./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer --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 2216fd6115b2bb44c4633e353be739828d7cac46 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:16:59,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:16:59,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:16:59,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:16:59,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:16:59,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:16:59,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:16:59,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:16:59,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:16:59,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:16:59,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:16:59,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:16:59,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:16:59,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:16:59,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:16:59,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:16:59,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:16:59,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:16:59,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:16:59,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:16:59,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:16:59,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:16:59,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:16:59,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:16:59,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:16:59,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:16:59,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:16:59,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:16:59,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:16:59,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:16:59,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:16:59,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:16:59,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:16:59,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:16:59,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:16:59,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:16:59,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:16:59,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:16:59,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:16:59,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:16:59,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:16:59,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:16:59,688 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:16:59,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:16:59,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:16:59,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:16:59,689 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:16:59,690 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:16:59,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:16:59,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:16:59,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:16:59,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:16:59,692 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:16:59,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:16:59,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:16:59,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:16:59,693 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:16:59,694 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:16:59,694 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer 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 -> 2216fd6115b2bb44c4633e353be739828d7cac46 [2019-12-07 12:16:59,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:16:59,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:16:59,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:16:59,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:16:59,804 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:16:59,804 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2019-12-07 12:16:59,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/data/f9de89151/67966e53a22f4c3daa2f987e56415974/FLAG689a0c5d6 [2019-12-07 12:17:00,286 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:17:00,286 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2019-12-07 12:17:00,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/data/f9de89151/67966e53a22f4c3daa2f987e56415974/FLAG689a0c5d6 [2019-12-07 12:17:00,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/data/f9de89151/67966e53a22f4c3daa2f987e56415974 [2019-12-07 12:17:00,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:17:00,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:17:00,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:17:00,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:17:00,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:17:00,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5575fbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00, skipping insertion in model container [2019-12-07 12:17:00,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:17:00,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:17:00,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:17:00,486 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:17:00,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:17:00,522 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:17:00,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00 WrapperNode [2019-12-07 12:17:00,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:17:00,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:17:00,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:17:00,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:17:00,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:17:00,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:17:00,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:17:00,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:17:00,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... [2019-12-07 12:17:00,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:17:00,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:17:00,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:17:00,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:17:00,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:17:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:17:00,905 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:17:00,905 INFO L287 CfgBuilder]: Removed 80 assume(true) statements. [2019-12-07 12:17:00,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:00 BoogieIcfgContainer [2019-12-07 12:17:00,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:17:00,907 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:17:00,907 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:17:00,909 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:17:00,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:00,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:17:00" (1/3) ... [2019-12-07 12:17:00,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21fbc4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:17:00, skipping insertion in model container [2019-12-07 12:17:00,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:00,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:00" (2/3) ... [2019-12-07 12:17:00,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21fbc4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:17:00, skipping insertion in model container [2019-12-07 12:17:00,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:00,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:00" (3/3) ... [2019-12-07 12:17:00,912 INFO L371 chiAutomizerObserver]: Analyzing ICFG token_ring.01.cil-1.c [2019-12-07 12:17:00,940 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:17:00,940 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:17:00,940 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:17:00,940 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:17:00,940 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:17:00,940 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:17:00,940 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:17:00,940 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:17:00,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-12-07 12:17:00,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 109 [2019-12-07 12:17:00,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:00,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:00,980 INFO L849 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] [2019-12-07 12:17:00,981 INFO L850 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] [2019-12-07 12:17:00,981 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:17:00,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-12-07 12:17:00,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 109 [2019-12-07 12:17:00,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:00,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:00,988 INFO L849 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] [2019-12-07 12:17:00,988 INFO L850 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] [2019-12-07 12:17:00,994 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 7#L-1true havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 32#L381true havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 10#L153true assume !(1 == ~m_i~0);~m_st~0 := 2; 94#L160-1true assume 1 == ~t1_i~0;~t1_st~0 := 0; 106#L165-1true assume !(0 == ~M_E~0); 41#L249-1true assume !(0 == ~T1_E~0); 54#L254-1true assume !(0 == ~E_M~0); 100#L259-1true assume !(0 == ~E_1~0); 104#L264-1true havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 23#L114true assume !(1 == ~m_pc~0); 16#L114-2true is_master_triggered_~__retres1~0 := 0; 24#L125true is_master_triggered_#res := is_master_triggered_~__retres1~0; 121#L126true activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 82#L309true assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 61#L309-2true havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 47#L133true assume 1 == ~t1_pc~0; 129#L134true assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1 := 1; 48#L144true is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 130#L145true activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 85#L317true assume !(0 != activate_threads_~tmp___0~0); 87#L317-2true assume !(1 == ~M_E~0); 135#L277-1true assume !(1 == ~T1_E~0); 43#L282-1true assume !(1 == ~E_M~0); 55#L287-1true assume 1 == ~E_1~0;~E_1~0 := 2; 116#L418-1true [2019-12-07 12:17:00,995 INFO L796 eck$LassoCheckResult]: Loop: 116#L418-1true assume !false; 79#L419true start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 62#L224true assume !true; 108#L239true start_simulation_~kernel_st~0 := 2; 9#L153-1true start_simulation_~kernel_st~0 := 3; 36#L249-2true assume 0 == ~M_E~0;~M_E~0 := 1; 30#L249-4true assume 0 == ~T1_E~0;~T1_E~0 := 1; 49#L254-3true assume 0 == ~E_M~0;~E_M~0 := 1; 96#L259-3true assume !(0 == ~E_1~0); 102#L264-3true havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 6#L114-9true assume !(1 == ~m_pc~0); 5#L114-11true is_master_triggered_~__retres1~0 := 0; 13#L125-3true is_master_triggered_#res := is_master_triggered_~__retres1~0; 112#L126-3true activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 52#L309-9true assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 56#L309-11true havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 22#L133-9true assume 1 == ~t1_pc~0; 139#L134-3true assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1 := 1; 70#L144-3true is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 141#L145-3true activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 58#L317-9true assume !(0 != activate_threads_~tmp___0~0); 65#L317-11true assume 1 == ~M_E~0;~M_E~0 := 2; 133#L277-3true assume 1 == ~T1_E~0;~T1_E~0 := 2; 37#L282-3true assume 1 == ~E_M~0;~E_M~0 := 2; 51#L287-3true assume 1 == ~E_1~0;~E_1~0 := 2; 98#L292-3true havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 131#L178-1true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 91#L190-1true exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 27#L191-1true start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 134#L437true assume !(0 == start_simulation_~tmp~3); 122#L437-1true havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 128#L178-2true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 90#L190-2true exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 26#L191-2true stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 31#L392true assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 107#L399true stop_simulation_#res := stop_simulation_~__retres2~0; 74#L400true start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 20#L450true assume !