./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0 --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 ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:23:06,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:23:06,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:23:06,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:23:06,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:23:06,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:23:06,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:23:06,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:23:06,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:23:06,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:23:06,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:23:06,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:23:06,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:23:06,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:23:06,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:23:06,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:23:06,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:23:06,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:23:06,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:23:06,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:23:06,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:23:06,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:23:06,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:23:06,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:23:06,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:23:06,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:23:06,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:23:06,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:23:06,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:23:06,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:23:06,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:23:06,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:23:06,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:23:06,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:23:06,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:23:06,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:23:06,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:23:06,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:23:06,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:23:06,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:23:06,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:23:06,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-22 14:23:06,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:23:06,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:23:06,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:23:06,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:23:06,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:23:06,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:23:06,549 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:23:06,549 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 14:23:06,550 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 14:23:06,550 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 14:23:06,551 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 14:23:06,551 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 14:23:06,552 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 14:23:06,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:23:06,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:23:06,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:23:06,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:23:06,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:23:06,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:23:06,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 14:23:06,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 14:23:06,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 14:23:06,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:23:06,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:23:06,555 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 14:23:06,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:23:06,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 14:23:06,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:23:06,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:23:06,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:23:06,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:23:06,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:23:06,560 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 14:23:06,560 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2021-11-22 14:23:06,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:23:06,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:23:06,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:23:06,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:23:06,876 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:23:06,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-11-22 14:23:06,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/data/06fbc054f/0ef45ffeda3e420295947d90b4a85346/FLAGdb6ccbde2 [2021-11-22 14:23:07,370 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:23:07,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-11-22 14:23:07,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/data/06fbc054f/0ef45ffeda3e420295947d90b4a85346/FLAGdb6ccbde2 [2021-11-22 14:23:07,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/data/06fbc054f/0ef45ffeda3e420295947d90b4a85346 [2021-11-22 14:23:07,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:23:07,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:23:07,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:23:07,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:23:07,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:23:07,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:07" (1/1) ... [2021-11-22 14:23:07,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6525c602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:07, skipping insertion in model container [2021-11-22 14:23:07,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:07" (1/1) ... [2021-11-22 14:23:07,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:23:07,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:23:07,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2021-11-22 14:23:08,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:23:08,044 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:23:08,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2021-11-22 14:23:08,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:23:08,101 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:23:08,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08 WrapperNode [2021-11-22 14:23:08,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:23:08,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:23:08,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:23:08,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:23:08,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,149 INFO L137 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 357 [2021-11-22 14:23:08,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:23:08,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:23:08,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:23:08,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:23:08,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:23:08,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:23:08,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:23:08,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:23:08,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (1/1) ... [2021-11-22 14:23:08,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:23:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:23:08,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:23:08,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 14:23:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:23:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:23:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:23:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:23:08,340 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:23:08,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:23:08,748 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:23:08,757 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:23:08,758 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-22 14:23:08,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:08 BoogieIcfgContainer [2021-11-22 14:23:08,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:23:08,761 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 14:23:08,761 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 14:23:08,765 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 14:23:08,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:23:08,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 02:23:07" (1/3) ... [2021-11-22 14:23:08,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b52cc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:23:08, skipping