./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 a09fdb769f8192e1aae889aa3c16faf62d88450d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-30 00:38:02,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:38:02,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:38:02,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:38:02,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:38:02,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:38:02,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:38:02,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:38:02,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:38:02,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:38:02,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:38:02,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:38:02,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:38:02,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:38:02,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:38:02,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:38:02,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:38:02,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:38:02,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:38:02,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:38:02,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:38:02,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:38:02,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:38:02,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:38:02,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:38:02,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:38:02,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:38:02,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:38:02,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:38:02,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:38:02,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:38:02,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:38:02,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:38:02,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:38:02,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:38:02,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:38:02,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:38:02,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:38:02,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:38:02,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:38:02,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:38:02,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:38:02,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:38:02,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:38:02,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:38:02,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:38:02,915 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:38:02,915 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:38:02,916 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:38:02,916 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:38:02,916 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:38:02,916 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:38:02,917 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:38:02,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:38:02,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:38:02,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:38:02,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:38:02,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:38:02,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:38:02,920 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:38:02,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:38:02,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:38:02,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:38:02,923 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:38:02,924 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:38:02,924 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a09fdb769f8192e1aae889aa3c16faf62d88450d [2020-11-30 00:38:03,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:38:03,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:38:03,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:38:03,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:38:03,233 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:38:03,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-11-30 00:38:03,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/data/ddeaba1f6/9cc4e1da38f9474bb39b1c1d2ca0b02b/FLAG8521f681c [2020-11-30 00:38:03,743 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:38:03,744 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-11-30 00:38:03,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/data/ddeaba1f6/9cc4e1da38f9474bb39b1c1d2ca0b02b/FLAG8521f681c [2020-11-30 00:38:04,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/data/ddeaba1f6/9cc4e1da38f9474bb39b1c1d2ca0b02b [2020-11-30 00:38:04,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:38:04,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:38:04,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:38:04,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:38:04,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:38:04,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee50ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04, skipping insertion in model container [2020-11-30 00:38:04,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:38:04,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:38:04,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:38:04,401 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:38:04,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:38:04,454 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:38:04,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04 WrapperNode [2020-11-30 00:38:04,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:38:04,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:38:04,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:38:04,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:38:04,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:38:04,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:38:04,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:38:04,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:38:04,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... [2020-11-30 00:38:04,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:38:04,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:38:04,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:38:04,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:38:04,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:38:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:38:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:38:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:38:05,121 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:38:05,122 INFO L298 CfgBuilder]: Removed 66 assume(true) statements. [2020-11-30 00:38:05,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:38:05 BoogieIcfgContainer [2020-11-30 00:38:05,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:38:05,125 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:38:05,125 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:38:05,127 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:38:05,128 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:38:05,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:38:04" (1/3) ... [2020-11-30 00:38:05,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f550433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:38:05, skipping insertion in model container [2020-11-30 00:38:05,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:38:05,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:38:04" (2/3) ... [2020-11-30 00:38:05,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f550433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:38:05, skipping insertion in model container [2020-11-30 00:38:05,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:38:05,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:38:05" (3/3) ... [2020-11-30 00:38:05,131 INFO L373 chiAutomizerObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2020-11-30 00:38:05,172 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:38:05,172 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:38:05,172 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:38:05,173 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:38:05,173 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:38:05,173 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:38:05,173 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:38:05,173 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:38:05,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-30 00:38:05,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-11-30 00:38:05,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:05,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:05,218 INFO L852 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] [2020-11-30 00:38:05,218 INFO L853 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] [2020-11-30 00:38:05,218 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:38:05,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-30 00:38:05,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-11-30 00:38:05,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:05,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:05,227 INFO L852 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] [2020-11-30 00:38:05,227 INFO L853 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] [2020-11-30 00:38:05,235 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 14#L-1true havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 47#L454true havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 87#L214true assume !(1 == ~q_req_up~0); 85#L214-1true assume !(1 == ~p_dw_i~0);~p_dw_st~0 := 2; 97#L229-1true assume !(1 == ~c_dr_i~0);~c_dr_st~0 := 2; 11#L234-1true assume !(0 == ~q_read_ev~0); 42#L267-1true assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 54#L272-1true havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 96#L57true assume 1 == ~p_dw_pc~0; 3#L58true assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 98#L68true is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 5#L69true activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 17#L307true assume !(0 != activate_threads_~tmp~1); 23#L307-2true havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 20#L76true assume !(1 == ~c_dr_pc~0); 16#L76-2true is_do_read_c_triggered_~__retres1~1 := 0; 21#L87true is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 49#L88true activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 50#L315true assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 37#L315-2true assume !