(0 != start_simulation_~tmp___0~1); 116#L418-1true [2019-12-07 12:17:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:00,999 INFO L82 PathProgramCache]: Analyzing trace with hash 22332154, now seen corresponding path program 1 times [2019-12-07 12:17:01,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555345709] [2019-12-07 12:17:01,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,092 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555345709] [2019-12-07 12:17:01,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:17:01,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354651704] [2019-12-07 12:17:01,096 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:17:01,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1921652372, now seen corresponding path program 1 times [2019-12-07 12:17:01,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803377108] [2019-12-07 12:17:01,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803377108] [2019-12-07 12:17:01,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:17:01,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382437289] [2019-12-07 12:17:01,109 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:01,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:01,121 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 3 states. [2019-12-07 12:17:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,139 INFO L93 Difference]: Finished difference Result 140 states and 208 transitions. [2019-12-07 12:17:01,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:01,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 208 transitions. [2019-12-07 12:17:01,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2019-12-07 12:17:01,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 135 states and 203 transitions. [2019-12-07 12:17:01,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2019-12-07 12:17:01,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-12-07 12:17:01,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 203 transitions. [2019-12-07 12:17:01,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,150 INFO L688 BuchiCegarLoop]: Abstraction has 135 states and 203 transitions. [2019-12-07 12:17:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 203 transitions. [2019-12-07 12:17:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-12-07 12:17:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-12-07 12:17:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 203 transitions. [2019-12-07 12:17:01,174 INFO L711 BuchiCegarLoop]: Abstraction has 135 states and 203 transitions. [2019-12-07 12:17:01,175 INFO L591 BuchiCegarLoop]: Abstraction has 135 states and 203 transitions. [2019-12-07 12:17:01,175 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:17:01,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 203 transitions. [2019-12-07 12:17:01,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2019-12-07 12:17:01,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,178 INFO L849 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] [2019-12-07 12:17:01,178 INFO L850 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] [2019-12-07 12:17:01,178 INFO L794 eck$LassoCheckResult]: Stem: 421#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 297#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 298#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 301#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 302#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 414#L165-1 assume !(0 == ~M_E~0); 354#L249-1 assume !(0 == ~T1_E~0); 355#L254-1 assume !(0 == ~E_M~0); 376#L259-1 assume !(0 == ~E_1~0); 419#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 327#L114 assume !(1 == ~m_pc~0); 313#L114-2 is_master_triggered_~__retres1~0 := 0; 314#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 331#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 403#L309 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 382#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 365#L133 assume 1 == ~t1_pc~0; 366#L134 assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1 := 1; 368#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 369#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 407#L317 assume !(0 != activate_threads_~tmp___0~0); 408#L317-2 assume !(1 == ~M_E~0); 409#L277-1 assume !(1 == ~T1_E~0); 361#L282-1 assume !(1 == ~E_M~0); 362#L287-1 assume 1 == ~E_1~0;~E_1~0 := 2; 319#L418-1 [2019-12-07 12:17:01,178 INFO L796 eck$LassoCheckResult]: Loop: 319#L418-1 assume !false; 399#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 358#L224 assume !false; 383#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 413#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 412#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 377#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 352#L205 assume !(0 != eval_~tmp~0); 353#L239 start_simulation_~kernel_st~0 := 2; 299#L153-1 start_simulation_~kernel_st~0 := 3; 300#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 339#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 340#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 370#L259-3 assume !(0 == ~E_1~0); 416#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 295#L114-9 assume !(1 == ~m_pc~0); 293#L114-11 is_master_triggered_~__retres1~0 := 0; 294#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 307#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 374#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 375#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 325#L133-9 assume !(1 == ~t1_pc~0); 308#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 309#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 393#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 379#L317-9 assume !(0 != activate_threads_~tmp___0~0); 380#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 387#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 350#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 351#L287-3 assume 1 == ~E_1~0;~E_1~0 := 2; 373#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 418#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 411#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 334#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 335#L437 assume !(0 == start_simulation_~tmp~3); 422#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 423#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 405#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 329#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 330#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 341#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 395#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 318#L450 assume !(0 != start_simulation_~tmp___0~1); 319#L418-1 [2019-12-07 12:17:01,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,179 INFO L82 PathProgramCache]: Analyzing trace with hash -196522564, now seen corresponding path program 1 times [2019-12-07 12:17:01,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327779127] [2019-12-07 12:17:01,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327779127] [2019-12-07 12:17:01,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:17:01,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433453221] [2019-12-07 12:17:01,209 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:17:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,209 INFO L82 PathProgramCache]: Analyzing trace with hash 872296882, now seen corresponding path program 1 times [2019-12-07 12:17:01,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15088590] [2019-12-07 12:17:01,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15088590] [2019-12-07 12:17:01,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:01,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530222085] [2019-12-07 12:17:01,242 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:01,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:01,243 INFO L87 Difference]: Start difference. First operand 135 states and 203 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-12-07 12:17:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,272 INFO L93 Difference]: Finished difference Result 224 states and 330 transitions. [2019-12-07 12:17:01,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:01,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 330 transitions. [2019-12-07 12:17:01,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2019-12-07 12:17:01,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 224 states and 330 transitions. [2019-12-07 12:17:01,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2019-12-07 12:17:01,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2019-12-07 12:17:01,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 330 transitions. [2019-12-07 12:17:01,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,278 INFO L688 BuchiCegarLoop]: Abstraction has 224 states and 330 transitions. [2019-12-07 12:17:01,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 330 transitions. [2019-12-07 12:17:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2019-12-07 12:17:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 12:17:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 328 transitions. [2019-12-07 12:17:01,287 INFO L711 BuchiCegarLoop]: Abstraction has 222 states and 328 transitions. [2019-12-07 12:17:01,287 INFO L591 BuchiCegarLoop]: Abstraction has 222 states and 328 transitions. [2019-12-07 12:17:01,287 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:17:01,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 328 transitions. [2019-12-07 12:17:01,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2019-12-07 12:17:01,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,290 INFO L849 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] [2019-12-07 12:17:01,290 INFO L850 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] [2019-12-07 12:17:01,290 INFO L794 eck$LassoCheckResult]: Stem: 792#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 665#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 666#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 669#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 670#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 785#L165-1 assume !(0 == ~M_E~0); 724#L249-1 assume !(0 == ~T1_E~0); 725#L254-1 assume !(0 == ~E_M~0); 744#L259-1 assume !(0 == ~E_1~0); 790#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 694#L114 assume !(1 == ~m_pc~0); 681#L114-2 is_master_triggered_~__retres1~0 := 0; 682#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 700#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 773#L309 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 752#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 734#L133 assume !(1 == ~t1_pc~0); 735#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 736#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 737#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 777#L317 assume !(0 != activate_threads_~tmp___0~0); 778#L317-2 assume !(1 == ~M_E~0); 779#L277-1 assume !(1 == ~T1_E~0); 730#L282-1 assume !(1 == ~E_M~0); 731#L287-1 assume 1 == ~E_1~0;~E_1~0 := 2; 745#L418-1 [2019-12-07 12:17:01,290 INFO L796 eck$LassoCheckResult]: Loop: 745#L418-1 assume !false; 833#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 728#L224 assume !false; 753#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 784#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 825#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 823#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 822#L205 assume !(0 != eval_~tmp~0); 821#L239 start_simulation_~kernel_st~0 := 2; 667#L153-1 start_simulation_~kernel_st~0 := 3; 668#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 706#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 707#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 738#L259-3 assume !(0 == ~E_1~0); 787#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 663#L114-9 assume !(1 == ~m_pc~0); 661#L114-11 is_master_triggered_~__retres1~0 := 0; 662#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 677#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 742#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 743#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 690#L133-9 assume !(1 == ~t1_pc~0); 691#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 870#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 869#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 868#L317-9 assume !(0 != activate_threads_~tmp___0~0); 867#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 798#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 799#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 866#L287-3 assume 1 == ~E_1~0;~E_1~0 := 2; 865#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 864#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 862#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 861#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 859#L437 assume !(0 == start_simulation_~tmp~3); 860#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 873#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 871#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 838#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 837#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 836#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 835#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 834#L450 assume !