insertion in model container [2021-11-22 14:23:08,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:23:08,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:08" (2/3) ... [2021-11-22 14:23:08,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b52cc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:23:08, skipping insertion in model container [2021-11-22 14:23:08,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:23:08,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:08" (3/3) ... [2021-11-22 14:23:08,770 INFO L388 chiAutomizerObserver]: Analyzing ICFG transmitter.01.cil.c [2021-11-22 14:23:08,810 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 14:23:08,810 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 14:23:08,811 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 14:23:08,811 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 14:23:08,811 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 14:23:08,811 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 14:23:08,811 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 14:23:08,811 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 14:23:08,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 133 states, 132 states have (on average 1.5227272727272727) internal successors, (201), 132 states have internal predecessors, (201), 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) [2021-11-22 14:23:08,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 100 [2021-11-22 14:23:08,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:08,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:08,864 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:08,864 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:08,864 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 14:23:08,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 133 states, 132 states have (on average 1.5227272727272727) internal successors, (201), 132 states have internal predecessors, (201), 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) [2021-11-22 14:23:08,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 100 [2021-11-22 14:23:08,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:08,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:08,877 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:08,877 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:08,884 INFO L791 eck$LassoCheckResult]: Stem: 117#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 15#L367true assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 92#L154true assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 12#L161true assume !(1 == ~m_i~0);~m_st~0 := 2; 7#L161-2true assume 1 == ~t1_i~0;~t1_st~0 := 0; 78#L166-1true assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 87#L250true assume !(0 == ~M_E~0); 105#L250-2true assume !(0 == ~T1_E~0); 38#L255-1true assume !(0 == ~E_1~0); 79#L260-1true assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 52#L115true assume !(1 == ~m_pc~0); 56#L115-2true is_master_triggered_~__retres1~0#1 := 0; 67#L126true is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 121#L127true activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 63#L300true assume !(0 != activate_threads_~tmp~1#1); 104#L300-2true 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; 119#L134true assume 1 == ~t1_pc~0; 106#L135true assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 54#L145true is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 85#L146true activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 11#L308true assume !(0 != activate_threads_~tmp___0~0#1); 59#L308-2true assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 57#L273true assume !(1 == ~M_E~0); 109#L273-2true assume !(1 == ~T1_E~0); 99#L278-1true assume !(1 == ~E_1~0); 69#L283-1true assume { :end_inline_reset_delta_events } true; 55#L404-2true [2021-11-22 14:23:08,886 INFO L793 eck$LassoCheckResult]: Loop: 55#L404-2true assume !false; 80#L405true start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 43#L225true assume !true; 25#L240true assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 114#L154-1true assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 118#L250-3true assume 0 == ~M_E~0;~M_E~0 := 1; 96#L250-5true assume 0 == ~T1_E~0;~T1_E~0 := 1; 101#L255-3true assume 0 == ~E_1~0;~E_1~0 := 1; 8#L260-3true assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 48#L115-6true assume 1 == ~m_pc~0; 113#L116-2true assume 1 == ~M_E~0;is_master_triggered_~__retres1~0#1 := 1; 133#L126-2true is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 58#L127-2true activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 72#L300-6true assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 115#L300-8true 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; 131#L134-6true assume !(1 == ~t1_pc~0); 33#L134-8true is_transmit1_triggered_~__retres1~1#1 := 0; 51#L145-2true is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 112#L146-2true activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 49#L308-6true assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 9#L308-8true assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 127#L273-3true assume 1 == ~M_E~0;~M_E~0 := 2; 44#L273-5true assume 1 == ~T1_E~0;~T1_E~0 := 2; 35#L278-3true assume 1 == ~E_1~0;~E_1~0 := 2; 93#L283-3true assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 75#L179-1true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 110#L191-1true exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 132#L192-1true start_simulation_#t~ret10#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret10#1;havoc start_simulation_#t~ret10#1; 19#L423true assume !(0 == start_simulation_~tmp~3#1); 18#L423-2true assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret9#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_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 22#L179-2true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 70#L191-2true exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 94#L192-2true stop_simulation_#t~ret9#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret9#1;havoc stop_simulation_#t~ret9#1; 14#L378true assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 16#L385true stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 76#L386true start_simulation_#t~ret11#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; 42#L436true assume !(0 != start_simulation_~tmp___0~1#1); 55#L404-2true [2021-11-22 14:23:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash 920294251, now seen corresponding path program 1 times [2021-11-22 14:23:08,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:08,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053034793] [2021-11-22 14:23:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:08,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:09,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:09,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053034793] [2021-11-22 14:23:09,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053034793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:09,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:09,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:23:09,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762572172] [2021-11-22 14:23:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:09,068 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-22 14:23:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,069 INFO L85 PathProgramCache]: Analyzing trace with hash 478113713, now seen corresponding path program 1 times [2021-11-22 14:23:09,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134951646] [2021-11-22 14:23:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:09,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:09,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134951646] [2021-11-22 14:23:09,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134951646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:09,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:09,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:23:09,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420289426] [2021-11-22 14:23:09,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:09,110 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:23:09,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:23:09,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:23:09,146 INFO L87 Difference]: Start difference. First operand has 133 states, 132 states have (on average 1.5227272727272727) internal successors, (201), 132 states have internal predecessors, (201), 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 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-22 14:23:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:09,177 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2021-11-22 14:23:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:23:09,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2021-11-22 14:23:09,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 97 [2021-11-22 14:23:09,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 126 states and 182 transitions. [2021-11-22 