(1 == ~q_read_ev~0); 7#L285-1true assume !(1 == ~q_write_ev~0); 76#L411-1true [2020-11-30 00:38:05,236 INFO L796 eck$LassoCheckResult]: Loop: 76#L411-1true assume !false; 92#L412true start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 55#L356true assume false; 84#L372true start_simulation_~kernel_st~0 := 2; 61#L214-2true assume !(1 == ~q_req_up~0); 59#L214-3true start_simulation_~kernel_st~0 := 3; 12#L267-2true assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 9#L267-4true assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 72#L272-3true havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 88#L57-3true assume 1 == ~p_dw_pc~0; 33#L58-1true assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 95#L68-1true is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 35#L69-1true activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 32#L307-3true assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 6#L307-5true havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 83#L76-3true assume !(1 == ~c_dr_pc~0); 81#L76-5true is_do_read_c_triggered_~__retres1~1 := 0; 18#L87-1true is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 46#L88-1true activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 39#L315-3true assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 41#L315-5true assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 4#L285-3true assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 64#L290-3true havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 89#L247-1true assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 26#L259-1true exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 51#L260-1true stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 80#L386true assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 66#L393true stop_simulation_#res := stop_simulation_~__retres2~0; 13#L394true start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 40#L428true assume !(0 != start_simulation_~tmp~4); 76#L411-1true [2020-11-30 00:38:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1146955365, now seen corresponding path program 1 times [2020-11-30 00:38:05,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890873259] [2020-11-30 00:38:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890873259] [2020-11-30 00:38:05,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:05,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837909039] [2020-11-30 00:38:05,468 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:05,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2131013586, now seen corresponding path program 1 times [2020-11-30 00:38:05,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029294195] [2020-11-30 00:38:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029294195] [2020-11-30 00:38:05,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:38:05,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524125689] [2020-11-30 00:38:05,500 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:05,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:05,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:05,521 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-11-30 00:38:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:05,555 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-11-30 00:38:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:05,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 135 transitions. [2020-11-30 00:38:05,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-30 00:38:05,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 128 transitions. [2020-11-30 00:38:05,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-30 00:38:05,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-30 00:38:05,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 128 transitions. [2020-11-30 00:38:05,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:05,570 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-30 00:38:05,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 128 transitions. [2020-11-30 00:38:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-30 00:38:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-30 00:38:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 128 transitions. [2020-11-30 00:38:05,600 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-30 00:38:05,600 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-30 00:38:05,600 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:38:05,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 128 transitions. [2020-11-30 00:38:05,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-30 00:38:05,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:05,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:05,604 INFO L852 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] [2020-11-30 00:38:05,604 INFO L853 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] [2020-11-30 00:38:05,605 INFO L794 eck$LassoCheckResult]: Stem: 258#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 220#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 221#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 262#L214 assume !(1 == ~q_req_up~0); 223#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 283#L229-1 assume !(1 == ~c_dr_i~0);~c_dr_st~0 := 2; 218#L234-1 assume !(0 == ~q_read_ev~0); 219#L267-1 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 257#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 267#L57 assume 1 == ~p_dw_pc~0; 200#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 201#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 205#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 206#L307 assume !(0 != activate_threads_~tmp~1); 226#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 229#L76 assume !(1 == ~c_dr_pc~0); 224#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 225#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 231#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 263#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 253#L315-2 assume !(1 == ~q_read_ev~0); 207#L285-1 assume !(1 == ~q_write_ev~0); 208#L411-1 [2020-11-30 00:38:05,605 INFO L796 eck$LassoCheckResult]: Loop: 208#L411-1 assume !false; 280#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 266#L356 assume !false; 209#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 210#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 238#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 239#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 240#L336 assume !(0 != eval_~tmp___1~0); 242#L372 start_simulation_~kernel_st~0 := 2; 272#L214-2 assume !(1 == ~q_req_up~0); 270#L214-3 start_simulation_~kernel_st~0 := 3; 215#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 211#L267-4 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 212#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 279#L57-3 assume 1 == ~p_dw_pc~0; 244#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 245#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 252#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 243#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 203#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 204#L76-3 assume 1 == ~c_dr_pc~0; 260#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 227#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 228#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 255#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 256#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 198#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 199#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 274#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 234#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 235#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 264#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 275#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 216#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 217#L428 assume !(0 != start_simulation_~tmp~4); 208#L411-1 [2020-11-30 00:38:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1153867225, now seen corresponding path program 1 times [2020-11-30 00:38:05,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195776772] [2020-11-30 00:38:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195776772] [2020-11-30 00:38:05,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:05,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797914714] [2020-11-30 00:38:05,711 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 1 times [2020-11-30 00:38:05,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693677790] [2020-11-30 00:38:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693677790] [2020-11-30 00:38:05,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:05,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103005723] [2020-11-30 00:38:05,766 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:05,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:05,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:05,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:05,767 INFO L87 Difference]: Start difference. First operand 86 states and 128 transitions. cyclomatic complexity: 43 Second operand 3 states. [2020-11-30 00:38:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:05,782 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2020-11-30 00:38:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:05,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 127 transitions. [2020-11-30 00:38:05,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-30 00:38:05,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 86 states and 127 transitions. [2020-11-30 00:38:05,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-30 00:38:05,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-30 00:38:05,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 127 transitions. [2020-11-30 00:38:05,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:05,803 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-30 00:38:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 127 transitions. [2020-11-30 00:38:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-30 00:38:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-30 00:38:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2020-11-30 00:38:05,812 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-30 00:38:05,812 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-30 00:38:05,813 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:38:05,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 127 transitions. [2020-11-30 00:38:05,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-30 00:38:05,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:05,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:05,818 INFO L852 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] [2020-11-30 00:38:05,819 INFO L853 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] [2020-11-30 00:38:05,820 INFO L794 eck$LassoCheckResult]: Stem: 439#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 401#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 402#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 443#L214 assume !