(0 != start_simulation_~tmp___0~1); 745#L418-1 [2019-12-07 12:17:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1903125501, now seen corresponding path program 1 times [2019-12-07 12:17:01,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495246912] [2019-12-07 12:17:01,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495246912] [2019-12-07 12:17:01,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 12:17:01,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866664759] [2019-12-07 12:17:01,314 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:17:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash 872296882, now seen corresponding path program 2 times [2019-12-07 12:17:01,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138894179] [2019-12-07 12:17:01,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138894179] [2019-12-07 12:17:01,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:01,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117566885] [2019-12-07 12:17:01,342 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:01,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:01,343 INFO L87 Difference]: Start difference. First operand 222 states and 328 transitions. cyclomatic complexity: 108 Second operand 3 states. [2019-12-07 12:17:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,367 INFO L93 Difference]: Finished difference Result 222 states and 317 transitions. [2019-12-07 12:17:01,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:01,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 317 transitions. [2019-12-07 12:17:01,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2019-12-07 12:17:01,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 222 states and 317 transitions. [2019-12-07 12:17:01,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 222 [2019-12-07 12:17:01,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 222 [2019-12-07 12:17:01,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 222 states and 317 transitions. [2019-12-07 12:17:01,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,372 INFO L688 BuchiCegarLoop]: Abstraction has 222 states and 317 transitions. [2019-12-07 12:17:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states and 317 transitions. [2019-12-07 12:17:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2019-12-07 12:17:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 12:17:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 317 transitions. [2019-12-07 12:17:01,380 INFO L711 BuchiCegarLoop]: Abstraction has 222 states and 317 transitions. [2019-12-07 12:17:01,380 INFO L591 BuchiCegarLoop]: Abstraction has 222 states and 317 transitions. [2019-12-07 12:17:01,380 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 12:17:01,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 317 transitions. [2019-12-07 12:17:01,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2019-12-07 12:17:01,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,382 INFO L849 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] [2019-12-07 12:17:01,382 INFO L850 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] [2019-12-07 12:17:01,382 INFO L794 eck$LassoCheckResult]: Stem: 1245#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 1118#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 1119#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 1122#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 1123#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 1237#L165-1 assume !(0 == ~M_E~0); 1175#L249-1 assume !(0 == ~T1_E~0); 1176#L254-1 assume !(0 == ~E_M~0); 1196#L259-1 assume !(0 == ~E_1~0); 1242#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 1147#L114 assume !(1 == ~m_pc~0); 1134#L114-2 is_master_triggered_~__retres1~0 := 0; 1135#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 1153#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 1225#L309 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 1202#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 1186#L133 assume !(1 == ~t1_pc~0); 1187#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 1188#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 1189#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 1229#L317 assume !(0 != activate_threads_~tmp___0~0); 1230#L317-2 assume !(1 == ~M_E~0); 1231#L277-1 assume !(1 == ~T1_E~0); 1182#L282-1 assume !(1 == ~E_M~0); 1183#L287-1 assume !(1 == ~E_1~0); 1140#L418-1 [2019-12-07 12:17:01,382 INFO L796 eck$LassoCheckResult]: Loop: 1140#L418-1 assume !false; 1317#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 1179#L224 assume !false; 1235#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1236#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 1234#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1199#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 1173#L205 assume !(0 != eval_~tmp~0); 1174#L239 start_simulation_~kernel_st~0 := 2; 1120#L153-1 start_simulation_~kernel_st~0 := 3; 1121#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 1159#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 1160#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 1190#L259-3 assume !(0 == ~E_1~0); 1239#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 1267#L114-9 assume !(1 == ~m_pc~0); 1265#L114-11 is_master_triggered_~__retres1~0 := 0; 1264#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 1246#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 1194#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 1195#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 1143#L133-9 assume !(1 == ~t1_pc~0); 1144#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 1316#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 1315#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 1314#L317-9 assume !(0 != activate_threads_~tmp___0~0); 1313#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 1312#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 1169#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 1170#L287-3 assume !(1 == ~E_1~0); 1193#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1241#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 1233#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1154#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 1155#L437 assume !(0 == start_simulation_~tmp~3); 1256#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1324#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 1322#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1321#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 1320#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 1319#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 1318#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 1139#L450 assume !(0 != start_simulation_~tmp___0~1); 1140#L418-1 [2019-12-07 12:17:01,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1903125503, now seen corresponding path program 1 times [2019-12-07 12:17:01,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562888834] [2019-12-07 12:17:01,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562888834] [2019-12-07 12:17:01,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:01,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147246366] [2019-12-07 12:17:01,421 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:17:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,421 INFO L82 PathProgramCache]: Analyzing trace with hash -138820368, now seen corresponding path program 1 times [2019-12-07 12:17:01,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883978497] [2019-12-07 12:17:01,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883978497] [2019-12-07 12:17:01,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:01,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963234367] [2019-12-07 12:17:01,449 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:17:01,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:17:01,449 INFO L87 Difference]: Start difference. First operand 222 states and 317 transitions. cyclomatic complexity: 97 Second operand 5 states. [2019-12-07 12:17:01,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,536 INFO L93 Difference]: Finished difference Result 574 states and 803 transitions. [2019-12-07 12:17:01,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:17:01,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 803 transitions. [2019-12-07 12:17:01,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 519 [2019-12-07 12:17:01,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 574 states and 803 transitions. [2019-12-07 12:17:01,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 574 [2019-12-07 12:17:01,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2019-12-07 12:17:01,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 574 states and 803 transitions. [2019-12-07 12:17:01,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,545 INFO L688 BuchiCegarLoop]: Abstraction has 574 states and 803 transitions. [2019-12-07 12:17:01,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states and 803 transitions. [2019-12-07 12:17:01,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 246. [2019-12-07 12:17:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-12-07 12:17:01,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 341 transitions. [2019-12-07 12:17:01,553 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 341 transitions. [2019-12-07 12:17:01,553 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 341 transitions. [2019-12-07 12:17:01,553 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 12:17:01,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 341 transitions. [2019-12-07 12:17:01,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2019-12-07 12:17:01,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,555 INFO L849 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] [2019-12-07 12:17:01,555 INFO L850 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] [2019-12-07 12:17:01,555 INFO L794 eck$LassoCheckResult]: Stem: 2060#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 1931#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 1932#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 1935#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 1936#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 2052#L165-1 assume !(0 == ~M_E~0); 1988#L249-1 assume !(0 == ~T1_E~0); 1989#L254-1 assume !(0 == ~E_M~0); 2010#L259-1 assume !(0 == ~E_1~0); 2057#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 1960#L114 assume !(1 == ~m_pc~0); 1948#L114-2 is_master_triggered_~__retres1~0 := 0; 1949#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 1962#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 2040#L309 assume !(0 != activate_threads_~tmp~1); 2018#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 1998#L133 assume !(1 == ~t1_pc~0); 1999#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 2000#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 2001#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 2043#L317 assume !(0 != activate_threads_~tmp___0~0); 2044#L317-2 assume !(1 == ~M_E~0); 2046#L277-1 assume !(1 == ~T1_E~0); 1993#L282-1 assume !(1 == ~E_M~0); 1994#L287-1 assume !(1 == ~E_1~0); 2011#L418-1 [2019-12-07 12:17:01,555 INFO L796 eck$LassoCheckResult]: Loop: 2011#L418-1 assume !false; 2141#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 1992#L224 assume !false; 2138#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2137#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 2135#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 2134#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 2133#L205 assume !(0 != eval_~tmp~0); 2063#L239 start_simulation_~kernel_st~0 := 2; 2064#L153-1 start_simulation_~kernel_st~0 := 3; 2139#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 2128#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 2125#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 2115#L259-3 assume !(0 == ~E_1~0); 2110#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 1928#L114-9 assume 1 == ~m_pc~0; 1929#L115-3 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0 := 1; 2108#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 2106#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 2104#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 2095#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 1959#L133-9 assume !(1 == ~t1_pc~0); 1943#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 1944#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 2029#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 2014#L317-9 assume !(0 != activate_threads_~tmp___0~0); 2015#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 2023#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 1981#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 1982#L287-3 assume !(1 == ~E_1~0); 2005#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2056#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 2049#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1967#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 1968#L437 assume !(0 == start_simulation_~tmp~3); 2084#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2161#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 2159#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 2158#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 2157#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 2061#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 2062#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 2143#L450 assume !