14:23:09,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2021-11-22 14:23:09,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2021-11-22 14:23:09,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2021-11-22 14:23:09,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:09,199 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-11-22 14:23:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2021-11-22 14:23:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-11-22 14:23:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 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) [2021-11-22 14:23:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2021-11-22 14:23:09,235 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-11-22 14:23:09,235 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-11-22 14:23:09,236 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 14:23:09,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2021-11-22 14:23:09,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 97 [2021-11-22 14:23:09,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:09,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:09,241 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,241 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,241 INFO L791 eck$LassoCheckResult]: Stem: 398#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 293#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 294#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 287#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 278#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 279#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 375#L250 assume !(0 == ~M_E~0); 382#L250-2 assume !(0 == ~T1_E~0); 331#L255-1 assume !(0 == ~E_1~0); 332#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 347#L115 assume !(1 == ~m_pc~0); 318#L115-2 is_master_triggered_~__retres1~0#1 := 0; 319#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 362#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 359#L300 assume !(0 != activate_threads_~tmp~1#1); 360#L300-2 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; 391#L134 assume 1 == ~t1_pc~0; 392#L135 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 349#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 350#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 285#L308 assume !(0 != activate_threads_~tmp___0~0#1); 286#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 352#L273 assume !(1 == ~M_E~0); 353#L273-2 assume !(1 == ~T1_E~0); 389#L278-1 assume !(1 == ~E_1~0); 365#L283-1 assume { :end_inline_reset_delta_events } true; 337#L404-2 [2021-11-22 14:23:09,242 INFO L793 eck$LassoCheckResult]: Loop: 337#L404-2 assume !false; 351#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 301#L225 assume !false; 338#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 379#L179 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 321#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 374#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 329#L206 assume !(0 != eval_~tmp~0#1); 310#L240 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 311#L154-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 396#L250-3 assume 0 == ~M_E~0;~M_E~0 := 1; 387#L250-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 388#L255-3 assume 0 == ~E_1~0;~E_1~0 := 1; 280#L260-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 281#L115-6 assume 1 == ~m_pc~0; 342#L116-2 assume 1 == ~M_E~0;is_master_triggered_~__retres1~0#1 := 1; 395#L126-2 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 354#L127-2 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 355#L300-6 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 368#L300-8 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; 397#L134-6 assume !(1 == ~t1_pc~0); 322#L134-8 is_transmit1_triggered_~__retres1~1#1 := 0; 323#L145-2 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 346#L146-2 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 344#L308-6 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 282#L308-8 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 283#L273-3 assume 1 == ~M_E~0;~M_E~0 := 2; 339#L273-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 325#L278-3 assume 1 == ~E_1~0;~E_1~0 := 2; 326#L283-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 371#L179-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 372#L191-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 393#L192-1 start_simulation_#t~ret10#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret10#1;havoc start_simulation_#t~ret10#1; 298#L423 assume !(0 == start_simulation_~tmp~3#1); 296#L423-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret9#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_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 297#L179-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 304#L191-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 366#L192-2 stop_simulation_#t~ret9#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret9#1;havoc stop_simulation_#t~ret9#1; 291#L378 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 292#L385 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 295#L386 start_simulation_#t~ret11#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; 336#L436 assume !(0 != start_simulation_~tmp___0~1#1); 337#L404-2 [2021-11-22 14:23:09,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1569234711, now seen corresponding path program 1 times [2021-11-22 14:23:09,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204748783] [2021-11-22 14:23:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:09,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:09,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204748783] [2021-11-22 14:23:09,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204748783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:09,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:09,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:23:09,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508730976] [2021-11-22 14:23:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:09,380 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-22 14:23:09,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash -445215682, now seen corresponding path program 1 times [2021-11-22 14:23:09,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100811071] [2021-11-22 14:23:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:09,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:09,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100811071] [2021-11-22 14:23:09,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100811071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:09,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:09,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:23:09,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249304865] [2021-11-22 14:23:09,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:09,497 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:23:09,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:09,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:23:09,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:23:09,498 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 57 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-22 14:23:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:09,623 INFO L93 Difference]: Finished difference Result 304 states and 423 transitions. [2021-11-22 14:23:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:23:09,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 304 states and 423 transitions. [2021-11-22 14:23:09,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 254 [2021-11-22 14:23:09,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 304 states to 304 states and 423 transitions. [2021-11-22 14:23:09,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 304 [2021-11-22 14:23:09,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 304 [2021-11-22 14:23:09,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 304 states and 423 transitions. [2021-11-22 14:23:09,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:09,638 INFO L681 BuchiCegarLoop]: Abstraction has 304 states and 423 transitions. [2021-11-22 14:23:09,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states and 423 transitions. [2021-11-22 14:23:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 284. [2021-11-22 14:23:09,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 284 states have (on average 1.4049295774647887) internal successors, (399), 283 states have internal predecessors, (399), 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) [2021-11-22 14:23:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 399 transitions. [2021-11-22 14:23:09,660 INFO L704 BuchiCegarLoop]: Abstraction has 284 states and 399 transitions. [2021-11-22 14:23:09,660 INFO L587 BuchiCegarLoop]: Abstraction has 284 states and 399 transitions. [2021-11-22 14:23:09,661 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 14:23:09,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 284 states and 399 transitions. [2021-11-22 14:23:09,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 252 [2021-11-22 14:23:09,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:09,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:09,666 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,666 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,666 INFO L791 eck$LassoCheckResult]: Stem: 853#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 735#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 736#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 729#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 720#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 721#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 824#L250 assume !