 == ~E_2~0); 26266#L459-1 assume !(0 == ~E_3~0); 26224#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 26225#L208 assume !(1 == ~m_pc~0); 26524#L208-2 is_master_triggered_~__retres1~0#1 := 0; 26525#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 26295#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 26244#L531 assume !(0 != activate_threads_~tmp~1#1); 26245#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 26359#L227 assume !(1 == ~t1_pc~0); 26242#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 26243#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 26449#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 26261#L539 assume !(0 != activate_threads_~tmp___0~0#1); 26262#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 26296#L246 assume !(1 == ~t2_pc~0); 26297#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 26393#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 26394#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 26457#L547 assume !(0 != activate_threads_~tmp___1~0#1); 26463#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 26306#L265 assume !(1 == ~t3_pc~0); 26185#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 26156#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 26157#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 26398#L555 assume !(0 != activate_threads_~tmp___2~0#1); 26278#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 26279#L477 assume !(1 == ~M_E~0); 26454#L477-2 assume !(1 == ~T1_E~0); 26473#L482-1 assume !(1 == ~T2_E~0); 26414#L487-1 assume !(1 == ~T3_E~0); 26415#L492-1 assume !(1 == ~E_M~0); 26229#L497-1 assume !(1 == ~E_1~0); 26230#L502-1 assume !(1 == ~E_2~0); 26212#L507-1 assume !(1 == ~E_3~0); 26213#L512-1 assume { :end_inline_reset_delta_events } true; 26356#L678-2 [2022-07-23 15:30:42,814 INFO L754 eck$LassoCheckResult]: Loop: 26356#L678-2 assume !false; 27231#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 27227#L404 assume !false; 27226#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 27224#L320 assume !(0 == ~m_st~0); 27225#L324 assume !(0 == ~t1_st~0); 27221#L328 assume !(0 == ~t2_st~0); 27222#L332 assume !(0 == ~t3_st~0);exists_runnable_thread_~__retres1~4#1 := 0; 27223#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 27075#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 27076#L357 assume !(0 != eval_~tmp~0#1); 27318#L419 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 27317#L285-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 27316#L429-3 assume !(0 == ~M_E~0); 27315#L429-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 27314#L434-3 assume !(0 == ~T2_E~0); 27313#L439-3 assume 0 == ~T3_E~0;~T3_E~0 := 1; 27312#L444-3 assume 0 == ~E_M~0;~E_M~0 := 1; 27311#L449-3 assume 0 == ~E_1~0;~E_1~0 := 1; 27310#L454-3 assume 0 == ~E_2~0;~E_2~0 := 1; 27309#L459-3 assume !(0 == ~E_3~0); 26263#L464-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 26264#L208-15 assume !(1 == ~m_pc~0); 26491#L208-17 is_master_triggered_~__retres1~0#1 := 0; 27358#L219-5 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 27357#L220-5 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 27356#L531-15 assume !(0 != activate_threads_~tmp~1#1); 27355#L531-17 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 27354#L227-15 assume 1 == ~t1_pc~0; 27352#L228-5 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 27351#L238-5 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 27350#L239-5 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 27349#L539-15 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 27348#L539-17 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 27347#L246-15 assume !(1 == ~t2_pc~0); 26878#L246-17 is_transmit2_triggered_~__retres1~2#1 := 0; 27346#L257-5 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 27345#L258-5 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 27344#L547-15 assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 27343#L547-17 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 27342#L265-15 assume !(1 == ~t3_pc~0); 27340#L265-17 is_transmit3_triggered_~__retres1~3#1 := 0; 27339#L276-5 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 27338#L277-5 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 27337#L555-15 assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 27336#L555-17 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 27335#L477-3 assume !(1 == ~M_E~0); 27159#L477-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 27334#L482-3 assume !(1 == ~T2_E~0); 27333#L487-3 assume 1 == ~T3_E~0;~T3_E~0 := 2; 27332#L492-3 assume 1 == ~E_M~0;~E_M~0 := 2; 27331#L497-3 assume 1 == ~E_1~0;~E_1~0 := 2; 27330#L502-3 assume 1 == ~E_2~0;~E_2~0 := 2; 27329#L507-3 assume 1 == ~E_3~0;~E_3~0 := 2; 27328#L512-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 27325#L320-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 27323#L342-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 27322#L343-1 start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 26460#L697 assume !(0 == start_simulation_~tmp~3#1); 26461#L697-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 27249#L320-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 27245#L342-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 27243#L343-2 stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 27241#L652 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 27239#L659 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 27237#L660 start_simulation_#t~ret16#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 27234#L710 assume !(0 != start_simulation_~tmp___0~1#1); 26356#L678-2 [2022-07-23 15:30:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1279836229, now seen corresponding path program 3 times [2022-07-23 15:30:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710236144] [2022-07-23 15:30:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,822 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:42,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2144031309, now seen corresponding path program 1 times [2022-07-23 15:30:42,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464365809] [2022-07-23 15:30:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464365809] [2022-07-23 15:30:42,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464365809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:42,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:42,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030524064] [2022-07-23 15:30:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:42,858 