(0 != start_simulation_~tmp___0~1); 2011#L418-1 [2019-12-07 12:17:01,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1690777215, now seen corresponding path program 1 times [2019-12-07 12:17:01,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54253756] [2019-12-07 12:17:01,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,580 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash 169618641, now seen corresponding path program 1 times [2019-12-07 12:17:01,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021587629] [2019-12-07 12:17:01,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021587629] [2019-12-07 12:17:01,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:01,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744576766] [2019-12-07 12:17:01,604 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:17:01,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:17:01,604 INFO L87 Difference]: Start difference. First operand 246 states and 341 transitions. cyclomatic complexity: 97 Second operand 5 states. [2019-12-07 12:17:01,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,661 INFO L93 Difference]: Finished difference Result 412 states and 560 transitions. [2019-12-07 12:17:01,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:17:01,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 412 states and 560 transitions. [2019-12-07 12:17:01,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 379 [2019-12-07 12:17:01,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 412 states to 412 states and 560 transitions. [2019-12-07 12:17:01,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 412 [2019-12-07 12:17:01,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 412 [2019-12-07 12:17:01,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 412 states and 560 transitions. [2019-12-07 12:17:01,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,668 INFO L688 BuchiCegarLoop]: Abstraction has 412 states and 560 transitions. [2019-12-07 12:17:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states and 560 transitions. [2019-12-07 12:17:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 252. [2019-12-07 12:17:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-07 12:17:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 347 transitions. [2019-12-07 12:17:01,674 INFO L711 BuchiCegarLoop]: Abstraction has 252 states and 347 transitions. [2019-12-07 12:17:01,674 INFO L591 BuchiCegarLoop]: Abstraction has 252 states and 347 transitions. [2019-12-07 12:17:01,674 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 12:17:01,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 347 transitions. [2019-12-07 12:17:01,675 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 221 [2019-12-07 12:17:01,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,676 INFO L849 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] [2019-12-07 12:17:01,676 INFO L850 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, 1] [2019-12-07 12:17:01,676 INFO L794 eck$LassoCheckResult]: Stem: 2733#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 2603#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 2604#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 2607#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 2608#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 2723#L165-1 assume !(0 == ~M_E~0); 2660#L249-1 assume !(0 == ~T1_E~0); 2661#L254-1 assume !(0 == ~E_M~0); 2682#L259-1 assume !(0 == ~E_1~0); 2730#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 2632#L114 assume !(1 == ~m_pc~0); 2620#L114-2 is_master_triggered_~__retres1~0 := 0; 2621#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 2740#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 2712#L309 assume !(0 != activate_threads_~tmp~1); 2689#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 2671#L133 assume !(1 == ~t1_pc~0); 2672#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 2673#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 2674#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 2715#L317 assume !(0 != activate_threads_~tmp___0~0); 2716#L317-2 assume !(1 == ~M_E~0); 2718#L277-1 assume !(1 == ~T1_E~0); 2665#L282-1 assume !(1 == ~E_M~0); 2666#L287-1 assume !(1 == ~E_1~0); 2683#L418-1 [2019-12-07 12:17:01,676 INFO L796 eck$LassoCheckResult]: Loop: 2683#L418-1 assume !false; 2831#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 2664#L224 assume !false; 2830#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2747#L178 assume !(0 == ~m_st~0); 2727#L182 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2 := 0; 2728#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 2805#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 2804#L205 assume !(0 != eval_~tmp~0); 2734#L239 start_simulation_~kernel_st~0 := 2; 2605#L153-1 start_simulation_~kernel_st~0 := 3; 2606#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 2795#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 2675#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 2676#L259-3 assume !(0 == ~E_1~0); 2731#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 2601#L114-9 assume !(1 == ~m_pc~0); 2599#L114-11 is_master_triggered_~__retres1~0 := 0; 2600#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 2794#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 2680#L309-9 assume !(0 != activate_threads_~tmp~1); 2681#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 2631#L133-9 assume !(1 == ~t1_pc~0); 2615#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 2616#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 2701#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 2685#L317-9 assume !(0 != activate_threads_~tmp___0~0); 2686#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 2695#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 2748#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 2786#L287-3 assume !(1 == ~E_1~0); 2785#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2784#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 2782#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 2780#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 2777#L437 assume !(0 == start_simulation_~tmp~3); 2778#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 2746#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 2714#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 2638#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 2639#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 2647#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 2703#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 2704#L450 assume !(0 != start_simulation_~tmp___0~1); 2683#L418-1 [2019-12-07 12:17:01,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1690777215, now seen corresponding path program 2 times [2019-12-07 12:17:01,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839293894] [2019-12-07 12:17:01,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,688 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:01,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1964847471, now seen corresponding path program 1 times [2019-12-07 12:17:01,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144104005] [2019-12-07 12:17:01,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144104005] [2019-12-07 12:17:01,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:17:01,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748206471] [2019-12-07 12:17:01,708 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:01,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:01,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:01,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:01,708 INFO L87 Difference]: Start difference. First operand 252 states and 347 transitions. cyclomatic complexity: 97 Second operand 3 states. [2019-12-07 12:17:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:01,736 INFO L93 Difference]: Finished difference Result 401 states and 540 transitions. [2019-12-07 12:17:01,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:01,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 401 states and 540 transitions. [2019-12-07 12:17:01,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 368 [2019-12-07 12:17:01,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 401 states to 401 states and 540 transitions. [2019-12-07 12:17:01,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2019-12-07 12:17:01,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2019-12-07 12:17:01,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 540 transitions. [2019-12-07 12:17:01,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:01,742 INFO L688 BuchiCegarLoop]: Abstraction has 401 states and 540 transitions. [2019-12-07 12:17:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 540 transitions. [2019-12-07 12:17:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 386. [2019-12-07 12:17:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-12-07 12:17:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 521 transitions. [2019-12-07 12:17:01,749 INFO L711 BuchiCegarLoop]: Abstraction has 386 states and 521 transitions. [2019-12-07 12:17:01,749 INFO L591 BuchiCegarLoop]: Abstraction has 386 states and 521 transitions. [2019-12-07 12:17:01,749 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 12:17:01,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 386 states and 521 transitions. [2019-12-07 12:17:01,750 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 353 [2019-12-07 12:17:01,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:01,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:01,751 INFO L849 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] [2019-12-07 12:17:01,751 INFO L850 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, 1] [2019-12-07 12:17:01,752 INFO L794 eck$LassoCheckResult]: Stem: 3400#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 3262#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 3263#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 3266#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 3267#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 3390#L165-1 assume !(0 == ~M_E~0); 3319#L249-1 assume !(0 == ~T1_E~0); 3320#L254-1 assume !(0 == ~E_M~0); 3341#L259-1 assume !(0 == ~E_1~0); 3397#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 3290#L114 assume !(1 == ~m_pc~0); 3278#L114-2 is_master_triggered_~__retres1~0 := 0; 3279#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 3296#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 3378#L309 assume !(0 != activate_threads_~tmp~1); 3352#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 3331#L133 assume !(1 == ~t1_pc~0); 3332#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 3333#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 3334#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 3382#L317 assume !(0 != activate_threads_~tmp___0~0); 3383#L317-2 assume !(1 == ~M_E~0); 3384#L277-1 assume !(1 == ~T1_E~0); 3327#L282-1 assume !(1 == ~E_M~0); 3328#L287-1 assume !(1 == ~E_1~0); 3342#L418-1 [2019-12-07 12:17:01,752 INFO L796 eck$LassoCheckResult]: Loop: 3342#L418-1 assume !false; 3576#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 3562#L224 assume !false; 3569#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3565#L178 assume !(0 == ~m_st~0); 3426#L182 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2 := 0; 3462#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3461#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 3460#L205 assume !(0 != eval_~tmp~0); 3459#L239 start_simulation_~kernel_st~0 := 2; 3458#L153-1 start_simulation_~kernel_st~0 := 3; 3315#L249-2 assume 0 == ~M_E~0;~M_E~0 := 1; 3316#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 3454#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 3453#L259-3 assume !(0 == ~E_1~0); 3398#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 3260#L114-9 assume 1 == ~m_pc~0; 3261#L115-3 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0 := 1; 3405#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 3406#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 3407#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 3343#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 3287#L133-9 assume !(1 == ~t1_pc~0); 3272#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 3273#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 3363#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 3606#L317-9 assume !(0 != activate_threads_~tmp___0~0); 3603#L317-11 assume 1 == ~M_E~0;~M_E~0 := 2; 3424#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 3425#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 3597#L287-3 assume !(1 == ~E_1~0); 3594#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3578#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 3575#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3572#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 3568#L437 assume !(0 == start_simulation_~tmp~3); 3564#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3559#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 3560#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3588#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 3586#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 3584#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 3582#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 3580#L450 assume !