(0 == ~M_E~0); 834#L250-2 assume !(0 == ~T1_E~0); 773#L255-1 assume !(0 == ~E_1~0); 774#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 789#L115 assume !(1 == ~m_pc~0); 790#L115-2 is_master_triggered_~__retres1~0#1 := 0; 794#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 808#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 804#L300 assume !(0 != activate_threads_~tmp~1#1); 805#L300-2 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; 844#L134 assume !(1 == ~t1_pc~0); 802#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 791#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 792#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 727#L308 assume !(0 != activate_threads_~tmp___0~0#1); 728#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 795#L273 assume !(1 == ~M_E~0); 796#L273-2 assume !(1 == ~T1_E~0); 840#L278-1 assume !(1 == ~E_1~0); 812#L283-1 assume { :end_inline_reset_delta_events } true; 813#L404-2 [2021-11-22 14:23:09,666 INFO L793 eck$LassoCheckResult]: Loop: 813#L404-2 assume !false; 969#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 966#L225 assume !false; 964#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 857#L179 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 761#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 823#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 959#L206 assume !(0 != eval_~tmp~0#1); 753#L240 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 754#L154-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 851#L250-3 assume 0 == ~M_E~0;~M_E~0 := 1; 854#L250-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 842#L255-3 assume 0 == ~E_1~0;~E_1~0 := 1; 722#L260-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 723#L115-6 assume !(1 == ~m_pc~0); 784#L115-8 is_master_triggered_~__retres1~0#1 := 0; 856#L126-2 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 797#L127-2 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 798#L300-6 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 815#L300-8 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; 852#L134-6 assume !(1 == ~t1_pc~0); 861#L134-8 is_transmit1_triggered_~__retres1~1#1 := 0; 985#L145-2 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 982#L146-2 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 980#L308-6 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 978#L308-8 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 977#L273-3 assume 1 == ~M_E~0;~M_E~0 := 2; 976#L273-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 974#L278-3 assume 1 == ~E_1~0;~E_1~0 := 2; 973#L283-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 818#L179-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 819#L191-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 846#L192-1 start_simulation_#t~ret10#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret10#1;havoc start_simulation_#t~ret10#1; 740#L423 assume !(0 == start_simulation_~tmp~3#1); 742#L423-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret9#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_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 983#L179-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 981#L191-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 979#L192-2 stop_simulation_#t~ret9#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret9#1;havoc stop_simulation_#t~ret9#1; 975#L378 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 972#L385 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 821#L386 start_simulation_#t~ret11#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; 822#L436 assume !(0 != start_simulation_~tmp___0~1#1); 813#L404-2 [2021-11-22 14:23:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash -904654136, now seen corresponding path program 1 times [2021-11-22 14:23:09,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100371177] [2021-11-22 14:23:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:09,680 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:09,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,737 INFO L85 PathProgramCache]: Analyzing trace with hash -753654691, now seen corresponding path program 1 times [2021-11-22 14:23:09,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729315861] [2021-11-22 14:23:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:09,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:09,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729315861] [2021-11-22 14:23:09,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729315861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:09,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:09,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:23:09,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122791048] [2021-11-22 14:23:09,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:09,830 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:23:09,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:09,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:23:09,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:23:09,831 INFO L87 Difference]: Start difference. First operand 284 states and 399 transitions. cyclomatic complexity: 117 Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-11-22 14:23:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:09,944 INFO L93 Difference]: Finished difference Result 478 states and 654 transitions. [2021-11-22 14:23:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:23:09,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 478 states and 654 transitions. [2021-11-22 14:23:09,952 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 441 [2021-11-22 14:23:09,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 478 states to 478 states and 654 transitions. [2021-11-22 14:23:09,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 478 [2021-11-22 14:23:09,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 478 [2021-11-22 14:23:09,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 478 states and 654 transitions. [2021-11-22 14:23:09,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:09,962 INFO L681 BuchiCegarLoop]: Abstraction has 478 states and 654 transitions. [2021-11-22 14:23:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states and 654 transitions. [2021-11-22 14:23:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 293. [2021-11-22 14:23:09,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 293 states have (on average 1.3924914675767919) internal successors, (408), 292 states have internal predecessors, (408), 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) [2021-11-22 14:23:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 408 transitions. [2021-11-22 14:23:09,984 INFO L704 BuchiCegarLoop]: Abstraction has 293 states and 408 transitions. [2021-11-22 14:23:09,984 INFO L587 BuchiCegarLoop]: Abstraction has 293 states and 408 transitions. [2021-11-22 14:23:09,985 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-22 14:23:09,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 408 transitions. [2021-11-22 14:23:09,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 261 [2021-11-22 14:23:09,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:09,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:09,990 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,990 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:09,990 INFO L791 eck$LassoCheckResult]: Stem: 1643#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 1564#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 1513#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 1514#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 1507#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 1498#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 1499#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 1608#L250 assume !(0 == ~M_E~0); 1620#L250-2 assume !(0 == ~T1_E~0); 1552#L255-1 assume !(0 == ~E_1~0); 1553#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 1572#L115 assume !(1 == ~m_pc~0); 1573#L115-2 is_master_triggered_~__retres1~0#1 := 0; 1577#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 1591#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 1587#L300 assume !(0 != activate_threads_~tmp~1#1); 1588#L300-2 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; 1631#L134 assume !(1 == ~t1_pc~0); 1582#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 1574#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 1575#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 1505#L308 assume !