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:30:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:42,859 INFO L87 Difference]: Start difference. First operand 1833 states and 2597 transitions. cyclomatic complexity: 766 Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:42,903 INFO L93 Difference]: Finished difference Result 2824 states and 3942 transitions. [2022-07-23 15:30:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:42,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2824 states and 3942 transitions. [2022-07-23 15:30:42,914 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 2767 [2022-07-23 15:30:42,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2824 states to 2824 states and 3942 transitions. [2022-07-23 15:30:42,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2824 [2022-07-23 15:30:42,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2824 [2022-07-23 15:30:42,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2824 states and 3942 transitions. [2022-07-23 15:30:42,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:42,931 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2824 states and 3942 transitions. [2022-07-23 15:30:42,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states and 3942 transitions. [2022-07-23 15:30:42,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2734. [2022-07-23 15:30:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2734 states have (on average 1.3972201901975128) internal successors, (3820), 2733 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3820 transitions. [2022-07-23 15:30:42,972 INFO L392 hiAutomatonCegarLoop]: Abstraction has 2734 states and 3820 transitions. [2022-07-23 15:30:42,972 INFO L374 stractBuchiCegarLoop]: Abstraction has 2734 states and 3820 transitions. [2022-07-23 15:30:42,972 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-23 15:30:42,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2734 states and 3820 transitions. [2022-07-23 15:30:42,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 2677 [2022-07-23 15:30:42,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:42,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:42,980 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:42,980 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:30:42,980 INFO L752 eck$LassoCheckResult]: Stem: 31177#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 31117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 31118#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 31123#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 31010#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 31011#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 31107#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 31089#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 31090#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 31097#L429 assume !(0 == ~M_E~0); 30917#L429-2 assume !(0 == ~T1_E~0); 30918#L434-1 assume !(0 == ~T2_E~0); 31040#L439-1 assume !(0 == ~T3_E~0); 31065#L444-1 assume !(0 == ~E_M~0); 31066#L449-1 assume !(0 == ~E_1~0); 30925#L454-1 assume !(0 == ~E_2~0); 30926#L459-1 assume !(0 == ~E_3~0); 30883#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 30884#L208 assume !(1 == ~m_pc~0); 31167#L208-2 is_master_triggered_~__retres1~0#1 := 0; 31168#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 30954#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 30904#L531 assume !(0 != activate_threads_~tmp~1#1); 30905#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 31014#L227 assume !(1 == ~t1_pc~0); 30902#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 30903#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 31098#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 30921#L539 assume !(0 != activate_threads_~tmp___0~0#1); 30922#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 30955#L246 assume !(1 == ~t2_pc~0); 30956#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 31043#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 31044#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 31106#L547 assume !(0 != activate_threads_~tmp___1~0#1); 31112#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 30964#L265 assume !(1 == ~t3_pc~0); 30846#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 30819#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 30820#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 31047#L555 assume !(0 != activate_threads_~tmp___2~0#1); 30938#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 30939#L477 assume !(1 == ~M_E~0); 31102#L477-2 assume !(1 == ~T1_E~0); 31119#L482-1 assume !(1 == ~T2_E~0); 31063#L487-1 assume !(1 == ~T3_E~0); 31064#L492-1 assume !(1 == ~E_M~0); 30892#L497-1 assume !(1 == ~E_1~0); 30893#L502-1 assume !(1 == ~E_2~0); 30873#L507-1 assume !(1 == ~E_3~0); 30874#L512-1 assume { :end_inline_reset_delta_events } true; 31012#L678-2 assume !false; 33000#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 32996#L404 [2022-07-23 15:30:42,981 INFO L754 eck$LassoCheckResult]: Loop: 32996#L404 assume !false; 32991#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 32990#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 32985#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 32984#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 32983#L357 assume 0 != eval_~tmp~0#1; 32982#L357-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 30929#L365 assume !(0 != eval_~tmp_ndt_1~0#1); 30930#L362 assume !(0 == ~t1_st~0); 32902#L376 assume !(0 == ~t2_st~0); 32895#L390 assume !