(0 != start_simulation_~tmp___0~1); 3342#L418-1 [2019-12-07 12:17:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1690777215, now seen corresponding path program 3 times [2019-12-07 12:17:01,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630309334] [2019-12-07 12:17:01,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:01,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1522394956, now seen corresponding path program 1 times [2019-12-07 12:17:01,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455002771] [2019-12-07 12:17:01,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:01,776 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -711810508, now seen corresponding path program 1 times [2019-12-07 12:17:01,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:01,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52899395] [2019-12-07 12:17:01,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:01,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52899395] [2019-12-07 12:17:01,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:01,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:17:01,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714287326] [2019-12-07 12:17:01,983 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-12-07 12:17:02,046 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:17:02,046 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:17:02,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:17:02,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:17:02,047 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:17:02,047 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,047 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:17:02,047 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:17:02,047 INFO L133 ssoRankerPreferences]: Filename of dumped script: token_ring.01.cil-1.c_Iteration7_Loop [2019-12-07 12:17:02,047 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:17:02,047 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:17:02,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,279 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:17:02,279 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,290 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,290 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~ret1=0} Honda state: {ULTIMATE.start_eval_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,300 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,316 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_activate_threads_#t~ret5=0} Honda state: {ULTIMATE.start_activate_threads_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,323 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~t1_pc~0=-8} Honda state: {~t1_pc~0=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~E_1~0=3} Honda state: {~E_1~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,344 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_activate_threads_~tmp~1=1, ULTIMATE.start_is_master_triggered_#res=1, ULTIMATE.start_is_master_triggered_~__retres1~0=1} Honda state: {ULTIMATE.start_activate_threads_~tmp~1=1, ULTIMATE.start_is_master_triggered_#res=1, ULTIMATE.start_is_master_triggered_~__retres1~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,351 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_stop_simulation_#t~ret6=0} Honda state: {ULTIMATE.start_stop_simulation_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,359 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_#t~ret8=0} Honda state: {ULTIMATE.start_start_simulation_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,366 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet2=0} Honda state: {ULTIMATE.start_eval_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,373 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet3=0} Honda state: {ULTIMATE.start_eval_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,380 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,380 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_stop_simulation_~__retres2~0=0} Honda state: {ULTIMATE.start_stop_simulation_~__retres2~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_exists_runnable_thread_~__retres1~2=1, ULTIMATE.start_stop_simulation_~tmp~2=1, ULTIMATE.start_exists_runnable_thread_#res=1} Honda state: {ULTIMATE.start_exists_runnable_thread_~__retres1~2=1, ULTIMATE.start_stop_simulation_~tmp~2=1, ULTIMATE.start_exists_runnable_thread_#res=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~t1_st~0=-5} Honda state: {~t1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,406 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:02,406 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_activate_threads_#t~ret4=0} Honda state: {ULTIMATE.start_activate_threads_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:02,412 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:17:02,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:02,436 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:17:02,437 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:17:02,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:17:02,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:17:02,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:17:02,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:17:02,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:17:02,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:17:02,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: token_ring.01.cil-1.c_Iteration7_Loop [2019-12-07 12:17:02,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:17:02,438 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:17:02,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:02,664 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:17:02,668 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,709 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 12:17:02,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,710 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 12:17:02,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,717 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 12:17:02,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,718 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 12:17:02,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,787 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 12:17:02,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,788 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 12:17:02,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,795 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 12:17:02,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,796 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 12:17:02,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:02,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:02,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:02,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:02,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:02,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:02,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:02,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:02,837 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:17:02,840 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:17:02,840 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:02,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:17:02,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:17:02,848 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:17:02,848 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~M_E~0) = -1*~M_E~0 + 1 Supporting invariants [] [2019-12-07 12:17:02,851 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:17:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:02,882 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:17:02,884 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:02,900 INFO L264 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:17:02,902 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:02,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 12:17:02,931 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 386 states and 521 transitions. cyclomatic complexity: 137 Second operand 5 states. [2019-12-07 12:17:02,982 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 386 states and 521 transitions. cyclomatic complexity: 137. Second operand 5 states. Result 950 states and 1288 transitions. Complement of second has 5 states. [2019-12-07 12:17:02,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:17:02,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:17:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2019-12-07 12:17:02,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 170 transitions. Stem has 25 letters. Loop has 44 letters. [2019-12-07 12:17:02,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:02,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 170 transitions. Stem has 69 letters. Loop has 44 letters. [2019-12-07 12:17:02,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:02,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 170 transitions. Stem has 25 letters. Loop has 88 letters. [2019-12-07 12:17:02,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:02,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 950 states and 1288 transitions. [2019-12-07 12:17:02,998 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 624 [2019-12-07 12:17:03,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 950 states to 950 states and 1288 transitions. [2019-12-07 12:17:03,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 662 [2019-12-07 12:17:03,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 669 [2019-12-07 12:17:03,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 950 states and 1288 transitions. [2019-12-07 12:17:03,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:03,007 INFO L688 BuchiCegarLoop]: Abstraction has 950 states and 1288 transitions. [2019-12-07 12:17:03,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states and 1288 transitions. [2019-12-07 12:17:03,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 943. [2019-12-07 12:17:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2019-12-07 12:17:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1275 transitions. [2019-12-07 12:17:03,026 INFO L711 BuchiCegarLoop]: Abstraction has 943 states and 1275 transitions. [2019-12-07 12:17:03,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:03,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:03,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:03,027 INFO L87 Difference]: Start difference. First operand 943 states and 1275 transitions. Second operand 3 states. [2019-12-07 12:17:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:03,053 INFO L93 Difference]: Finished difference Result 988 states and 1308 transitions. [2019-12-07 12:17:03,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:03,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 988 states and 1308 transitions. [2019-12-07 12:17:03,060 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 654 [2019-12-07 12:17:03,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 988 states to 988 states and 1308 transitions. [2019-12-07 12:17:03,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 692 [2019-12-07 12:17:03,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 692 [2019-12-07 12:17:03,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 988 states and 1308 transitions. [2019-12-07 12:17:03,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:03,069 INFO L688 BuchiCegarLoop]: Abstraction has 988 states and 1308 transitions. [2019-12-07 12:17:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states and 1308 transitions. [2019-12-07 12:17:03,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 943. [2019-12-07 12:17:03,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2019-12-07 12:17:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1251 transitions. [2019-12-07 12:17:03,087 INFO L711 BuchiCegarLoop]: Abstraction has 943 states and 1251 transitions. [2019-12-07 12:17:03,087 INFO L591 BuchiCegarLoop]: Abstraction has 943 states and 1251 transitions. [2019-12-07 12:17:03,087 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 12:17:03,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 943 states and 1251 transitions. [2019-12-07 12:17:03,091 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 624 [2019-12-07 12:17:03,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:03,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:03,092 INFO L849 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] [2019-12-07 12:17:03,092 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:17:03,093 INFO L794 eck$LassoCheckResult]: Stem: 7007#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 6765#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 6766#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 6771#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 6772#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 6988#L165-1 assume !(0 == ~M_E~0); 6865#L249-1 assume !(0 == ~T1_E~0); 6866#L254-1 assume !(0 == ~E_M~0); 6901#L259-1 assume !(0 == ~E_1~0); 7004#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 6815#L114 assume !(1 == ~m_pc~0); 6792#L114-2 is_master_triggered_~__retres1~0 := 0; 6793#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 6825#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 6967#L309 assume !(0 != activate_threads_~tmp~1); 6926#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 6882#L133 assume !