(1 == ~q_req_up~0); 404#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 464#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 396#L234-1 assume !(0 == ~q_read_ev~0); 397#L267-1 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 438#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 447#L57 assume 1 == ~p_dw_pc~0; 379#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 380#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 384#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 385#L307 assume !(0 != activate_threads_~tmp~1); 407#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 410#L76 assume !(1 == ~c_dr_pc~0); 405#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 406#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 412#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 444#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 434#L315-2 assume !(1 == ~q_read_ev~0); 388#L285-1 assume !(1 == ~q_write_ev~0); 389#L411-1 [2020-11-30 00:38:05,820 INFO L796 eck$LassoCheckResult]: Loop: 389#L411-1 assume !false; 461#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 448#L356 assume !false; 390#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 391#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 419#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 420#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 421#L336 assume !(0 != eval_~tmp___1~0); 423#L372 start_simulation_~kernel_st~0 := 2; 453#L214-2 assume !(1 == ~q_req_up~0); 451#L214-3 start_simulation_~kernel_st~0 := 3; 398#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 392#L267-4 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 393#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 460#L57-3 assume 1 == ~p_dw_pc~0; 425#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 426#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 433#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 424#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 386#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 387#L76-3 assume 1 == ~c_dr_pc~0; 441#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 408#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 409#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 436#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 437#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 382#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 383#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 455#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 415#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 416#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 445#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 456#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 399#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 400#L428 assume !(0 != start_simulation_~tmp~4); 389#L411-1 [2020-11-30 00:38:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash 434480677, now seen corresponding path program 1 times [2020-11-30 00:38:05,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89448404] [2020-11-30 00:38:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89448404] [2020-11-30 00:38:05,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:38:05,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252916064] [2020-11-30 00:38:05,918 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:05,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 2 times [2020-11-30 00:38:05,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:05,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340444292] [2020-11-30 00:38:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:05,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340444292] [2020-11-30 00:38:05,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:05,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:05,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647129623] [2020-11-30 00:38:05,975 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:05,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:05,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:38:05,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:38:05,976 INFO L87 Difference]: Start difference. First operand 86 states and 127 transitions. cyclomatic complexity: 42 Second operand 4 states. [2020-11-30 00:38:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:06,167 INFO L93 Difference]: Finished difference Result 177 states and 256 transitions. [2020-11-30 00:38:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:38:06,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 256 transitions. [2020-11-30 00:38:06,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-30 00:38:06,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 256 transitions. [2020-11-30 00:38:06,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-30 00:38:06,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-30 00:38:06,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 256 transitions. [2020-11-30 00:38:06,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:06,178 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-30 00:38:06,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 256 transitions. [2020-11-30 00:38:06,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-11-30 00:38:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-11-30 00:38:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2020-11-30 00:38:06,194 INFO L714 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-30 00:38:06,194 INFO L594 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-30 00:38:06,194 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:38:06,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 256 transitions. [2020-11-30 00:38:06,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-30 00:38:06,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:06,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:06,198 INFO L852 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] [2020-11-30 00:38:06,198 INFO L853 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] [2020-11-30 00:38:06,198 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 677#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 678#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 719#L214 assume !(1 == ~q_req_up~0); 755#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 814#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 813#L234-1 assume !(0 == ~q_read_ev~0); 812#L267-1 assume !(0 == ~q_write_ev~0); 811#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 810#L57 assume 1 == ~p_dw_pc~0; 809#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 757#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 659#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 660#L307 assume !(0 != activate_threads_~tmp~1); 683#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 686#L76 assume !(1 == ~c_dr_pc~0); 681#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 682#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 688#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 720#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 721#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 663#L285-1 assume !(1 == ~q_write_ev~0); 664#L411-1 [2020-11-30 00:38:06,199 INFO L796 eck$LassoCheckResult]: Loop: 664#L411-1 assume !false; 756#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 725#L356 assume !false; 665#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 666#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 695#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 696#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 697#L336 assume !(0 != eval_~tmp___1~0); 699#L372 start_simulation_~kernel_st~0 := 2; 764#L214-2 assume !(1 == ~q_req_up~0); 763#L214-3 start_simulation_~kernel_st~0 := 3; 762#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 667#L267-4 assume !(0 == ~q_write_ev~0); 668#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 742#L57-3 assume 1 == ~p_dw_pc~0; 701#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 702#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 709#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 700#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 661#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 662#L76-3 assume 1 == ~c_dr_pc~0; 717#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 684#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 685#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 712#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 713#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 654#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 655#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 736#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 691#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 692#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 722#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 737#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 673#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 674#L428 assume !