(0 == ~t3_st~0); 32996#L404 [2022-07-23 15:30:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:42,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1561976903, now seen corresponding path program 1 times [2022-07-23 15:30:42,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:42,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44610011] [2022-07-23 15:30:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,012 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:43,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash 257277008, now seen corresponding path program 1 times [2022-07-23 15:30:43,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953347041] [2022-07-23 15:30:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,027 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:43,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1138955338, now seen corresponding path program 1 times [2022-07-23 15:30:43,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693350735] [2022-07-23 15:30:43,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:43,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:43,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693350735] [2022-07-23 15:30:43,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693350735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:43,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:43,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:43,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172695303] [2022-07-23 15:30:43,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:43,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:43,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:43,131 INFO L87 Difference]: Start difference. First operand 2734 states and 3820 transitions. cyclomatic complexity: 1089 Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:43,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:43,179 INFO L93 Difference]: Finished difference Result 4892 states and 6761 transitions. [2022-07-23 15:30:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:43,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4892 states and 6761 transitions. [2022-07-23 15:30:43,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 4784 [2022-07-23 15:30:43,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4892 states to 4892 states and 6761 transitions. [2022-07-23 15:30:43,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4892 [2022-07-23 15:30:43,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4892 [2022-07-23 15:30:43,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4892 states and 6761 transitions. [2022-07-23 15:30:43,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:43,235 INFO L369 hiAutomatonCegarLoop]: Abstraction has 4892 states and 6761 transitions. [2022-07-23 15:30:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states and 6761 transitions. [2022-07-23 15:30:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 4647. [2022-07-23 15:30:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4647 states, 4647 states have (on average 1.3871314826769958) internal successors, (6446), 4646 states have internal predecessors, (6446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4647 states to 4647 states and 6446 transitions. [2022-07-23 15:30:43,336 INFO L392 hiAutomatonCegarLoop]: Abstraction has 4647 states and 6446 transitions. [2022-07-23 15:30:43,336 INFO L374 stractBuchiCegarLoop]: Abstraction has 4647 states and 6446 transitions. [2022-07-23 15:30:43,336 INFO L287 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-07-23 15:30:43,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4647 states and 6446 transitions. [2022-07-23 15:30:43,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 4539 [2022-07-23 15:30:43,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:43,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:43,351 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:43,351 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:30:43,351 INFO L752 eck$LassoCheckResult]: Stem: 38875#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 38799#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 38800#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 38805#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 38654#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 38655#L292-2 assume !(1 == ~t1_i~0);~t1_st~0 := 2; 38786#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 38763#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 38764#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 38772#L429 assume !(0 == ~M_E~0); 38554#L429-2 assume !(0 == ~T1_E~0); 38555#L434-1 assume !(0 == ~T2_E~0); 38702#L439-1 assume !(0 == ~T3_E~0); 38737#L444-1 assume !(0 == ~E_M~0); 38738#L449-1 assume !(0 == ~E_1~0); 39875#L454-1 assume !(0 == ~E_2~0); 39873#L459-1 assume !(0 == ~E_3~0); 39872#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 39871#L208 assume !(1 == ~m_pc~0); 39870#L208-2 is_master_triggered_~__retres1~0#1 := 0; 39869#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 39868#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 38541#L531 assume !(0 != activate_threads_~tmp~1#1); 38542#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 38664#L227 assume !(1 == ~t1_pc~0); 38665#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 38773#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 38774#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 38558#L539 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 38559#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 38696#L246 assume !(1 == ~t2_pc~0); 38754#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 38755#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 38783#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 38784#L547 assume !(0 != activate_threads_~tmp___1~0#1); 38811#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 38812#L265 assume !(1 == ~t3_pc~0); 38481#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 38480#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 38711#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 38712#L555 assume !(0 != activate_threads_~tmp___2~0#1); 38571#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 38572#L477 assume !(1 == ~M_E~0); 38835#L477-2 assume !(1 == ~T1_E~0); 38836#L482-1 assume !(1 == ~T2_E~0); 38732#L487-1 assume !(1 == ~T3_E~0); 38733#L492-1 assume !(1 == ~E_M~0); 38526#L497-1 assume !(1 == ~E_1~0); 38527#L502-1 assume !(1 == ~E_2~0); 38505#L507-1 assume !(1 == ~E_3~0); 38506#L512-1 assume { :end_inline_reset_delta_events } true; 38662#L678-2 assume !false; 40200#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 40195#L404 [2022-07-23 15:30:43,352 INFO L754 eck$LassoCheckResult]: Loop: 40195#L404 assume !false; 40193#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 40190#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 40188#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 40185#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 40169#L357 assume 0 != eval_~tmp~0#1; 40170#L357-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 40179#L365 assume !(0 != eval_~tmp_ndt_1~0#1); 40177#L362 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet7#1;havoc eval_#t~nondet7#1; 39820#L379 assume !(0 != eval_~tmp_ndt_2~0#1); 40172#L376 assume !(0 == ~t2_st~0); 40165#L390 assume !