(0 != activate_threads_~tmp___0~0#1); 1506#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 1578#L273 assume !(1 == ~M_E~0); 1579#L273-2 assume !(1 == ~T1_E~0); 1627#L278-1 assume !(1 == ~E_1~0); 1594#L283-1 assume { :end_inline_reset_delta_events } true; 1595#L404-2 [2021-11-22 14:23:09,990 INFO L793 eck$LassoCheckResult]: Loop: 1595#L404-2 assume !false; 1751#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 1744#L225 assume !false; 1694#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 1690#L179 assume !(0 == ~m_st~0); 1685#L183 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2#1 := 0; 1682#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 1679#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 1676#L206 assume !(0 != eval_~tmp~0#1); 1674#L240 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 1672#L154-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 1670#L250-3 assume 0 == ~M_E~0;~M_E~0 := 1; 1668#L250-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 1665#L255-3 assume 0 == ~E_1~0;~E_1~0 := 1; 1666#L260-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 1565#L115-6 assume !(1 == ~m_pc~0); 1566#L115-8 is_master_triggered_~__retres1~0#1 := 0; 1645#L126-2 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 1728#L127-2 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 1599#L300-6 assume 0 != activate_threads_~tmp~1#1;~m_st~0 := 0; 1600#L300-8 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; 1649#L134-6 assume !(1 == ~t1_pc~0); 1543#L134-8 is_transmit1_triggered_~__retres1~1#1 := 0; 1544#L145-2 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 1569#L146-2 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 1636#L308-6 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 1725#L308-8 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 1724#L273-3 assume 1 == ~M_E~0;~M_E~0 := 2; 1560#L273-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 1546#L278-3 assume 1 == ~E_1~0;~E_1~0 := 2; 1547#L283-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 1604#L179-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 1605#L191-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 1634#L192-1 start_simulation_#t~ret10#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret10#1;havoc start_simulation_#t~ret10#1; 1518#L423 assume !(0 == start_simulation_~tmp~3#1); 1520#L423-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret9#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_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 1763#L179-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 1762#L191-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 1760#L192-2 stop_simulation_#t~ret9#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret9#1;havoc stop_simulation_#t~ret9#1; 1758#L378 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 1756#L385 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 1754#L386 start_simulation_#t~ret11#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; 1752#L436 assume !(0 != start_simulation_~tmp___0~1#1); 1595#L404-2 [2021-11-22 14:23:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash -904654136, now seen corresponding path program 2 times [2021-11-22 14:23:09,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:09,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677014128] [2021-11-22 14:23:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:09,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,002 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash -682345966, now seen corresponding path program 1 times [2021-11-22 14:23:10,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000119669] [2021-11-22 14:23:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:10,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000119669] [2021-11-22 14:23:10,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000119669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:10,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:10,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:23:10,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012105505] [2021-11-22 14:23:10,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:10,154 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:23:10,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:23:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:23:10,160 INFO L87 Difference]: Start difference. First operand 293 states and 408 transitions. cyclomatic complexity: 117 Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-22 14:23:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:10,254 INFO L93 Difference]: Finished difference Result 623 states and 857 transitions. [2021-11-22 14:23:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:23:10,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 623 states and 857 transitions. [2021-11-22 14:23:10,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 591 [2021-11-22 14:23:10,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 623 states to 623 states and 857 transitions. [2021-11-22 14:23:10,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 623 [2021-11-22 14:23:10,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 623 [2021-11-22 14:23:10,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 857 transitions. [2021-11-22 14:23:10,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:10,272 INFO L681 BuchiCegarLoop]: Abstraction has 623 states and 857 transitions. [2021-11-22 14:23:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 857 transitions. [2021-11-22 14:23:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 311. [2021-11-22 14:23:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.360128617363344) internal successors, (423), 310 states have internal predecessors, (423), 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) [2021-11-22 14:23:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 423 transitions. [2021-11-22 14:23:10,296 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 423 transitions. [2021-11-22 14:23:10,297 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 423 transitions. [2021-11-22 14:23:10,297 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-22 14:23:10,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 423 transitions. [2021-11-22 14:23:10,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 279 [2021-11-22 14:23:10,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:10,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:10,306 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:10,306 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 14:23:10,306 INFO L791 eck$LassoCheckResult]: Stem: 2561#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 2492#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 2442#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 2443#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 2436#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 2427#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 2428#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 2533#L250 assume !(0 == ~M_E~0); 2544#L250-2 assume !(0 == ~T1_E~0); 2480#L255-1 assume !(0 == ~E_1~0); 2481#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 2500#L115 assume !(1 == ~m_pc~0); 2501#L115-2 is_master_triggered_~__retres1~0#1 := 0; 2505#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2518#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 2515#L300 assume !(0 != activate_threads_~tmp~1#1); 2516#L300-2 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; 2552#L134 assume !(1 == ~t1_pc~0); 2513#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 2502#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 2503#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 2434#L308 assume !(0 != activate_threads_~tmp___0~0#1); 2435#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 2506#L273 assume !(1 == ~M_E~0); 2507#L273-2 assume !(1 == ~T1_E~0); 2548#L278-1 assume !(1 == ~E_1~0); 2522#L283-1 assume { :end_inline_reset_delta_events } true; 2523#L404-2 [2021-11-22 14:23:10,309 INFO L793 eck$LassoCheckResult]: Loop: 2523#L404-2 assume !false; 2604#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 2602#L225 assume !false; 2601#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 2599#L179 assume !(0 == ~m_st~0); 2600#L183 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2#1 := 0; 2598#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 2596#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 2594#L206 assume !(0 != eval_~tmp~0#1); 2592#L240 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 2590#L154-1 assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 2587#L250-3 assume 0 == ~M_E~0;~M_E~0 := 1; 2584#L250-5 assume 0 == ~T1_E~0;~T1_E~0 := 1; 2582#L255-3 assume 0 == ~E_1~0;~E_1~0 := 1; 2579#L260-3 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 2493#L115-6 assume !(1 == ~m_pc~0); 2494#L115-8 is_master_triggered_~__retres1~0#1 := 0; 2647#L126-2 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 2646#L127-2 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 2645#L300-6 assume !(0 != activate_threads_~tmp~1#1); 2644#L300-8 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; 2643#L134-6 assume !