(0 != start_simulation_~tmp~4); 664#L411-1 [2020-11-30 00:38:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash -845383063, now seen corresponding path program 1 times [2020-11-30 00:38:06,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826500855] [2020-11-30 00:38:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826500855] [2020-11-30 00:38:06,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:38:06,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624562673] [2020-11-30 00:38:06,259 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:06,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,260 INFO L82 PathProgramCache]: Analyzing trace with hash 164769050, now seen corresponding path program 1 times [2020-11-30 00:38:06,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308399185] [2020-11-30 00:38:06,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308399185] [2020-11-30 00:38:06,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:06,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928089957] [2020-11-30 00:38:06,329 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:06,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:06,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:06,330 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. cyclomatic complexity: 81 Second operand 5 states. [2020-11-30 00:38:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:06,468 INFO L93 Difference]: Finished difference Result 582 states and 820 transitions. [2020-11-30 00:38:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:38:06,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 820 transitions. [2020-11-30 00:38:06,474 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 550 [2020-11-30 00:38:06,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 582 states and 820 transitions. [2020-11-30 00:38:06,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 582 [2020-11-30 00:38:06,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 582 [2020-11-30 00:38:06,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 582 states and 820 transitions. [2020-11-30 00:38:06,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:06,485 INFO L691 BuchiCegarLoop]: Abstraction has 582 states and 820 transitions. [2020-11-30 00:38:06,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states and 820 transitions. [2020-11-30 00:38:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 554. [2020-11-30 00:38:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-11-30 00:38:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 788 transitions. [2020-11-30 00:38:06,539 INFO L714 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-11-30 00:38:06,539 INFO L594 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-11-30 00:38:06,540 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:38:06,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 554 states and 788 transitions. [2020-11-30 00:38:06,545 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 526 [2020-11-30 00:38:06,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:06,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:06,547 INFO L852 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] [2020-11-30 00:38:06,547 INFO L853 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] [2020-11-30 00:38:06,547 INFO L794 eck$LassoCheckResult]: Stem: 1488#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 1447#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 1448#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 1492#L214 assume !(1 == ~q_req_up~0); 1525#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 1526#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 1445#L234-1 assume !(0 == ~q_read_ev~0); 1446#L267-1 assume !(0 == ~q_write_ev~0); 1487#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 1501#L57 assume !(1 == ~p_dw_pc~0); 1528#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 1529#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 1432#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 1433#L307 assume !(0 != activate_threads_~tmp~1); 1451#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 1454#L76 assume !(1 == ~c_dr_pc~0); 1449#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 1450#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 1456#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 1493#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 1479#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 1434#L285-1 assume !(1 == ~q_write_ev~0); 1435#L411-1 [2020-11-30 00:38:06,547 INFO L796 eck$LassoCheckResult]: Loop: 1435#L411-1 assume !false; 1518#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 1499#L356 assume !false; 1500#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1964#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 1963#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1495#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 1465#L336 assume !(0 != eval_~tmp___1~0); 1467#L372 start_simulation_~kernel_st~0 := 2; 1506#L214-2 assume !(1 == ~q_req_up~0); 1503#L214-3 start_simulation_~kernel_st~0 := 3; 1442#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 1436#L267-4 assume !(0 == ~q_write_ev~0); 1437#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 1513#L57-3 assume !(1 == ~p_dw_pc~0); 1507#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 1508#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 1478#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 1468#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 1430#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 1431#L76-3 assume 1 == ~c_dr_pc~0; 1490#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 1452#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 1453#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 1483#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 1484#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 1428#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 1429#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1509#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 1459#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1460#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 1494#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 1510#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 1443#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 1444#L428 assume !(0 != start_simulation_~tmp~4); 1435#L411-1 [2020-11-30 00:38:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,548 INFO L82 PathProgramCache]: Analyzing trace with hash -2124707798, now seen corresponding path program 1 times [2020-11-30 00:38:06,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504327692] [2020-11-30 00:38:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504327692] [2020-11-30 00:38:06,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:06,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118339873] [2020-11-30 00:38:06,610 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,611 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 1 times [2020-11-30 00:38:06,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785190230] [2020-11-30 00:38:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785190230] [2020-11-30 00:38:06,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:06,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611085055] [2020-11-30 00:38:06,658 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:06,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:06,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:06,659 INFO L87 Difference]: Start difference. First operand 554 states and 788 transitions. cyclomatic complexity: 238 Second operand 5 states. [2020-11-30 00:38:06,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:06,722 INFO L93 Difference]: Finished difference Result 1469 states and 2085 transitions. [2020-11-30 00:38:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:38:06,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1469 states and 2085 transitions. [2020-11-30 00:38:06,736 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1424 [2020-11-30 00:38:06,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1469 states to 1469 states and 2085 transitions. [2020-11-30 00:38:06,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1469 [2020-11-30 00:38:06,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1469 [2020-11-30 00:38:06,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1469 states and 2085 transitions. [2020-11-30 00:38:06,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:06,755 INFO L691 BuchiCegarLoop]: Abstraction has 1469 states and 2085 transitions. [2020-11-30 00:38:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states and 2085 transitions. [2020-11-30 00:38:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 587. [2020-11-30 00:38:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-11-30 00:38:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 821 transitions. [2020-11-30 00:38:06,790 INFO L714 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-11-30 00:38:06,790 INFO L594 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-11-30 00:38:06,790 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:38:06,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 821 transitions. [2020-11-30 00:38:06,794 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 556 [2020-11-30 00:38:06,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:06,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:06,797 INFO L852 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] [2020-11-30 00:38:06,797 INFO L853 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] [2020-11-30 00:38:06,799 INFO L794 eck$LassoCheckResult]: Stem: 3524#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 3485#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 3486#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 3533#L214 assume !(1 == ~q_req_up~0); 3567#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 3568#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 3483#L234-1 assume !(0 == ~q_read_ev~0); 3484#L267-1 assume !(0 == ~q_write_ev~0); 3523#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 3543#L57 assume !(1 == ~p_dw_pc~0); 3570#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 3571#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 3470#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 3471#L307 assume !(0 != activate_threads_~tmp~1); 3489#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 3492#L76 assume !(1 == ~c_dr_pc~0); 3487#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 3488#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 3494#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 3537#L315 assume !(0 != activate_threads_~tmp___0~1); 3517#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 3472#L285-1 assume !(1 == ~q_write_ev~0); 3473#L411-1 [2020-11-30 00:38:06,799 INFO L796 eck$LassoCheckResult]: Loop: 3473#L411-1 assume !false; 3560#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 3542#L356 assume !false; 3474#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3475#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 3501#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3502#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 3503#L336 assume !(0 != eval_~tmp___1~0); 3505#L372 start_simulation_~kernel_st~0 := 2; 3549#L214-2 assume !(1 == ~q_req_up~0); 3546#L214-3 start_simulation_~kernel_st~0 := 3; 3480#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 3476#L267-4 assume !(0 == ~q_write_ev~0); 3477#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 3557#L57-3 assume !(1 == ~p_dw_pc~0); 3569#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 4052#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 4051#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 4050#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 4049#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 3564#L76-3 assume 1 == ~c_dr_pc~0; 3565#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 4047#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 4045#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 4043#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 3522#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 3466#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 3467#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3551#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 3497#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3498#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 3538#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 3552#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 3481#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 3482#L428 assume !