(0 == ~t3_st~0); 40195#L404 [2022-07-23 15:30:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash -934376957, now seen corresponding path program 1 times [2022-07-23 15:30:43,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774571757] [2022-07-23 15:30:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:43,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:43,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:43,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774571757] [2022-07-23 15:30:43,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774571757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:43,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:43,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:43,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960041282] [2022-07-23 15:30:43,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:43,370 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 15:30:43,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash -618385943, now seen corresponding path program 1 times [2022-07-23 15:30:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440664155] [2022-07-23 15:30:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:43,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:43,467 INFO L87 Difference]: Start difference. First operand 4647 states and 6446 transitions. cyclomatic complexity: 1802 Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:43,486 INFO L93 Difference]: Finished difference Result 4598 states and 6377 transitions. [2022-07-23 15:30:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:43,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4598 states and 6377 transitions. [2022-07-23 15:30:43,502 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 4539 [2022-07-23 15:30:43,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4598 states to 4598 states and 6377 transitions. [2022-07-23 15:30:43,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4598 [2022-07-23 15:30:43,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4598 [2022-07-23 15:30:43,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4598 states and 6377 transitions. [2022-07-23 15:30:43,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:43,555 INFO L369 hiAutomatonCegarLoop]: Abstraction has 4598 states and 6377 transitions. [2022-07-23 15:30:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states and 6377 transitions. [2022-07-23 15:30:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4598. [2022-07-23 15:30:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 4598 states have (on average 1.3869073510221837) internal successors, (6377), 4597 states have internal predecessors, (6377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 6377 transitions. [2022-07-23 15:30:43,625 INFO L392 hiAutomatonCegarLoop]: Abstraction has 4598 states and 6377 transitions. [2022-07-23 15:30:43,625 INFO L374 stractBuchiCegarLoop]: Abstraction has 4598 states and 6377 transitions. [2022-07-23 15:30:43,625 INFO L287 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-07-23 15:30:43,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4598 states and 6377 transitions. [2022-07-23 15:30:43,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 4539 [2022-07-23 15:30:43,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:43,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:43,637 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:43,638 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:30:43,638 INFO L752 eck$LassoCheckResult]: Stem: 48081#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 48022#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 48023#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 48027#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 47899#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 47900#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 48011#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 47990#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 47991#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 48000#L429 assume !(0 == ~M_E~0); 47806#L429-2 assume !(0 == ~T1_E~0); 47807#L434-1 assume !(0 == ~T2_E~0); 47939#L439-1 assume !(0 == ~T3_E~0); 47967#L444-1 assume !(0 == ~E_M~0); 47968#L449-1 assume !(0 == ~E_1~0); 47812#L454-1 assume !(0 == ~E_2~0); 47813#L459-1 assume !(0 == ~E_3~0); 47770#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 47771#L208 assume !(1 == ~m_pc~0); 48073#L208-2 is_master_triggered_~__retres1~0#1 := 0; 48074#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 47843#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 47792#L531 assume !(0 != activate_threads_~tmp~1#1); 47793#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 47909#L227 assume !(1 == ~t1_pc~0); 47790#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 47791#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 48001#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 47810#L539 assume !(0 != activate_threads_~tmp___0~0#1); 47811#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 47844#L246 assume !(1 == ~t2_pc~0); 47845#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 47943#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 47944#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 48009#L547 assume !(0 != activate_threads_~tmp___1~0#1); 48016#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 47852#L265 assume !(1 == ~t3_pc~0); 47733#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 47704#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 47705#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 47946#L555 assume !(0 != activate_threads_~tmp___2~0#1); 47822#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 47823#L477 assume !(1 == ~M_E~0); 48007#L477-2 assume !(1 == ~T1_E~0); 48024#L482-1 assume !(1 == ~T2_E~0); 47962#L487-1 assume !(1 == ~T3_E~0); 47963#L492-1 assume !(1 == ~E_M~0); 47776#L497-1 assume !(1 == ~E_1~0); 47777#L502-1 assume !(1 == ~E_2~0); 47757#L507-1 assume !(1 == ~E_3~0); 47758#L512-1 assume { :end_inline_reset_delta_events } true; 47907#L678-2 assume !false; 49559#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 49552#L404 [2022-07-23 15:30:43,638 INFO L754 eck$LassoCheckResult]: Loop: 49552#L404 assume !false; 49550#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 49547#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 49545#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 49544#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 49542#L357 assume 0 != eval_~tmp~0#1; 49534#L357-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 49529#L365 assume !