(1 == ~t1_pc~0); 2641#L134-8 is_transmit1_triggered_~__retres1~1#1 := 0; 2639#L145-2 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 2637#L146-2 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 2635#L308-6 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 2633#L308-8 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 2631#L273-3 assume 1 == ~M_E~0;~M_E~0 := 2; 2629#L273-5 assume 1 == ~T1_E~0;~T1_E~0 := 2; 2627#L278-3 assume 1 == ~E_1~0;~E_1~0 := 2; 2625#L283-3 assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 2622#L179-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 2620#L191-1 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 2618#L192-1 start_simulation_#t~ret10#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret10#1;havoc start_simulation_#t~ret10#1; 2615#L423 assume !(0 == start_simulation_~tmp~3#1); 2613#L423-2 assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret9#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_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 2611#L179-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 2610#L191-2 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 2609#L192-2 stop_simulation_#t~ret9#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret9#1;havoc stop_simulation_#t~ret9#1; 2608#L378 assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 2607#L385 stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 2606#L386 start_simulation_#t~ret11#1 := stop_simulation_#res#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; 2605#L436 assume !(0 != start_simulation_~tmp___0~1#1); 2523#L404-2 [2021-11-22 14:23:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,310 INFO L85 PathProgramCache]: Analyzing trace with hash -904654136, now seen corresponding path program 3 times [2021-11-22 14:23:10,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606696400] [2021-11-22 14:23:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,328 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash -816359472, now seen corresponding path program 1 times [2021-11-22 14:23:10,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291791056] [2021-11-22 14:23:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:10,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:10,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291791056] [2021-11-22 14:23:10,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291791056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:10,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:10,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:23:10,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479309630] [2021-11-22 14:23:10,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:10,420 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:23:10,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:23:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:23:10,421 INFO L87 Difference]: Start difference. First operand 311 states and 423 transitions. cyclomatic complexity: 114 Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-22 14:23:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:10,451 INFO L93 Difference]: Finished difference Result 460 states and 611 transitions. [2021-11-22 14:23:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:23:10,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 460 states and 611 transitions. [2021-11-22 14:23:10,459 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 426 [2021-11-22 14:23:10,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 460 states to 460 states and 611 transitions. [2021-11-22 14:23:10,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 460 [2021-11-22 14:23:10,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 460 [2021-11-22 14:23:10,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 460 states and 611 transitions. [2021-11-22 14:23:10,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:10,466 INFO L681 BuchiCegarLoop]: Abstraction has 460 states and 611 transitions. [2021-11-22 14:23:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states and 611 transitions. [2021-11-22 14:23:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 439. [2021-11-22 14:23:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 439 states have (on average 1.3348519362186788) internal successors, (586), 438 states have internal predecessors, (586), 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) [2021-11-22 14:23:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 586 transitions. [2021-11-22 14:23:10,478 INFO L704 BuchiCegarLoop]: Abstraction has 439 states and 586 transitions. [2021-11-22 14:23:10,479 INFO L587 BuchiCegarLoop]: Abstraction has 439 states and 586 transitions. [2021-11-22 14:23:10,479 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-22 14:23:10,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 439 states and 586 transitions. [2021-11-22 14:23:10,482 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 405 [2021-11-22 14:23:10,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:10,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:10,483 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:10,483 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:23:10,484 INFO L791 eck$LassoCheckResult]: Stem: 3337#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 3268#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 3219#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 3220#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 3213#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 3204#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 3205#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 3304#L250 assume !(0 == ~M_E~0); 3314#L250-2 assume !(0 == ~T1_E~0); 3256#L255-1 assume !(0 == ~E_1~0); 3257#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 3273#L115 assume !(1 == ~m_pc~0); 3274#L115-2 is_master_triggered_~__retres1~0#1 := 0; 3278#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 3290#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 3286#L300 assume !(0 != activate_threads_~tmp~1#1); 3287#L300-2 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; 3327#L134 assume !(1 == ~t1_pc~0); 3285#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 3275#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 3276#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 3211#L308 assume !(0 != activate_threads_~tmp___0~0#1); 3212#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 3279#L273 assume !(1 == ~M_E~0); 3280#L273-2 assume !(1 == ~T1_E~0); 3322#L278-1 assume !(1 == ~E_1~0); 3294#L283-1 assume { :end_inline_reset_delta_events } true; 3295#L404-2 assume !false; 3541#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 3539#L225 [2021-11-22 14:23:10,484 INFO L793 eck$LassoCheckResult]: Loop: 3539#L225 assume !false; 3538#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 3536#L179 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 3534#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 3532#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 3530#L206 assume 0 != eval_~tmp~0#1; 3528#L206-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet5#1;havoc eval_#t~nondet5#1; 3525#L214 assume !(0 != eval_~tmp_ndt_1~0#1); 3526#L211 assume !(0 == ~t1_st~0); 3539#L225 [2021-11-22 14:23:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1789227190, now seen corresponding path program 1 times [2021-11-22 14:23:10,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813872822] [2021-11-22 14:23:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,516 INFO L85 PathProgramCache]: Analyzing trace with hash 438949112, now seen corresponding path program 1 times [2021-11-22 14:23:10,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109695847] [2021-11-22 14:23:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,520 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1724815409, now seen corresponding path program 1 times [2021-11-22 14:23:10,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095169921] [2021-11-22 14:23:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:10,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:10,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095169921] [2021-11-22 14:23:10,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095169921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:10,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:10,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:23:10,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137043953] [2021-11-22 14:23:10,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:10,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:23:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:23:10,671 INFO L87 Difference]: Start difference. First operand 439 states and 586 transitions. cyclomatic complexity: 150 Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-22 14:23:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:10,722 INFO L93 Difference]: Finished difference Result 765 states and 1008 transitions. [2021-11-22 14:23:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:23:10,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 