(0 != start_simulation_~tmp~4); 3473#L411-1 [2020-11-30 00:38:06,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705876, now seen corresponding path program 1 times [2020-11-30 00:38:06,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736484843] [2020-11-30 00:38:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736484843] [2020-11-30 00:38:06,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:06,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043847694] [2020-11-30 00:38:06,865 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,866 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 2 times [2020-11-30 00:38:06,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:06,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338512977] [2020-11-30 00:38:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:06,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:06,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338512977] [2020-11-30 00:38:06,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:06,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:06,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85656363] [2020-11-30 00:38:06,919 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:06,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:06,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:06,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:06,920 INFO L87 Difference]: Start difference. First operand 587 states and 821 transitions. cyclomatic complexity: 238 Second operand 3 states. [2020-11-30 00:38:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:06,957 INFO L93 Difference]: Finished difference Result 821 states and 1132 transitions. [2020-11-30 00:38:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:06,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 821 states and 1132 transitions. [2020-11-30 00:38:06,966 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 791 [2020-11-30 00:38:06,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 821 states to 821 states and 1132 transitions. [2020-11-30 00:38:06,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 821 [2020-11-30 00:38:06,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 821 [2020-11-30 00:38:06,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 821 states and 1132 transitions. [2020-11-30 00:38:06,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:06,976 INFO L691 BuchiCegarLoop]: Abstraction has 821 states and 1132 transitions. [2020-11-30 00:38:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states and 1132 transitions. [2020-11-30 00:38:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 546. [2020-11-30 00:38:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-11-30 00:38:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 756 transitions. [2020-11-30 00:38:06,989 INFO L714 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-11-30 00:38:06,989 INFO L594 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-11-30 00:38:06,989 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 00:38:06,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 546 states and 756 transitions. [2020-11-30 00:38:06,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 518 [2020-11-30 00:38:06,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:06,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:06,996 INFO L852 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] [2020-11-30 00:38:06,997 INFO L853 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] [2020-11-30 00:38:06,997 INFO L794 eck$LassoCheckResult]: Stem: 4939#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 4903#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 4904#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 4946#L214 assume !(1 == ~q_req_up~0); 4978#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 4979#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 4901#L234-1 assume !(0 == ~q_read_ev~0); 4902#L267-1 assume !(0 == ~q_write_ev~0); 4938#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 4953#L57 assume !(1 == ~p_dw_pc~0); 4982#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 4983#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 4887#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 4888#L307 assume !(0 != activate_threads_~tmp~1); 4907#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 4910#L76 assume !(1 == ~c_dr_pc~0); 4905#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 4906#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 4986#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 4948#L315 assume !(0 != activate_threads_~tmp___0~1); 4933#L315-2 assume !(1 == ~q_read_ev~0); 4889#L285-1 assume !(1 == ~q_write_ev~0); 4890#L411-1 [2020-11-30 00:38:06,998 INFO L796 eck$LassoCheckResult]: Loop: 4890#L411-1 assume !false; 4981#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 4952#L356 assume !false; 4893#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 4894#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 4919#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 4920#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 4921#L336 assume !(0 != eval_~tmp___1~0); 4923#L372 start_simulation_~kernel_st~0 := 2; 5426#L214-2 assume !(1 == ~q_req_up~0); 5424#L214-3 start_simulation_~kernel_st~0 := 3; 5423#L267-2 assume !(0 == ~q_read_ev~0); 4891#L267-4 assume !(0 == ~q_write_ev~0); 4892#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 4969#L57-3 assume !(1 == ~p_dw_pc~0); 4958#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 4959#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 5414#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 5413#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 5412#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 5411#L76-3 assume !(1 == ~c_dr_pc~0); 5409#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 5407#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 5405#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 5404#L315-3 assume !(0 != activate_threads_~tmp___0~1); 5402#L315-5 assume !(1 == ~q_read_ev~0); 5401#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 5400#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 5398#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 5397#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 5396#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 5395#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 5394#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 5393#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 5391#L428 assume !(0 != start_simulation_~tmp~4); 4890#L411-1 [2020-11-30 00:38:06,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:06,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 1 times [2020-11-30 00:38:06,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988679507] [2020-11-30 00:38:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1705119526, now seen corresponding path program 1 times [2020-11-30 00:38:07,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837702131] [2020-11-30 00:38:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837702131] [2020-11-30 00:38:07,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:07,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303005133] [2020-11-30 00:38:07,128 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:07,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:07,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:07,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:07,129 INFO L87 Difference]: Start difference. First operand 546 states and 756 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-11-30 00:38:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:07,235 INFO L93 Difference]: Finished difference Result 850 states and 1157 transitions. [2020-11-30 00:38:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:38:07,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 850 states and 1157 transitions. [2020-11-30 00:38:07,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 820 [2020-11-30 00:38:07,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 850 states to 850 states and 1157 transitions. [2020-11-30 00:38:07,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 850 [2020-11-30 00:38:07,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 850 [2020-11-30 00:38:07,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 850 states and 1157 transitions. [2020-11-30 00:38:07,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:07,256 INFO L691 BuchiCegarLoop]: Abstraction has 850 states and 1157 transitions. [2020-11-30 00:38:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states and 1157 transitions. [2020-11-30 00:38:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 573. [2020-11-30 00:38:07,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-11-30 00:38:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 783 transitions. [2020-11-30 00:38:07,272 INFO L714 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-11-30 00:38:07,272 INFO L594 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-11-30 00:38:07,272 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-30 00:38:07,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 573 states and 783 transitions. [2020-11-30 00:38:07,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 545 [2020-11-30 00:38:07,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:07,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:07,279 INFO L852 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] [2020-11-30 00:38:07,280 INFO L853 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] [2020-11-30 00:38:07,280 INFO L794 eck$LassoCheckResult]: Stem: 6349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 6314#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 6315#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 6356#L214 assume !(1 == ~q_req_up~0); 6397#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 6398#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 6312#L234-1 assume !(0 == ~q_read_ev~0); 6313#L267-1 assume !(0 == ~q_write_ev~0); 6348#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 6366#L57 assume !(1 == ~p_dw_pc~0); 6401#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 6402#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 6299#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 6300#L307 assume !(0 != activate_threads_~tmp~1); 6318#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 6321#L76 assume !