(0 != eval_~tmp_ndt_1~0#1); 49524#L362 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet7#1;havoc eval_#t~nondet7#1; 49071#L379 assume !(0 != eval_~tmp_ndt_2~0#1); 49517#L376 assume !(0 == ~t2_st~0); 49558#L390 assume !(0 == ~t3_st~0); 49552#L404 [2022-07-23 15:30:43,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1561976903, now seen corresponding path program 2 times [2022-07-23 15:30:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866509363] [2022-07-23 15:30:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:43,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash -618385943, now seen corresponding path program 2 times [2022-07-23 15:30:43,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339869781] [2022-07-23 15:30:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,672 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:43,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:43,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:43,677 INFO L85 PathProgramCache]: Analyzing trace with hash 943838511, now seen corresponding path program 1 times [2022-07-23 15:30:43,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:43,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196168706] [2022-07-23 15:30:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:43,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196168706] [2022-07-23 15:30:43,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196168706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:43,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:43,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:30:43,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621925816] [2022-07-23 15:30:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:43,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:43,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:43,834 INFO L87 Difference]: Start difference. First operand 4598 states and 6377 transitions. cyclomatic complexity: 1782 Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:43,888 INFO L93 Difference]: Finished difference Result 8299 states and 11428 transitions. [2022-07-23 15:30:43,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:43,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8299 states and 11428 transitions. [2022-07-23 15:30:43,928 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8236 [2022-07-23 15:30:43,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8299 states to 8299 states and 11428 transitions. [2022-07-23 15:30:43,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8299 [2022-07-23 15:30:43,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8299 [2022-07-23 15:30:43,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8299 states and 11428 transitions. [2022-07-23 15:30:43,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:43,991 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8299 states and 11428 transitions. [2022-07-23 15:30:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8299 states and 11428 transitions. [2022-07-23 15:30:44,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8299 to 8145. [2022-07-23 15:30:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8145 states have (on average 1.3790055248618784) internal successors, (11232), 8144 states have internal predecessors, (11232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 11232 transitions. [2022-07-23 15:30:44,175 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8145 states and 11232 transitions. [2022-07-23 15:30:44,175 INFO L374 stractBuchiCegarLoop]: Abstraction has 8145 states and 11232 transitions. [2022-07-23 15:30:44,175 INFO L287 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2022-07-23 15:30:44,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8145 states and 11232 transitions. [2022-07-23 15:30:44,214 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8082 [2022-07-23 15:30:44,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:44,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:44,216 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:44,216 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:30:44,216 INFO L752 eck$LassoCheckResult]: Stem: 60990#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 60928#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 60929#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 60934#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 60804#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 60805#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 60914#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 60895#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 60896#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 60904#L429 assume !(0 == ~M_E~0); 60708#L429-2 assume !(0 == ~T1_E~0); 60709#L434-1 assume !(0 == ~T2_E~0); 60841#L439-1 assume !(0 == ~T3_E~0); 60870#L444-1 assume !(0 == ~E_M~0); 60871#L449-1 assume !(0 == ~E_1~0); 60714#L454-1 assume !(0 == ~E_2~0); 60715#L459-1 assume !(0 == ~E_3~0); 60673#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 60674#L208 assume !(1 == ~m_pc~0); 60978#L208-2 is_master_triggered_~__retres1~0#1 := 0; 60979#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 60745#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 60695#L531 assume !(0 != activate_threads_~tmp~1#1); 60696#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 60814#L227 assume !(1 == ~t1_pc~0); 60693#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 60694#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 60905#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 60712#L539 assume !(0 != activate_threads_~tmp___0~0#1); 60713#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 60746#L246 assume !(1 == ~t2_pc~0); 60747#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 60846#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 60847#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 60912#L547 assume !(0 != activate_threads_~tmp___1~0#1); 60922#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 60754#L265 assume !(1 == ~t3_pc~0); 60636#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 60609#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 60610#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 60850#L555 assume !(0 != activate_threads_~tmp___2~0#1); 60724#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 60725#L477 assume !(1 == ~M_E~0); 60911#L477-2 assume !(1 == ~T1_E~0); 60930#L482-1 assume !