765 states and 1008 transitions. [2021-11-22 14:23:10,731 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 665 [2021-11-22 14:23:10,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 765 states to 765 states and 1008 transitions. [2021-11-22 14:23:10,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 765 [2021-11-22 14:23:10,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 765 [2021-11-22 14:23:10,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 765 states and 1008 transitions. [2021-11-22 14:23:10,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:10,744 INFO L681 BuchiCegarLoop]: Abstraction has 765 states and 1008 transitions. [2021-11-22 14:23:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states and 1008 transitions. [2021-11-22 14:23:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 690. [2021-11-22 14:23:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 690 states have (on average 1.3333333333333333) internal successors, (920), 689 states have internal predecessors, (920), 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) [2021-11-22 14:23:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 920 transitions. [2021-11-22 14:23:10,761 INFO L704 BuchiCegarLoop]: Abstraction has 690 states and 920 transitions. [2021-11-22 14:23:10,761 INFO L587 BuchiCegarLoop]: Abstraction has 690 states and 920 transitions. [2021-11-22 14:23:10,762 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-22 14:23:10,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 690 states and 920 transitions. [2021-11-22 14:23:10,766 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 616 [2021-11-22 14:23:10,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:10,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:10,767 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:10,767 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:23:10,768 INFO L791 eck$LassoCheckResult]: Stem: 4567#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 4481#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 4433#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 4434#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 4427#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 4416#L161-2 assume !(1 == ~t1_i~0);~t1_st~0 := 2; 4417#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 4537#L250 assume !(0 == ~M_E~0); 4538#L250-2 assume !(0 == ~T1_E~0); 4468#L255-1 assume !(0 == ~E_1~0); 4469#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 4489#L115 assume !(1 == ~m_pc~0); 4490#L115-2 is_master_triggered_~__retres1~0#1 := 0; 4509#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 4510#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 4505#L300 assume !(0 != activate_threads_~tmp~1#1); 4506#L300-2 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; 4570#L134 assume !(1 == ~t1_pc~0); 4571#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 4491#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 4492#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 4424#L308 assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 4425#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 4500#L273 assume !(1 == ~M_E~0); 4556#L273-2 assume !(1 == ~T1_E~0); 4557#L278-1 assume !(1 == ~E_1~0); 4514#L283-1 assume { :end_inline_reset_delta_events } true; 4515#L404-2 assume !false; 5101#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 4531#L225 [2021-11-22 14:23:10,768 INFO L793 eck$LassoCheckResult]: Loop: 4531#L225 assume !false; 5098#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 5097#L179 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 5095#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 5092#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 5089#L206 assume 0 != eval_~tmp~0#1; 5086#L206-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet5#1;havoc eval_#t~nondet5#1; 4577#L214 assume !(0 != eval_~tmp_ndt_1~0#1); 4578#L211 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 4529#L228 assume !(0 != eval_~tmp_ndt_2~0#1); 4531#L225 [2021-11-22 14:23:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1113894070, now seen corresponding path program 1 times [2021-11-22 14:23:10,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290817664] [2021-11-22 14:23:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:23:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:23:10,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:23:10,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290817664] [2021-11-22 14:23:10,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290817664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:23:10,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:23:10,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:23:10,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650376091] [2021-11-22 14:23:10,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:23:10,808 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-22 14:23:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,809 INFO L85 PathProgramCache]: Analyzing trace with hash 722519635, now seen corresponding path program 1 times [2021-11-22 14:23:10,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899970584] [2021-11-22 14:23:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,814 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:23:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:23:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:23:10,903 INFO L87 Difference]: Start difference. First operand 690 states and 920 transitions. cyclomatic complexity: 234 Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-22 14:23:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:23:10,912 INFO L93 Difference]: Finished difference Result 577 states and 772 transitions. [2021-11-22 14:23:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:23:10,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 772 transitions. [2021-11-22 14:23:10,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 543 [2021-11-22 14:23:10,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 577 states and 772 transitions. [2021-11-22 14:23:10,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 577 [2021-11-22 14:23:10,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 577 [2021-11-22 14:23:10,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 577 states and 772 transitions. [2021-11-22 14:23:10,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:23:10,926 INFO L681 BuchiCegarLoop]: Abstraction has 577 states and 772 transitions. [2021-11-22 14:23:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states and 772 transitions. [2021-11-22 14:23:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2021-11-22 14:23:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 577 states have (on average 1.3379549393414212) internal successors, (772), 576 states have internal predecessors, (772), 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) [2021-11-22 14:23:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 772 transitions. [2021-11-22 14:23:10,939 INFO L704 BuchiCegarLoop]: Abstraction has 577 states and 772 transitions. [2021-11-22 14:23:10,939 INFO L587 BuchiCegarLoop]: Abstraction has 577 states and 772 transitions. [2021-11-22 14:23:10,939 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-22 14:23:10,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 577 states and 772 transitions. [2021-11-22 14:23:10,943 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 543 [2021-11-22 14:23:10,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:23:10,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:23:10,944 INFO L842 BuchiCegarLoop]: 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] [2021-11-22 14:23:10,944 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:23:10,944 INFO L791 eck$LassoCheckResult]: Stem: 5825#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(21, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~E_1~0 := 2; 5752#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~3#1;havoc main_~__retres1~3#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1; 5704#L367 assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret10#1, start_simulation_#t~ret11#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; 5705#L154 assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 5698#L161 assume 1 == ~m_i~0;~m_st~0 := 0; 5689#L161-2 assume 1 == ~t1_i~0;~t1_st~0 := 0; 5690#L166-1 assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 5793#L250 assume !(0 == ~M_E~0); 5804#L250-2 assume !(0 == ~T1_E~0); 5739#L255-1 assume !(0 == ~E_1~0); 5740#L260-1 assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret7#1, activate_threads_#t~ret8#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#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; 5762#L115 assume !(1 == ~m_pc~0); 5763#L115-2 is_master_triggered_~__retres1~0#1 := 0; 5767#L126 is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 5779#L127 activate_threads_#t~ret7#1 := is_master_triggered_#res#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret7#1;havoc activate_threads_#t~ret7#1; 5775#L300 assume !