(1 == ~c_dr_pc~0); 6316#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 6317#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 6403#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 6358#L315 assume !(0 != activate_threads_~tmp___0~1); 6344#L315-2 assume !(1 == ~q_read_ev~0); 6301#L285-1 assume !(1 == ~q_write_ev~0); 6302#L411-1 [2020-11-30 00:38:07,280 INFO L796 eck$LassoCheckResult]: Loop: 6302#L411-1 assume !false; 6387#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 6364#L356 assume !false; 6365#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 6749#L247 assume !(0 == ~p_dw_st~0); 6750#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 6748#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 6731#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 6732#L336 assume !(0 != eval_~tmp___1~0); 6744#L372 start_simulation_~kernel_st~0 := 2; 6866#L214-2 assume !(1 == ~q_req_up~0); 6865#L214-3 start_simulation_~kernel_st~0 := 3; 6864#L267-2 assume !(0 == ~q_read_ev~0); 6863#L267-4 assume !(0 == ~q_write_ev~0); 6862#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 6861#L57-3 assume !(1 == ~p_dw_pc~0); 6860#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 6859#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 6858#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 6857#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 6856#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 6394#L76-3 assume !(1 == ~c_dr_pc~0); 6393#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 6319#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 6320#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 6346#L315-3 assume !(0 != activate_threads_~tmp___0~1); 6347#L315-5 assume !(1 == ~q_read_ev~0); 6295#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 6296#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 6374#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 6845#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 6844#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 6843#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 6842#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 6310#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 6311#L428 assume !(0 != start_simulation_~tmp~4); 6302#L411-1 [2020-11-30 00:38:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 2 times [2020-11-30 00:38:07,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033999504] [2020-11-30 00:38:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:07,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,318 INFO L82 PathProgramCache]: Analyzing trace with hash -499741119, now seen corresponding path program 1 times [2020-11-30 00:38:07,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523114140] [2020-11-30 00:38:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523114140] [2020-11-30 00:38:07,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:38:07,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807122618] [2020-11-30 00:38:07,412 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:07,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:07,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:07,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:07,413 INFO L87 Difference]: Start difference. First operand 573 states and 783 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-11-30 00:38:07,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:07,492 INFO L93 Difference]: Finished difference Result 995 states and 1367 transitions. [2020-11-30 00:38:07,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:38:07,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 995 states and 1367 transitions. [2020-11-30 00:38:07,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 967 [2020-11-30 00:38:07,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 995 states to 995 states and 1367 transitions. [2020-11-30 00:38:07,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 995 [2020-11-30 00:38:07,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 995 [2020-11-30 00:38:07,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 995 states and 1367 transitions. [2020-11-30 00:38:07,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:07,512 INFO L691 BuchiCegarLoop]: Abstraction has 995 states and 1367 transitions. [2020-11-30 00:38:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states and 1367 transitions. [2020-11-30 00:38:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 579. [2020-11-30 00:38:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-11-30 00:38:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 781 transitions. [2020-11-30 00:38:07,528 INFO L714 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-11-30 00:38:07,528 INFO L594 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-11-30 00:38:07,528 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-30 00:38:07,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 579 states and 781 transitions. [2020-11-30 00:38:07,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 551 [2020-11-30 00:38:07,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:07,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:07,533 INFO L852 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] [2020-11-30 00:38:07,533 INFO L853 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] [2020-11-30 00:38:07,533 INFO L794 eck$LassoCheckResult]: Stem: 7933#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 7895#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 7896#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 7940#L214 assume !(1 == ~q_req_up~0); 7974#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 7975#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 7890#L234-1 assume !(0 == ~q_read_ev~0); 7891#L267-1 assume !(0 == ~q_write_ev~0); 7932#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 7946#L57 assume !(1 == ~p_dw_pc~0); 7980#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 7981#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 7878#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 7879#L307 assume !(0 != activate_threads_~tmp~1); 7899#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 7902#L76 assume !(1 == ~c_dr_pc~0); 7897#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 7898#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 7941#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 7942#L315 assume !(0 != activate_threads_~tmp___0~1); 7925#L315-2 assume !(1 == ~q_read_ev~0); 7882#L285-1 assume !(1 == ~q_write_ev~0); 7883#L411-1 [2020-11-30 00:38:07,533 INFO L796 eck$LassoCheckResult]: Loop: 7883#L411-1 assume !false; 8228#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 8225#L356 assume !false; 8226#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 8219#L247 assume !(0 == ~p_dw_st~0); 8221#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 8222#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 8213#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 8214#L336 assume !(0 != eval_~tmp___1~0); 8352#L372 start_simulation_~kernel_st~0 := 2; 8201#L214-2 assume !(1 == ~q_req_up~0); 8202#L214-3 start_simulation_~kernel_st~0 := 3; 8195#L267-2 assume !(0 == ~q_read_ev~0); 8196#L267-4 assume !(0 == ~q_write_ev~0); 7961#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 7962#L57-3 assume !(1 == ~p_dw_pc~0); 8275#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 8276#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 8271#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 8272#L307-3 assume !(0 != activate_threads_~tmp~1); 8267#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 8268#L76-3 assume 1 == ~c_dr_pc~0; 8260#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 8261#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 8252#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 8253#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 8247#L315-5 assume !(1 == ~q_read_ev~0); 8248#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 8244#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 8245#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 8239#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 8240#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 8235#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 8236#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 8231#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 8232#L428 assume !(0 != start_simulation_~tmp~4); 7883#L411-1 [2020-11-30 00:38:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 3 times [2020-11-30 00:38:07,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552923293] [2020-11-30 00:38:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,549 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:07,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:07,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:07,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1718729920, now seen corresponding path program 1 times [2020-11-30 00:38:07,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289715378] [2020-11-30 00:38:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289715378] [2020-11-30 00:38:07,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:07,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942637070] [2020-11-30 00:38:07,599 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:07,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:07,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:07,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:07,600 INFO L87 Difference]: Start difference. First operand 579 states and 781 transitions. cyclomatic complexity: 204 Second operand 3 states. [2020-11-30 00:38:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:07,632 INFO L93 Difference]: Finished difference Result 670 states and 871 transitions. [2020-11-30 00:38:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:07,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 670 states and 871 transitions. [2020-11-30 00:38:07,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 633 [2020-11-30 00:38:07,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 670 states to 670 states and 871 transitions. [2020-11-30 00:38:07,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 670 [2020-11-30 00:38:07,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 670 [2020-11-30 00:38:07,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 670 states and 871 transitions. [2020-11-30 00:38:07,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:07,649 INFO L691 BuchiCegarLoop]: Abstraction has 670 states and 871 transitions. [2020-11-30 00:38:07,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states and 871 transitions. [2020-11-30 00:38:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 619. [2020-11-30 00:38:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-11-30 00:38:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 807 transitions. [2020-11-30 00:38:07,662 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-11-30 00:38:07,662 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-11-30 00:38:07,663 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-30 00:38:07,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 807 transitions. [2020-11-30 00:38:07,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-11-30 00:38:07,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:07,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:07,671 INFO L852 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] [2020-11-30 00:38:07,671 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:07,672 INFO L794 eck$LassoCheckResult]: Stem: 9186#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 9150#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 9151#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 9193#L214 assume !