(1 == ~t1_pc~0); 6883#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 6884#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 6885#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 6973#L317 assume !(0 != activate_threads_~tmp___0~0); 6974#L317-2 assume !(1 == ~M_E~0); 6975#L277-1 assume !(1 == ~T1_E~0); 6876#L282-1 assume !(1 == ~E_M~0); 6877#L287-1 assume !(1 == ~E_1~0); 6902#L418-1 assume !false; 7188#L419 [2019-12-07 12:17:03,093 INFO L796 eck$LassoCheckResult]: Loop: 7188#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 7583#L224 assume !false; 7581#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 7580#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 7579#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 7578#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 7577#L205 assume 0 != eval_~tmp~0; 7576#L205-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0;eval_~tmp_ndt_1~0 := eval_#t~nondet2;havoc eval_#t~nondet2; 7574#L213 assume 0 != eval_~tmp_ndt_1~0;~m_st~0 := 1;havoc master_#t~nondet0; 7572#L34 assume 0 == ~m_pc~0; 7570#L59 assume !false; 7569#L46 ~token~0 := master_#t~nondet0;havoc master_#t~nondet0;~local~0 := ~token~0;~E_1~0 := 1;havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 7568#L114-3 assume !(1 == ~m_pc~0); 7565#L114-5 is_master_triggered_~__retres1~0 := 0; 7564#L125-1 is_master_triggered_#res := is_master_triggered_~__retres1~0; 7563#L126-1 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 7562#L309-3 assume !(0 != activate_threads_~tmp~1); 7560#L309-5 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 7559#L133-3 assume !(1 == ~t1_pc~0); 7558#L133-5 is_transmit1_triggered_~__retres1~1 := 0; 7557#L144-1 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 7556#L145-1 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 7555#L317-3 assume 0 != activate_threads_~tmp___0~0;~t1_st~0 := 0; 6958#L317-5 ~E_1~0 := 2;~m_pc~0 := 1;~m_st~0 := 2; 6844#L210 assume !(0 == ~t1_st~0); 6869#L224 assume !false; 7391#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 7389#L178 assume !(0 == ~m_st~0); 7386#L182 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2 := 0; 7383#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 7381#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 7379#L205 assume !(0 != eval_~tmp~0); 7376#L239 start_simulation_~kernel_st~0 := 2; 7374#L153-1 start_simulation_~kernel_st~0 := 3; 7372#L249-2 assume !(0 == ~M_E~0); 7370#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 7240#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 7367#L259-3 assume !(0 == ~E_1~0); 7365#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 7363#L114-9 assume 1 == ~m_pc~0; 7360#L115-3 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0 := 1; 7357#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 7355#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 7352#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 7349#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 7347#L133-9 assume !(1 == ~t1_pc~0); 7345#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 7343#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 7341#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 7339#L317-9 assume !(0 != activate_threads_~tmp___0~0); 7336#L317-11 assume !(1 == ~M_E~0); 7337#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 7333#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 7600#L287-3 assume !(1 == ~E_1~0); 7599#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 7598#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 7597#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 7596#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 7595#L437 assume !(0 == start_simulation_~tmp~3); 7594#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 7593#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 7592#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 7591#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 7590#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 7589#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 7588#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 7587#L450 assume !(0 != start_simulation_~tmp___0~1); 7586#L418-1 assume !false; 7188#L419 [2019-12-07 12:17:03,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:03,093 INFO L82 PathProgramCache]: Analyzing trace with hash -874485989, now seen corresponding path program 1 times [2019-12-07 12:17:03,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:03,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648874473] [2019-12-07 12:17:03,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,102 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1093962113, now seen corresponding path program 1 times [2019-12-07 12:17:03,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:03,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44777887] [2019-12-07 12:17:03,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:03,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44777887] [2019-12-07 12:17:03,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:03,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:17:03,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82501131] [2019-12-07 12:17:03,131 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:17:03,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:03,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:17:03,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:17:03,131 INFO L87 Difference]: Start difference. First operand 943 states and 1251 transitions. cyclomatic complexity: 314 Second operand 5 states. [2019-12-07 12:17:03,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:03,187 INFO L93 Difference]: Finished difference Result 1176 states and 1534 transitions. [2019-12-07 12:17:03,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:17:03,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1176 states and 1534 transitions. [2019-12-07 12:17:03,195 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 778 [2019-12-07 12:17:03,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1176 states to 1176 states and 1534 transitions. [2019-12-07 12:17:03,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 816 [2019-12-07 12:17:03,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 816 [2019-12-07 12:17:03,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1176 states and 1534 transitions. [2019-12-07 12:17:03,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:03,204 INFO L688 BuchiCegarLoop]: Abstraction has 1176 states and 1534 transitions. [2019-12-07 12:17:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states and 1534 transitions. [2019-12-07 12:17:03,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 952. [2019-12-07 12:17:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2019-12-07 12:17:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1234 transitions. [2019-12-07 12:17:03,219 INFO L711 BuchiCegarLoop]: Abstraction has 952 states and 1234 transitions. [2019-12-07 12:17:03,219 INFO L591 BuchiCegarLoop]: Abstraction has 952 states and 1234 transitions. [2019-12-07 12:17:03,219 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 12:17:03,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 952 states and 1234 transitions. [2019-12-07 12:17:03,222 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 630 [2019-12-07 12:17:03,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:03,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:03,222 INFO L849 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] [2019-12-07 12:17:03,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:17:03,223 INFO L794 eck$LassoCheckResult]: Stem: 9131#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 8896#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 8897#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 8902#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 8903#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 9116#L165-1 assume !(0 == ~M_E~0); 8995#L249-1 assume !(0 == ~T1_E~0); 8996#L254-1 assume !(0 == ~E_M~0); 9027#L259-1 assume !(0 == ~E_1~0); 9128#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 8948#L114 assume !(1 == ~m_pc~0); 8925#L114-2 is_master_triggered_~__retres1~0 := 0; 8926#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 8958#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 9096#L309 assume !(0 != activate_threads_~tmp~1); 9053#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 9011#L133 assume !(1 == ~t1_pc~0); 9012#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 9013#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 9014#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 9102#L317 assume !(0 != activate_threads_~tmp___0~0); 9103#L317-2 assume !(1 == ~M_E~0); 9104#L277-1 assume !(1 == ~T1_E~0); 9005#L282-1 assume !(1 == ~E_M~0); 9006#L287-1 assume !(1 == ~E_1~0); 9028#L418-1 assume !false; 9265#L419 [2019-12-07 12:17:03,223 INFO L796 eck$LassoCheckResult]: Loop: 9265#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 9723#L224 assume !false; 9722#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9721#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 9720#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9719#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 9718#L205 assume 0 != eval_~tmp~0; 9717#L205-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0;eval_~tmp_ndt_1~0 := eval_#t~nondet2;havoc eval_#t~nondet2; 9715#L213 assume 0 != eval_~tmp_ndt_1~0;~m_st~0 := 1;havoc master_#t~nondet0; 9064#L34 assume 0 == ~m_pc~0; 8921#L59 assume !false; 8927#L46 ~token~0 := master_#t~nondet0;havoc master_#t~nondet0;~local~0 := ~token~0;~E_1~0 := 1;havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 8906#L114-3 assume !(1 == ~m_pc~0); 8907#L114-5 is_master_triggered_~__retres1~0 := 0; 8994#L125-1 is_master_triggered_#res := is_master_triggered_~__retres1~0; 9591#L126-1 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 9057#L309-3 assume !(0 != activate_threads_~tmp~1); 9058#L309-5 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 9679#L133-3 assume !(1 == ~t1_pc~0); 9677#L133-5 is_transmit1_triggered_~__retres1~1 := 0; 9675#L144-1 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 9673#L145-1 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 9672#L317-3 assume !(0 != activate_threads_~tmp___0~0); 9659#L317-5 ~E_1~0 := 2;~m_pc~0 := 1;~m_st~0 := 2; 9648#L210 assume !(0 == ~t1_st~0); 9646#L224 assume !false; 9644#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9642#L178 assume !(0 == ~m_st~0); 9639#L182 assume !(0 == ~t1_st~0);exists_runnable_thread_~__retres1~2 := 0; 9636#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9631#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 9628#L205 assume !(0 != eval_~tmp~0); 9626#L239 start_simulation_~kernel_st~0 := 2; 9624#L153-1 start_simulation_~kernel_st~0 := 3; 9610#L249-2 assume !(0 == ~M_E~0); 9607#L249-4 assume 0 == ~T1_E~0;~T1_E~0 := 1; 9602#L254-3 assume 0 == ~E_M~0;~E_M~0 := 1; 9603#L259-3 assume !(0 == ~E_1~0); 9714#L264-3 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 9713#L114-9 assume 1 == ~m_pc~0; 9693#L115-3 assume 1 == ~E_M~0;is_master_triggered_~__retres1~0 := 1; 9692#L125-3 is_master_triggered_#res := is_master_triggered_~__retres1~0; 9684#L126-3 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 9681#L309-9 assume 0 != activate_threads_~tmp~1;~m_st~0 := 0; 9670#L309-11 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 9666#L133-9 assume !(1 == ~t1_pc~0); 9661#L133-11 is_transmit1_triggered_~__retres1~1 := 0; 9655#L144-3 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 9187#L145-3 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 9036#L317-9 assume !(0 != activate_threads_~tmp___0~0); 9037#L317-11 assume !(1 == ~M_E~0); 9054#L277-3 assume 1 == ~T1_E~0;~T1_E~0 := 2; 9741#L282-3 assume 1 == ~E_M~0;~E_M~0 := 2; 9740#L287-3 assume !(1 == ~E_1~0); 9739#L292-3 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9738#L178-1 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 9737#L190-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9736#L191-1 start_simulation_#t~ret7 := exists_runnable_thread_#res;start_simulation_~tmp~3 := start_simulation_#t~ret7;havoc start_simulation_#t~ret7; 9735#L437 assume !(0 == start_simulation_~tmp~3); 9734#L437-1 havoc stop_simulation_#res;havoc stop_simulation_#t~ret6, stop_simulation_~tmp~2, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~2;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9733#L178-2 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 9732#L190-2 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9731#L191-2 stop_simulation_#t~ret6 := exists_runnable_thread_#res;stop_simulation_~tmp~2 := stop_simulation_#t~ret6;havoc stop_simulation_#t~ret6; 9730#L392 assume 0 != stop_simulation_~tmp~2;stop_simulation_~__retres2~0 := 0; 9729#L399 stop_simulation_#res := stop_simulation_~__retres2~0; 9728#L400 start_simulation_#t~ret8 := stop_simulation_#res;start_simulation_~tmp___0~1 := start_simulation_#t~ret8;havoc start_simulation_#t~ret8; 9727#L450 assume !