(1 == ~T2_E~0); 60865#L487-1 assume !(1 == ~T3_E~0); 60866#L492-1 assume !(1 == ~E_M~0); 60679#L497-1 assume !(1 == ~E_1~0); 60680#L502-1 assume !(1 == ~E_2~0); 60660#L507-1 assume !(1 == ~E_3~0); 60661#L512-1 assume { :end_inline_reset_delta_events } true; 60812#L678-2 assume !false; 63423#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 63382#L404 [2022-07-23 15:30:44,216 INFO L754 eck$LassoCheckResult]: Loop: 63382#L404 assume !false; 63373#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 63366#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 63357#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 63349#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 63343#L357 assume 0 != eval_~tmp~0#1; 63200#L357-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 63196#L365 assume !(0 != eval_~tmp_ndt_1~0#1); 63166#L362 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet7#1;havoc eval_#t~nondet7#1; 63167#L379 assume !(0 != eval_~tmp_ndt_2~0#1); 63014#L376 assume 0 == ~t2_st~0;havoc eval_~tmp_ndt_3~0#1;eval_~tmp_ndt_3~0#1 := eval_#t~nondet8#1;havoc eval_#t~nondet8#1; 62889#L393 assume !(0 != eval_~tmp_ndt_3~0#1); 62891#L390 assume !(0 == ~t3_st~0); 63382#L404 [2022-07-23 15:30:44,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1561976903, now seen corresponding path program 3 times [2022-07-23 15:30:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780408488] [2022-07-23 15:30:44,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,228 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1990224393, now seen corresponding path program 1 times [2022-07-23 15:30:44,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338970507] [2022-07-23 15:30:44,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,242 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:44,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,245 INFO L85 PathProgramCache]: Analyzing trace with hash -805906575, now seen corresponding path program 1 times [2022-07-23 15:30:44,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034094198] [2022-07-23 15:30:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:30:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:30:44,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:30:44,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034094198] [2022-07-23 15:30:44,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034094198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:30:44,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:30:44,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 15:30:44,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892930022] [2022-07-23 15:30:44,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:30:44,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:30:44,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:30:44,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:30:44,377 INFO L87 Difference]: Start difference. First operand 8145 states and 11232 transitions. cyclomatic complexity: 3090 Second operand has 3 states, 2 states have (on average 33.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:30:44,449 INFO L93 Difference]: Finished difference Result 13631 states and 18694 transitions. [2022-07-23 15:30:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:30:44,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13631 states and 18694 transitions. [2022-07-23 15:30:44,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13560 [2022-07-23 15:30:44,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13631 states to 13631 states and 18694 transitions. [2022-07-23 15:30:44,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13631 [2022-07-23 15:30:44,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13631 [2022-07-23 15:30:44,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13631 states and 18694 transitions. [2022-07-23 15:30:44,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:30:44,693 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13631 states and 18694 transitions. [2022-07-23 15:30:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13631 states and 18694 transitions. [2022-07-23 15:30:44,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13631 to 13407. [2022-07-23 15:30:44,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13407 states, 13407 states have (on average 1.3776385470276722) internal successors, (18470), 13406 states have internal predecessors, (18470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:30:44,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13407 states to 13407 states and 18470 transitions. [2022-07-23 15:30:44,873 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13407 states and 18470 transitions. [2022-07-23 15:30:44,873 INFO L374 stractBuchiCegarLoop]: Abstraction has 13407 states and 18470 transitions. [2022-07-23 15:30:44,873 INFO L287 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2022-07-23 15:30:44,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13407 states and 18470 transitions. [2022-07-23 15:30:44,964 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13336 [2022-07-23 15:30:44,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:30:44,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:30:44,965 INFO L179 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-23 15:30:44,965 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:30:44,965 INFO L752 eck$LassoCheckResult]: Stem: 82772#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 82716#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 82717#L641 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 82721#L285 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 82589#L292 assume 1 == ~m_i~0;~m_st~0 := 0; 82590#L292-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 82703#L297-1 assume 1 == ~t2_i~0;~t2_st~0 := 0; 82685#L302-1 assume 1 == ~t3_i~0;~t3_st~0 := 0; 82686#L307-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 82694#L429 assume !(0 == ~M_E~0); 82492#L429-2 assume !(0 == ~T1_E~0); 82493#L434-1 assume !(0 == ~T2_E~0); 82628#L439-1 assume !(0 == ~T3_E~0); 82658#L444-1 assume !(0 == ~E_M~0); 82659#L449-1 assume !(0 == ~E_1~0); 82498#L454-1 assume !(0 == ~E_2~0); 82499#L459-1 assume !(0 == ~E_3~0); 82458#L464-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 82459#L208 assume !(1 == ~m_pc~0); 82761#L208-2 is_master_triggered_~__retres1~0#1 := 0; 82762#L219 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 82529#L220 activate_threads_#t~ret10#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 82479#L531 assume !