(1 == ~q_req_up~0); 9226#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 9227#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 9145#L234-1 assume !(0 == ~q_read_ev~0); 9146#L267-1 assume !(0 == ~q_write_ev~0); 9185#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 9200#L57 assume !(1 == ~p_dw_pc~0); 9228#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 9229#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 9133#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 9134#L307 assume !(0 != activate_threads_~tmp~1); 9154#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 9157#L76 assume !(1 == ~c_dr_pc~0); 9152#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 9153#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 9194#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 9195#L315 assume !(0 != activate_threads_~tmp___0~1); 9179#L315-2 assume !(1 == ~q_read_ev~0); 9137#L285-1 assume !(1 == ~q_write_ev~0); 9138#L411-1 assume !false; 9244#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 9243#L356 assume !false; 9242#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9241#L247 assume !(0 == ~p_dw_st~0); 9222#L251 [2020-11-30 00:38:07,678 INFO L796 eck$LassoCheckResult]: Loop: 9222#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 9223#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9746#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 9745#L336 assume 0 != eval_~tmp___1~0; 9170#L336-1 assume !(0 == ~p_dw_st~0); 9174#L341 assume !(0 == ~c_dr_st~0); 9201#L356 assume !false; 9139#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9140#L247 assume !(0 == ~p_dw_st~0); 9222#L251 [2020-11-30 00:38:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 1 times [2020-11-30 00:38:07,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769446250] [2020-11-30 00:38:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769446250] [2020-11-30 00:38:07,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:38:07,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453986409] [2020-11-30 00:38:07,710 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash 147133599, now seen corresponding path program 1 times [2020-11-30 00:38:07,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069411272] [2020-11-30 00:38:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069411272] [2020-11-30 00:38:07,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:38:07,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274729177] [2020-11-30 00:38:07,756 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:07,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:07,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:07,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:07,757 INFO L87 Difference]: Start difference. First operand 619 states and 807 transitions. cyclomatic complexity: 190 Second operand 5 states. [2020-11-30 00:38:07,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:07,858 INFO L93 Difference]: Finished difference Result 699 states and 887 transitions. [2020-11-30 00:38:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:38:07,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 699 states and 887 transitions. [2020-11-30 00:38:07,863 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 662 [2020-11-30 00:38:07,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 699 states to 699 states and 887 transitions. [2020-11-30 00:38:07,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 699 [2020-11-30 00:38:07,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 699 [2020-11-30 00:38:07,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 699 states and 887 transitions. [2020-11-30 00:38:07,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:07,870 INFO L691 BuchiCegarLoop]: Abstraction has 699 states and 887 transitions. [2020-11-30 00:38:07,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states and 887 transitions. [2020-11-30 00:38:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 619. [2020-11-30 00:38:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-11-30 00:38:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 799 transitions. [2020-11-30 00:38:07,883 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-11-30 00:38:07,883 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-11-30 00:38:07,883 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-30 00:38:07,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 799 transitions. [2020-11-30 00:38:07,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-11-30 00:38:07,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:07,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:07,889 INFO L852 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] [2020-11-30 00:38:07,889 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:07,889 INFO L794 eck$LassoCheckResult]: Stem: 10524#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 10483#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 10484#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 10531#L214 assume !(1 == ~q_req_up~0); 10572#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 10573#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 10481#L234-1 assume !(0 == ~q_read_ev~0); 10482#L267-1 assume !(0 == ~q_write_ev~0); 10523#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 10542#L57 assume !(1 == ~p_dw_pc~0); 10579#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 10580#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 10468#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 10469#L307 assume !(0 != activate_threads_~tmp~1); 10487#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 10490#L76 assume !(1 == ~c_dr_pc~0); 10485#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 10486#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 10584#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 10533#L315 assume !(0 != activate_threads_~tmp___0~1); 10515#L315-2 assume !(1 == ~q_read_ev~0); 10470#L285-1 assume !(1 == ~q_write_ev~0); 10471#L411-1 assume !false; 10605#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 10604#L356 assume !false; 10603#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 10602#L247 assume !(0 == ~p_dw_st~0); 10578#L251 [2020-11-30 00:38:07,889 INFO L796 eck$LassoCheckResult]: Loop: 10578#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 11010#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 11009#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 11008#L336 assume 0 != eval_~tmp___1~0; 11007#L336-1 assume !(0 == ~p_dw_st~0); 10598#L341 assume !(0 == ~c_dr_st~0); 10557#L356 assume !false; 11012#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 10577#L247 assume !(0 == ~p_dw_st~0); 10578#L251 [2020-11-30 00:38:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 2 times [2020-11-30 00:38:07,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275165856] [2020-11-30 00:38:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275165856] [2020-11-30 00:38:07,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:38:07,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267545577] [2020-11-30 00:38:07,925 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:07,926 INFO L82 PathProgramCache]: Analyzing trace with hash -532924771, now seen corresponding path program 1 times [2020-11-30 00:38:07,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:07,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238578931] [2020-11-30 00:38:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:07,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238578931] [2020-11-30 00:38:07,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:07,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:38:07,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608640194] [2020-11-30 00:38:07,939 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:07,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:07,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:07,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:07,940 INFO L87 Difference]: Start difference. First operand 619 states and 799 transitions. cyclomatic complexity: 182 Second operand 3 states. [2020-11-30 00:38:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:07,975 INFO L93 Difference]: Finished difference Result 855 states and 1085 transitions. [2020-11-30 00:38:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:07,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1085 transitions. [2020-11-30 00:38:08,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-30 00:38:08,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1085 transitions. [2020-11-30 00:38:08,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-11-30 00:38:08,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-11-30 00:38:08,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1085 transitions. [2020-11-30 00:38:08,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:08,011 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-30 00:38:08,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1085 transitions. [2020-11-30 00:38:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-11-30 00:38:08,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-11-30 00:38:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1085 transitions. [2020-11-30 00:38:08,026 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-30 00:38:08,026 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-30 00:38:08,026 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-30 00:38:08,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1085 transitions. [2020-11-30 00:38:08,036 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-30 00:38:08,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:08,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:08,037 INFO L852 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] [2020-11-30 00:38:08,037 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:08,037 INFO L794 eck$LassoCheckResult]: Stem: 12004#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 11965#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 11966#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 12013#L214 assume !