(0 != start_simulation_~tmp___0~1); 9726#L418-1 assume !false; 9265#L419 [2019-12-07 12:17:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:03,223 INFO L82 PathProgramCache]: Analyzing trace with hash -874485989, now seen corresponding path program 2 times [2019-12-07 12:17:03,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:03,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627472577] [2019-12-07 12:17:03,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:03,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:03,230 INFO L82 PathProgramCache]: Analyzing trace with hash 834310589, now seen corresponding path program 1 times [2019-12-07 12:17:03,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:03,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391841118] [2019-12-07 12:17:03,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:03,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:03,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1621101527, now seen corresponding path program 1 times [2019-12-07 12:17:03,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:03,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369589806] [2019-12-07 12:17:03,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:03,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369589806] [2019-12-07 12:17:03,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:03,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:17:03,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194807915] [2019-12-07 12:17:03,506 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 114 [2019-12-07 12:17:03,552 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:17:03,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:17:03,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:17:03,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:17:03,552 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:17:03,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:17:03,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:17:03,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: token_ring.01.cil-1.c_Iteration9_Loop [2019-12-07 12:17:03,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:17:03,552 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:17:03,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,806 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:17:03,806 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:03,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:03,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:03,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~ret1=0} Honda state: {ULTIMATE.start_eval_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:03,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:03,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:03,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_activate_threads_~tmp___0~0=0, ULTIMATE.start_is_transmit1_triggered_~__retres1~1=0, ULTIMATE.start_is_transmit1_triggered_#res=0} Honda state: {ULTIMATE.start_activate_threads_~tmp___0~0=0, ULTIMATE.start_is_transmit1_triggered_~__retres1~1=0, ULTIMATE.start_is_transmit1_triggered_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:03,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:03,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:17:03,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_#t~ret8=0} Honda state: {ULTIMATE.start_start_simulation_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:17:03,829 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:17:03,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:17:03,839 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:17:03,840 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:17:03,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:17:03,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:17:03,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:17:03,840 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:17:03,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:03,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:17:03,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:17:03,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: token_ring.01.cil-1.c_Iteration9_Loop [2019-12-07 12:17:03,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:17:03,841 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:17:03,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:03,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:04,047 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:17:04,047 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:04,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:04,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:04,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:04,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:04,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:04,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:04,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:04,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:04,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:04,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:04,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:04,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:04,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:04,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:04,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:04,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:04,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:04,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:04,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:04,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:04,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:04,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:04,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:04,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:04,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:04,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:04,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:04,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:04,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:04,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:04,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:04,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:04,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:04,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:04,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:04,073 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:17:04,075 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:17:04,075 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:04,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:17:04,078 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:17:04,078 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:17:04,078 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~E_M~0) = -1*~E_M~0 + 1 Supporting invariants [] [2019-12-07 12:17:04,079 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:17:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:04,098 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:17:04,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:04,114 INFO L264 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:17:04,116 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:04,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 12:17:04,134 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 12:17:04,134 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 952 states and 1234 transitions. cyclomatic complexity: 288 Second operand 5 states. [2019-12-07 12:17:04,173 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 952 states and 1234 transitions. cyclomatic complexity: 288. Second operand 5 states. Result 2248 states and 2914 transitions. Complement of second has 5 states. [2019-12-07 12:17:04,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:17:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:17:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2019-12-07 12:17:04,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 174 transitions. Stem has 26 letters. Loop has 68 letters. [2019-12-07 12:17:04,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:04,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 174 transitions. Stem has 94 letters. Loop has 68 letters. [2019-12-07 12:17:04,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:04,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 174 transitions. Stem has 26 letters. Loop has 136 letters. [2019-12-07 12:17:04,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:04,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2248 states and 2914 transitions. [2019-12-07 12:17:04,184 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 924 [2019-12-07 12:17:04,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2248 states to 2242 states and 2908 transitions. [2019-12-07 12:17:04,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 973 [2019-12-07 12:17:04,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 990 [2019-12-07 12:17:04,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2242 states and 2908 transitions. [2019-12-07 12:17:04,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:04,197 INFO L688 BuchiCegarLoop]: Abstraction has 2242 states and 2908 transitions. [2019-12-07 12:17:04,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states and 2908 transitions. [2019-12-07 12:17:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2207. [2019-12-07 12:17:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2019-12-07 12:17:04,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2867 transitions. [2019-12-07 12:17:04,223 INFO L711 BuchiCegarLoop]: Abstraction has 2207 states and 2867 transitions. [2019-12-07 12:17:04,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:04,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:04,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:04,223 INFO L87 Difference]: Start difference. First operand 2207 states and 2867 transitions. Second operand 3 states. [2019-12-07 12:17:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:04,246 INFO L93 Difference]: Finished difference Result 3230 states and 4100 transitions. [2019-12-07 12:17:04,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:04,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3230 states and 4100 transitions. [2019-12-07 12:17:04,259 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 1254 [2019-12-07 12:17:04,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3230 states to 3230 states and 4100 transitions. [2019-12-07 12:17:04,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1435 [2019-12-07 12:17:04,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1435 [2019-12-07 12:17:04,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3230 states and 4100 transitions. [2019-12-07 12:17:04,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:04,276 INFO L688 BuchiCegarLoop]: Abstraction has 3230 states and 4100 transitions. [2019-12-07 12:17:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states and 4100 transitions. [2019-12-07 12:17:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3148. [2019-12-07 12:17:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2019-12-07 12:17:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4012 transitions. [2019-12-07 12:17:04,310 INFO L711 BuchiCegarLoop]: Abstraction has 3148 states and 4012 transitions. [2019-12-07 12:17:04,310 INFO L591 BuchiCegarLoop]: Abstraction has 3148 states and 4012 transitions. [2019-12-07 12:17:04,310 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 12:17:04,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3148 states and 4012 transitions. [2019-12-07 12:17:04,318 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 1254 [2019-12-07 12:17:04,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:04,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:04,319 INFO L849 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] [2019-12-07 12:17:04,319 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:17:04,319 INFO L794 eck$LassoCheckResult]: Stem: 18100#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 17845#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 17846#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 17851#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 17852#L160-1 assume !(1 == ~t1_i~0);~t1_st~0 := 2; 18082#L165-1 assume !(0 == ~M_E~0); 17948#L249-1 assume !(0 == ~T1_E~0); 17949#L254-1 assume !(0 == ~E_M~0); 17988#L259-1 assume !(0 == ~E_1~0); 18096#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 17897#L114 assume !(1 == ~m_pc~0); 17874#L114-2 is_master_triggered_~__retres1~0 := 0; 17875#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 17907#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 18061#L309 assume !(0 != activate_threads_~tmp~1); 18014#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 17964#L133 assume !(1 == ~t1_pc~0); 17965#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 17966#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 17967#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 18141#L317 assume !(0 != activate_threads_~tmp___0~0); 19367#L317-2 assume !(1 == ~M_E~0); 19365#L277-1 assume !(1 == ~T1_E~0); 19363#L282-1 assume !(1 == ~E_M~0); 19351#L287-1 assume !