(0 != activate_threads_~tmp~1#1); 5776#L300-2 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; 5815#L134 assume !(1 == ~t1_pc~0); 5772#L134-2 is_transmit1_triggered_~__retres1~1#1 := 0; 5764#L145 is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 5765#L146 activate_threads_#t~ret8#1 := is_transmit1_triggered_#res#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret8#1;havoc activate_threads_#t~ret8#1; 5696#L308 assume !(0 != activate_threads_~tmp___0~0#1); 5697#L308-2 assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 5768#L273 assume !(1 == ~M_E~0); 5769#L273-2 assume !(1 == ~T1_E~0); 5808#L278-1 assume !(1 == ~E_1~0); 5782#L283-1 assume { :end_inline_reset_delta_events } true; 5783#L404-2 assume !false; 6088#L405 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret4#1, eval_#t~nondet5#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet6#1, eval_~tmp_ndt_2~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 6086#L225 [2021-11-22 14:23:10,944 INFO L793 eck$LassoCheckResult]: Loop: 6086#L225 assume !false; 6085#L202 assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~2#1;havoc exists_runnable_thread_~__retres1~2#1; 6084#L179 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2#1 := 1; 6083#L191 exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~2#1; 6082#L192 eval_#t~ret4#1 := exists_runnable_thread_#res#1;assume { :end_inline_exists_runnable_thread } true;eval_~tmp~0#1 := eval_#t~ret4#1;havoc eval_#t~ret4#1; 6081#L206 assume 0 != eval_~tmp~0#1; 6080#L206-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0#1;eval_~tmp_ndt_1~0#1 := eval_#t~nondet5#1;havoc eval_#t~nondet5#1; 6078#L214 assume !(0 != eval_~tmp_ndt_1~0#1); 6079#L211 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0#1;eval_~tmp_ndt_2~0#1 := eval_#t~nondet6#1;havoc eval_#t~nondet6#1; 6087#L228 assume !(0 != eval_~tmp_ndt_2~0#1); 6086#L225 [2021-11-22 14:23:10,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1789227190, now seen corresponding path program 2 times [2021-11-22 14:23:10,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686609256] [2021-11-22 14:23:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,955 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 722519635, now seen corresponding path program 2 times [2021-11-22 14:23:10,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466739205] [2021-11-22 14:23:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,987 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,991 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:23:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1929671076, now seen corresponding path program 1 times [2021-11-22 14:23:10,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:23:10,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17591452] [2021-11-22 14:23:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:23:10,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:23:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:10,998 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:23:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:23:11,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:23:11,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 02:23:11 BoogieIcfgContainer [2021-11-22 14:23:11,619 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 14:23:11,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:23:11,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:23:11,619 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:23:11,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:08" (3/4) ... [2021-11-22 14:23:11,622 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-22 14:23:11,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:23:11,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:23:11,687 INFO L158 Benchmark]: Toolchain (without parser) took 3941.83ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 112.9MB in the end (delta: -40.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,687 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:23:11,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.53ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 87.0MB in the end (delta: -14.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.92ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 84.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,688 INFO L158 Benchmark]: Boogie Preprocessor took 31.73ms. Allocated memory is still 115.3MB. Free memory was 84.6MB in the beginning and 83.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:23:11,689 INFO L158 Benchmark]: RCFGBuilder took 577.80ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 66.0MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,689 INFO L158 Benchmark]: BuchiAutomizer took 2857.53ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 65.7MB in the beginning and 43.6MB in the end (delta: 22.1MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,689 INFO L158 Benchmark]: Witness Printer took 67.14ms. Allocated memory is still 142.6MB. Free memory was 43.6MB in the beginning and 112.9MB in the end (delta: -69.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-11-22 14:23:11,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.53ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 87.0MB in the end (delta: -14.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.92ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 84.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.73ms. Allocated memory is still 115.3MB. Free memory was 84.6MB in the beginning and 83.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 577.80ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 66.0MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2857.53ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 65.7MB in the beginning and 43.6MB in the end (delta: 22.1MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Witness Printer took 67.14ms. Allocated memory is still 142.6MB. Free memory was 43.6MB in the beginning and 112.9MB in the end (delta: -69.3MB). Peak memory consumption was 5.2MB. 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 7 terminating modules (7 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.7 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 577 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 613 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 690 states and ocurred in iteration 6. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1700 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1700 mSDsluCounter, 3003 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1724 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 1279 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN1 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 201]: 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 {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c8d2401=0, NULL=1, \result=0, tmp=0, __retres1=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30b89ceb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29988266=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@582dda56=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23ad8778=0, t1_pc=0, tmp_ndt_2=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39673e99=0, T1_E=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26ee02cb=0, E_1=2, __retres1=0, M_E=2, tmp_ndt_1=0, __retres1=1, tmp=1, \result=0, m_i=1, t1_st=0, __retres1=0, m_st=0, NULL=0, kernel_st=1, tmp___0=0, t1_i=1, m_pc=0, \result=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 201]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int m_i ; [L30] int t1_i ; [L31] int M_E = 2; [L32] int T1_E = 2; [L33] int E_1 = 2; [L449] int __retres1 ; [L453] CALL init_model() [L364] m_i = 1 [L365] t1_i = 1 [L453] RET init_model() [L454] CALL start_simulation() [L390] int kernel_st ; [L391] int tmp ; [L392] int tmp___0 ; [L396] kernel_st = 0 [L397] FCALL update_channels() [L398] CALL init_threads() [L161] COND TRUE m_i == 1 [L162] m_st = 0 [L166] COND TRUE t1_i == 1 [L167] t1_st = 0 [L398] RET init_threads() [L399] CALL fire_delta_events() [L250] COND FALSE !(M_E == 0) [L255] COND FALSE !(T1_E == 0) [L260] COND FALSE !(E_1 == 0) [L399] RET fire_delta_events() [L400] CALL activate_threads() [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; [L115] COND FALSE !(m_pc == 1) [L125] __retres1 = 0 [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; [L134] COND FALSE !(t1_pc == 1) [L144] __retres1 = 0 [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND FALSE !(\read(tmp___0)) [L400] RET activate_threads() [L401] CALL reset_delta_events() [L273] COND FALSE !(M_E == 1) [L278] COND FALSE !(T1_E == 1) [L283] COND FALSE !(E_1 == 1) [L401] RET reset_delta_events() [L404] COND TRUE 1 [L407] kernel_st = 1 [L408] CALL eval() [L197] int tmp ; Loop: [L201] COND TRUE 1 [L204] CALL, EXPR exists_runnable_thread() [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND FALSE !(\read(tmp_ndt_1)) [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND FALSE !(\read(tmp_ndt_2)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 14:23:11,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d6ad93-4e15-4a2e-89bb-55a88a54dd79/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)