(0 != activate_threads_~tmp~1#1); 82480#L531-2 assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 82600#L227 assume !(1 == ~t1_pc~0); 82477#L227-2 is_transmit1_triggered_~__retres1~1#1 := 0; 82478#L238 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 82695#L239 activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 82496#L539 assume !(0 != activate_threads_~tmp___0~0#1); 82497#L539-2 assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 82530#L246 assume !(1 == ~t2_pc~0); 82531#L246-2 is_transmit2_triggered_~__retres1~2#1 := 0; 82634#L257 is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 82635#L258 activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 82701#L547 assume !(0 != activate_threads_~tmp___1~0#1); 82708#L547-2 assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 82538#L265 assume !(1 == ~t3_pc~0); 82420#L265-2 is_transmit3_triggered_~__retres1~3#1 := 0; 82393#L276 is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 82394#L277 activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 82639#L555 assume !(0 != activate_threads_~tmp___2~0#1); 82508#L555-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 82509#L477 assume !(1 == ~M_E~0); 82700#L477-2 assume !(1 == ~T1_E~0); 82718#L482-1 assume !(1 == ~T2_E~0); 82653#L487-1 assume !(1 == ~T3_E~0); 82654#L492-1 assume !(1 == ~E_M~0); 82463#L497-1 assume !(1 == ~E_1~0); 82464#L502-1 assume !(1 == ~E_2~0); 82444#L507-1 assume !(1 == ~E_3~0); 82445#L512-1 assume { :end_inline_reset_delta_events } true; 82597#L678-2 assume !false; 86323#L679 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 86320#L404 [2022-07-23 15:30:44,965 INFO L754 eck$LassoCheckResult]: Loop: 86320#L404 assume !false; 86318#L353 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 86315#L320 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 86314#L342 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 86292#L343 eval_#t~ret5#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret5#1;havoc eval_#t~ret5#1; 86291#L357 assume 0 != eval_~tmp~0#1; 86287#L357-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 86282#L365 assume !(0 != eval_~tmp_ndt_1~0#1); 86283#L362 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet7#1;havoc eval_#t~nondet7#1; 86728#L379 assume !(0 != eval_~tmp_ndt_2~0#1); 86360#L376 assume 0 == ~t2_st~0;havoc eval_~tmp_ndt_3~0#1;eval_~tmp_ndt_3~0#1 := eval_#t~nondet8#1;havoc eval_#t~nondet8#1; 86340#L393 assume !(0 != eval_~tmp_ndt_3~0#1); 86341#L390 assume 0 == ~t3_st~0;havoc eval_~tmp_ndt_4~0#1;eval_~tmp_ndt_4~0#1 := eval_#t~nondet9#1;havoc eval_#t~nondet9#1; 86321#L407 assume !(0 != eval_~tmp_ndt_4~0#1); 86320#L404 [2022-07-23 15:30:44,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1561976903, now seen corresponding path program 4 times [2022-07-23 15:30:44,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533608222] [2022-07-23 15:30:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1567417278, now seen corresponding path program 1 times [2022-07-23 15:30:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050326726] [2022-07-23 15:30:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,989 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:44,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:44,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:30:44,993 INFO L85 PathProgramCache]: Analyzing trace with hash 786696712, now seen corresponding path program 1 times [2022-07-23 15:30:44,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:30:44,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733196382] [2022-07-23 15:30:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:30:44,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:30:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:45,000 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:30:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:30:45,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:30:46,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:30:46 BoogieIcfgContainer [2022-07-23 15:30:46,053 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:30:46,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:30:46,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:30:46,054 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:30:46,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:30:40" (3/4) ... [2022-07-23 15:30:46,057 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:30:46,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:30:46,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:30:46,093 INFO L158 Benchmark]: Toolchain (without parser) took 7091.44ms. Allocated memory was 77.6MB in the beginning and 788.5MB in the end (delta: 710.9MB). Free memory was 55.6MB in the beginning and 627.4MB in the end (delta: -571.8MB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,094 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 77.6MB. Free memory was 55.1MB in the beginning and 55.0MB in the end (delta: 41.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:30:46,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.51ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.3MB in the beginning and 66.6MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.62ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 63.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,095 INFO L158 Benchmark]: Boogie Preprocessor took 42.39ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 59.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,095 INFO L158 Benchmark]: RCFGBuilder took 702.88ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 52.8MB in the end (delta: 7.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,095 INFO L158 Benchmark]: BuchiAutomizer took 5931.97ms. Allocated memory was 94.4MB in the beginning and 788.5MB in the end (delta: 694.2MB). Free memory was 52.4MB in the beginning and 630.5MB in the end (delta: -578.2MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,096 INFO L158 Benchmark]: Witness Printer took 39.16ms. Allocated memory is still 788.5MB. Free memory was 630.5MB in the beginning and 627.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:30:46,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 77.6MB. Free memory was 55.1MB in the beginning and 55.0MB in the end (delta: 41.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.51ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.3MB in the beginning and 66.6MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.62ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 63.