(1 == ~E_1~0); 19352#L418-1 assume !false; 19885#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 18926#L224 [2019-12-07 12:17:04,319 INFO L796 eck$LassoCheckResult]: Loop: 18926#L224 assume !false; 19344#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 19342#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 19340#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 19338#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 19336#L205 assume 0 != eval_~tmp~0; 19334#L205-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0;eval_~tmp_ndt_1~0 := eval_#t~nondet2;havoc eval_#t~nondet2; 19332#L213 assume !(0 != eval_~tmp_ndt_1~0); 18925#L210 assume !(0 == ~t1_st~0); 18926#L224 [2019-12-07 12:17:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1150267205, now seen corresponding path program 1 times [2019-12-07 12:17:04,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:04,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016562536] [2019-12-07 12:17:04,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:04,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016562536] [2019-12-07 12:17:04,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:17:04,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:17:04,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601927651] [2019-12-07 12:17:04,328 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:17:04,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1331441589, now seen corresponding path program 1 times [2019-12-07 12:17:04,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:04,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047577744] [2019-12-07 12:17:04,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,332 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:04,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:17:04,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:17:04,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:17:04,360 INFO L87 Difference]: Start difference. First operand 3148 states and 4012 transitions. cyclomatic complexity: 888 Second operand 3 states. [2019-12-07 12:17:04,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:17:04,366 INFO L93 Difference]: Finished difference Result 2179 states and 2783 transitions. [2019-12-07 12:17:04,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:17:04,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2179 states and 2783 transitions. [2019-12-07 12:17:04,375 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 980 [2019-12-07 12:17:04,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2179 states to 2179 states and 2783 transitions. [2019-12-07 12:17:04,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1039 [2019-12-07 12:17:04,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1039 [2019-12-07 12:17:04,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2179 states and 2783 transitions. [2019-12-07 12:17:04,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:17:04,386 INFO L688 BuchiCegarLoop]: Abstraction has 2179 states and 2783 transitions. [2019-12-07 12:17:04,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states and 2783 transitions. [2019-12-07 12:17:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2019-12-07 12:17:04,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2179 states. [2019-12-07 12:17:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2783 transitions. [2019-12-07 12:17:04,409 INFO L711 BuchiCegarLoop]: Abstraction has 2179 states and 2783 transitions. [2019-12-07 12:17:04,409 INFO L591 BuchiCegarLoop]: Abstraction has 2179 states and 2783 transitions. [2019-12-07 12:17:04,409 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 12:17:04,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2179 states and 2783 transitions. [2019-12-07 12:17:04,413 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 980 [2019-12-07 12:17:04,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:04,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:04,414 INFO L849 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] [2019-12-07 12:17:04,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:17:04,414 INFO L794 eck$LassoCheckResult]: Stem: 23430#ULTIMATE.startENTRY ~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_M~0 := 2;~E_1~0 := 2;~token~0 := 0;~local~0 := 0; 23177#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~m_i~0 := 1;~t1_i~0 := 1; 23178#L381 havoc start_simulation_#t~ret7, start_simulation_#t~ret8, start_simulation_~kernel_st~0, start_simulation_~tmp~3, start_simulation_~tmp___0~1;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~3;havoc start_simulation_~tmp___0~1;start_simulation_~kernel_st~0 := 0; 23183#L153 assume 1 == ~m_i~0;~m_st~0 := 0; 23184#L160-1 assume 1 == ~t1_i~0;~t1_st~0 := 0; 23411#L165-1 assume !(0 == ~M_E~0); 23281#L249-1 assume !(0 == ~T1_E~0); 23282#L254-1 assume !(0 == ~E_M~0); 23319#L259-1 assume !(0 == ~E_1~0); 23426#L264-1 havoc activate_threads_#t~ret4, activate_threads_#t~ret5, activate_threads_~tmp~1, activate_threads_~tmp___0~0;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~0;havoc is_master_triggered_#res;havoc is_master_triggered_~__retres1~0;havoc is_master_triggered_~__retres1~0; 23230#L114 assume !(1 == ~m_pc~0); 23206#L114-2 is_master_triggered_~__retres1~0 := 0; 23207#L125 is_master_triggered_#res := is_master_triggered_~__retres1~0; 23232#L126 activate_threads_#t~ret4 := is_master_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret4;havoc activate_threads_#t~ret4; 23388#L309 assume !(0 != activate_threads_~tmp~1); 23338#L309-2 havoc is_transmit1_triggered_#res;havoc is_transmit1_triggered_~__retres1~1;havoc is_transmit1_triggered_~__retres1~1; 23299#L133 assume !(1 == ~t1_pc~0); 23300#L133-2 is_transmit1_triggered_~__retres1~1 := 0; 23301#L144 is_transmit1_triggered_#res := is_transmit1_triggered_~__retres1~1; 23302#L145 activate_threads_#t~ret5 := is_transmit1_triggered_#res;activate_threads_~tmp___0~0 := activate_threads_#t~ret5;havoc activate_threads_#t~ret5; 23393#L317 assume !(0 != activate_threads_~tmp___0~0); 23394#L317-2 assume !(1 == ~M_E~0); 23397#L277-1 assume !(1 == ~T1_E~0); 23289#L282-1 assume !(1 == ~E_M~0); 23290#L287-1 assume !(1 == ~E_1~0); 23320#L418-1 assume !false; 23649#L419 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret1, eval_#t~nondet2, eval_~tmp_ndt_1~0, eval_#t~nondet3, eval_~tmp_ndt_2~0, eval_~tmp~0;havoc eval_~tmp~0; 24064#L224 [2019-12-07 12:17:04,414 INFO L796 eck$LassoCheckResult]: Loop: 24064#L224 assume !false; 25181#L201 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 25180#L178 assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~2 := 1; 25178#L190 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 25174#L191 eval_#t~ret1 := exists_runnable_thread_#res;eval_~tmp~0 := eval_#t~ret1;havoc eval_#t~ret1; 25165#L205 assume 0 != eval_~tmp~0; 25164#L205-1 assume 0 == ~m_st~0;havoc eval_~tmp_ndt_1~0;eval_~tmp_ndt_1~0 := eval_#t~nondet2;havoc eval_#t~nondet2; 23333#L213 assume !(0 != eval_~tmp_ndt_1~0); 23335#L210 assume 0 == ~t1_st~0;havoc eval_~tmp_ndt_2~0;eval_~tmp_ndt_2~0 := eval_#t~nondet3;havoc eval_#t~nondet3; 25163#L227 assume !(0 != eval_~tmp_ndt_2~0); 24064#L224 [2019-12-07 12:17:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1339261757, now seen corresponding path program 1 times [2019-12-07 12:17:04,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:04,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123018410] [2019-12-07 12:17:04,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,421 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1674981463, now seen corresponding path program 1 times [2019-12-07 12:17:04,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:04,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347784942] [2019-12-07 12:17:04,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:04,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1759978137, now seen corresponding path program 1 times [2019-12-07 12:17:04,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:04,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643366143] [2019-12-07 12:17:04,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:04,433 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:04,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:17:04 BoogieIcfgContainer [2019-12-07 12:17:04,606 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:17:04,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:17:04,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:17:04,607 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:17:04,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:00" (3/4) ... [2019-12-07 12:17:04,609 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 12:17:04,642 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_64f2b4b2-42fe-4388-b6db-f9055b1bc8a4/bin/uautomizer/witness.graphml [2019-12-07 12:17:04,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:17:04,643 INFO L168 Benchmark]: Toolchain (without parser) took 4339.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.4 MB in the beginning and 839.3 MB in the end (delta: 100.1 MB). Peak memory consumption was 246.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,643 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:17:04,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,644 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:17:04,644 INFO L168 Benchmark]: RCFGBuilder took 324.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,644 INFO L168 Benchmark]: BuchiAutomizer took 3699.56 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.0 GB in the beginning and 847.2 MB in the end (delta: 179.3 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,645 INFO L168 Benchmark]: Witness Printer took 35.16 ms. Allocated memory is still 1.2 GB. Free memory was 847.2 MB in the beginning and 839.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:04,646 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 324.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3699.56 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.0 GB in the beginning and 847.2 MB in the end (delta: 179.3 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. * Witness Printer took 35.16 ms. Allocated memory is still 1.2 GB. Free memory was 847.2 MB in the beginning and 839.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (10 trivial, 2 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * M_E + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * E_M + 1 and consists of 3 locations. 10 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 2179 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 11 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 898 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 3148 states and ocurred in iteration 9. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 6/6 HoareTripleCheckerStatistics: 2495 SDtfs, 2473 SDslu, 2679 SDs, 0 SdLazy, 269 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT2 SILN1 SILU0 SILI4 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital94 mio100 ax100 hnf100 lsp11 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf86 smp100 dnf189 smp57 tf109 neg96 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 200]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, token=0, __retres1=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66e809ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@306ac46b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47555d9a=0, kernel_st=1, __retres1=0, tmp___0=0, t1_pc=0, __retres1=1, T1_E=2, \result=0, E_1=2, tmp_ndt_1=0, M_E=2, tmp_ndt_2=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@504f54bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e2b4e2=0, m_i=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f0fa248=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577d1597=0, t1_st=0, local=0, m_st=0, E_M=2, tmp___0=0, tmp=0, __retres1=0, t1_i=1, m_pc=0, \result=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 200]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] int m_pc = 0; [L15] int t1_pc = 0; [L16] int m_st ; [L17] int t1_st ; [L18] int m_i ; [L19] int t1_i ; [L20] int M_E = 2; [L21] int T1_E = 2; [L22] int E_M = 2; [L23] int E_1 = 2; [L27] int token ; [L29] int local ; [L463] int __retres1 ; [L378] m_i = 1 [L379] t1_i = 1 [L404] int kernel_st ; [L405] int tmp ; [L406] int tmp___0 ; [L410] kernel_st = 0 [L160] COND TRUE m_i == 1 [L161] m_st = 0 [L165] COND TRUE t1_i == 1 [L166] t1_st = 0 [L249] COND FALSE !(M_E == 0) [L254] COND FALSE !(T1_E == 0) [L259] COND FALSE !(E_M == 0) [L264] COND FALSE !(E_1 == 0) [L302] int tmp ; [L303] int tmp___0 ; [L111] int __retres1 ; [L114] COND FALSE !(m_pc == 1) [L124] __retres1 = 0 [L126] return (__retres1); [L307] tmp = is_master_triggered() [L309] COND FALSE !(\read(tmp)) [L130] int __retres1 ; [L133] COND FALSE !(t1_pc == 1) [L143] __retres1 = 0 [L145] return (__retres1); [L315] tmp___0 = is_transmit1_triggered() [L317] COND FALSE !(\read(tmp___0)) [L277] COND FALSE !(M_E == 1) [L282] COND FALSE !(T1_E == 1) [L287] COND FALSE !(E_M == 1) [L292] COND FALSE !(E_1 == 1) [L418] COND TRUE 1 [L421] kernel_st = 1 [L196] int tmp ; Loop: [L200] COND TRUE 1 [L175] int __retres1 ; [L178] COND TRUE m_st == 0 [L179] __retres1 = 1 [L191] return (__retres1); [L203] tmp = exists_runnable_thread() [L205] COND TRUE \read(tmp) [L210] COND TRUE m_st == 0 [L211] int tmp_ndt_1; [L212] tmp_ndt_1 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp_ndt_1)) [L224] COND TRUE t1_st == 0 [L225] int tmp_ndt_2; [L226] tmp_ndt_2 = __VERIFIER_nondet_int() [L227] COND FALSE !(\read(tmp_ndt_2)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...