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.39ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 59.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 702.88ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 52.8MB in the end (delta: 7.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5931.97ms. Allocated memory was 94.4MB in the beginning and 788.5MB in the end (delta: 694.2MB). Free memory was 52.4MB in the beginning and 630.5MB in the end (delta: -578.2MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. * Witness Printer took 39.16ms. Allocated memory is still 788.5MB. Free memory was 630.5MB in the beginning and 627.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (15 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.15 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 13407 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 16 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 15. Minimization of nondet autom 0. Automata minimization 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 5665 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.6s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9253 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9253 mSDsluCounter, 14655 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7271 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 7384 mSDtfsCounter, 351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc3 concLT0 SILN1 SILU0 SILI8 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 352]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {tmp_ndt_3=0, NULL=0, t3_st=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e74c781=0, token=0, NULL=1, tmp=0, __retres1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49531e7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e1009de=0, t2_st=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d62aff7=0, tmp_ndt_2=0, E_3=2, E_1=2, tmp_ndt_1=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d4aa0e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7baecf16=0, m_st=0, NULL=0, t3_pc=0, __retres1=0, tmp___0=0, tmp___2=0, m_pc=0, \result=0, \result=1, \result=0, \result=0, tmp___1=0, T2_E=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@268712b8=0, tmp=0, t1_pc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@278c88ed=0, E_2=2, tmp___0=0, T1_E=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@215063a9=0, __retres1=0, M_E=2, __retres1=1, t2_i=1, \result=0, t3_i=1, m_i=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443e42f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7103c707=0, t1_st=0, __retres1=0, local=0, t2_pc=0, __retres1=0, tmp_ndt_4=0, E_M=2, kernel_st=1, T3_E=2, t1_i=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 352]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L24] int m_pc = 0; [L25] int t1_pc = 0; [L26] int t2_pc = 0; [L27] int t3_pc = 0; [L28] int m_st ; [L29] int t1_st ; [L30] int t2_st ; [L31] int t3_st ; [L32] int m_i ; [L33] int t1_i ; [L34] int t2_i ; [L35] int t3_i ; [L36] int M_E = 2; [L37] int T1_E = 2; [L38] int T2_E = 2; [L39] int T3_E = 2; [L40] int E_M = 2; [L41] int E_1 = 2; [L42] int E_2 = 2; [L43] int E_3 = 2; [L49] int token ; [L51] int local ; [L723] int __retres1 ; [L727] CALL init_model() [L636] m_i = 1 [L637] t1_i = 1 [L638] t2_i = 1 [L639] t3_i = 1 [L727] RET init_model() [L728] CALL start_simulation() [L664] int kernel_st ; [L665] int tmp ; [L666] int tmp___0 ; [L670] kernel_st = 0 [L671] FCALL update_channels() [L672] CALL init_threads() [L292] COND TRUE m_i == 1 [L293] m_st = 0 [L297] COND TRUE t1_i == 1 [L298] t1_st = 0 [L302] COND TRUE t2_i == 1 [L303] t2_st = 0 [L307] COND TRUE t3_i == 1 [L308] t3_st = 0 [L672] RET init_threads() [L673] CALL fire_delta_events() [L429] COND FALSE !(M_E == 0) [L434] COND FALSE !(T1_E == 0) [L439] COND FALSE !(T2_E == 0) [L444] COND FALSE !(T3_E == 0) [L449] COND FALSE !(E_M == 0) [L454] COND FALSE !(E_1 == 0) [L459] COND FALSE !(E_2 == 0) [L464] COND FALSE !(E_3 == 0) [L673] RET fire_delta_events() [L674] CALL activate_threads() [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L529] CALL, EXPR is_master_triggered() [L205] int __retres1 ; [L208] COND FALSE !(m_pc == 1) [L218] __retres1 = 0 [L220] return (__retres1); [L529] RET, EXPR is_master_triggered() [L529] tmp = is_master_triggered() [L531] COND FALSE !(\read(tmp)) [L537] CALL, EXPR is_transmit1_triggered() [L224] int __retres1 ; [L227] COND FALSE !(t1_pc == 1) [L237] __retres1 = 0 [L239] return (__retres1); [L537] RET, EXPR is_transmit1_triggered() [L537] tmp___0 = is_transmit1_triggered() [L539] COND FALSE !(\read(tmp___0)) [L545] CALL, EXPR is_transmit2_triggered() [L243] int __retres1 ; [L246] COND FALSE !(t2_pc == 1) [L256] __retres1 = 0 [L258] return (__retres1); [L545] RET, EXPR is_transmit2_triggered() [L545] tmp___1 = is_transmit2_triggered() [L547] COND FALSE !(\read(tmp___1)) [L553] CALL, EXPR is_transmit3_triggered() [L262] int __retres1 ; [L265] COND FALSE !(t3_pc == 1) [L275] __retres1 = 0 [L277] return (__retres1); [L553] RET, EXPR is_transmit3_triggered() [L553] tmp___2 = is_transmit3_triggered() [L555] COND FALSE !(\read(tmp___2)) [L674] RET activate_threads() [L675] CALL reset_delta_events() [L477] COND FALSE !(M_E == 1) [L482] COND FALSE !(T1_E == 1) [L487] COND FALSE !(T2_E == 1) [L492] COND FALSE !(T3_E == 1) [L497] COND FALSE !(E_M == 1) [L502] COND FALSE !(E_1 == 1) [L507] COND FALSE !(E_2 == 1) [L512] COND FALSE !(E_3 == 1) [L675] RET reset_delta_events() [L678] COND TRUE 1 [L681] kernel_st = 1 [L682] CALL eval() [L348] int tmp ; Loop: [L352] COND TRUE 1 [L355] CALL, EXPR exists_runnable_thread() [L317] int __retres1 ; [L320] COND TRUE m_st == 0 [L321] __retres1 = 1 [L343] return (__retres1); [L355] RET, EXPR exists_runnable_thread() [L355] tmp = exists_runnable_thread() [L357] COND TRUE \read(tmp) [L362] COND TRUE m_st == 0 [L363] int tmp_ndt_1; [L364] tmp_ndt_1 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp_ndt_1)) [L376] COND TRUE t1_st == 0 [L377] int tmp_ndt_2; [L378] tmp_ndt_2 = __VERIFIER_nondet_int() [L379] COND FALSE !(\read(tmp_ndt_2)) [L390] COND TRUE t2_st == 0 [L391] int tmp_ndt_3; [L392] tmp_ndt_3 = __VERIFIER_nondet_int() [L393] COND FALSE !(\read(tmp_ndt_3)) [L404] COND TRUE t3_st == 0 [L405] int tmp_ndt_4; [L406] tmp_ndt_4 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp_ndt_4)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:30:46,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)