(1 == ~q_req_up~0); 12052#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 12053#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 11959#L234-1 assume !(0 == ~q_read_ev~0); 11960#L267-1 assume !(0 == ~q_write_ev~0); 12003#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 12019#L57 assume !(1 == ~p_dw_pc~0); 12054#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 12055#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 11947#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 11948#L307 assume !(0 != activate_threads_~tmp~1); 11969#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 11972#L76 assume !(1 == ~c_dr_pc~0); 11967#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 11968#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 12014#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 12015#L315 assume !(0 != activate_threads_~tmp___0~1); 11995#L315-2 assume !(1 == ~q_read_ev~0); 11951#L285-1 assume !(1 == ~q_write_ev~0); 11952#L411-1 assume !false; 12621#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 12619#L356 assume !false; 12618#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 12616#L247 assume !(0 == ~p_dw_st~0); 12617#L251 [2020-11-30 00:38:08,038 INFO L796 eck$LassoCheckResult]: Loop: 12617#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 12612#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 12599#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 12261#L336 assume 0 != eval_~tmp___1~0; 12201#L336-1 assume !(0 == ~p_dw_st~0); 12199#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 12196#L360 assume !(0 != eval_~tmp___0~2); 12197#L356 assume !false; 12719#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 12620#L247 assume !(0 == ~p_dw_st~0); 12617#L251 [2020-11-30 00:38:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 3 times [2020-11-30 00:38:08,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059051577] [2020-11-30 00:38:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:08,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059051577] [2020-11-30 00:38:08,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:08,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:38:08,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746645253] [2020-11-30 00:38:08,064 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,064 INFO L82 PathProgramCache]: Analyzing trace with hash 605009515, now seen corresponding path program 1 times [2020-11-30 00:38:08,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395349082] [2020-11-30 00:38:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,077 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:08,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:08,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:08,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:08,151 INFO L87 Difference]: Start difference. First operand 855 states and 1085 transitions. cyclomatic complexity: 232 Second operand 3 states. [2020-11-30 00:38:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:08,337 INFO L93 Difference]: Finished difference Result 855 states and 1059 transitions. [2020-11-30 00:38:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:08,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1059 transitions. [2020-11-30 00:38:08,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-30 00:38:08,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1059 transitions. [2020-11-30 00:38:08,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-11-30 00:38:08,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-11-30 00:38:08,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1059 transitions. [2020-11-30 00:38:08,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:08,354 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-30 00:38:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1059 transitions. [2020-11-30 00:38:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-11-30 00:38:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-11-30 00:38:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1059 transitions. [2020-11-30 00:38:08,375 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-30 00:38:08,375 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-30 00:38:08,375 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-30 00:38:08,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1059 transitions. [2020-11-30 00:38:08,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-30 00:38:08,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:08,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:08,381 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:08,381 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:08,381 INFO L794 eck$LassoCheckResult]: Stem: 13716#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 13680#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 13681#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 13725#L214 assume !(1 == ~q_req_up~0); 13765#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 13766#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 13675#L234-1 assume !(0 == ~q_read_ev~0); 13676#L267-1 assume !(0 == ~q_write_ev~0); 13715#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 13730#L57 assume !(1 == ~p_dw_pc~0); 13768#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 13769#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 13663#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 13664#L307 assume !(0 != activate_threads_~tmp~1); 13684#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 13687#L76 assume !(1 == ~c_dr_pc~0); 13682#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 13683#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 13726#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 13727#L315 assume !(0 != activate_threads_~tmp___0~1); 13709#L315-2 assume !(1 == ~q_read_ev~0); 13667#L285-1 assume !(1 == ~q_write_ev~0); 13668#L411-1 assume !false; 14484#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 14481#L356 assume !false; 13669#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 13670#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 13696#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 13697#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 13698#L336 assume 0 != eval_~tmp___1~0; 13699#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 13733#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 13695#L120 assume 0 == ~p_dw_pc~0; 13691#L131-1 [2020-11-30 00:38:08,381 INFO L796 eck$LassoCheckResult]: Loop: 13691#L131-1 assume !false; 13692#L132 assume !(0 == ~q_free~0); 13729#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 14055#L131-1 assume !false; 14042#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 14039#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 13997#L360 assume 0 != eval_~tmp___0~2;~c_dr_st~0 := 1;havoc do_read_c_~a~0;havoc do_read_c_~a~0; 14016#L161 assume 0 == ~c_dr_pc~0; 13740#L13-2 assume !false; 13994#L173 assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 1;~a_t~0 := do_read_c_~a~0; 13988#L356 assume !false; 13986#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 13984#L247 assume !(0 == ~p_dw_st~0); 13981#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 13978#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 13976#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 13972#L336 assume !(0 != eval_~tmp___1~0); 13763#L372 start_simulation_~kernel_st~0 := 2; 13764#L214-2 assume 1 == ~q_req_up~0; 13775#L27-3 assume !(0 == ~q_free~0); 14307#L27-5 assume 1 == ~q_free~0;~q_read_ev~0 := 0; 14261#L32-3 ~q_ev~0 := 0;~q_req_up~0 := 0; 14259#L214-3 start_simulation_~kernel_st~0 := 3; 14257#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 14255#L267-4 assume !(0 == ~q_write_ev~0); 14252#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 14250#L57-3 assume 1 == ~p_dw_pc~0; 14247#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 14245#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 14243#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 14240#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 14239#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 14238#L76-3 assume 1 == ~c_dr_pc~0; 14235#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 14233#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 14231#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 14229#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 14226#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 14227#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 14427#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14426#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 14424#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14423#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 14421#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 14420#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 14418#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 14417#L428 assume !(0 != start_simulation_~tmp~4); 14416#L411-1 assume !false; 14414#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 14412#L356 assume !false; 14410#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14408#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 14406#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14404#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 14402#L336 assume 0 != eval_~tmp___1~0; 14399#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 14397#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 14395#L120 assume 0 == ~p_dw_pc~0; 13691#L131-1 [2020-11-30 00:38:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 1 times [2020-11-30 00:38:08,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796275877] [2020-11-30 00:38:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,415 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:08,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2020351992, now seen corresponding path program 1 times [2020-11-30 00:38:08,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832570608] [2020-11-30 00:38:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 00:38:08,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832570608] [2020-11-30 00:38:08,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:08,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:08,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269106084] [2020-11-30 00:38:08,454 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:38:08,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:08,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:38:08,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:38:08,456 INFO L87 Difference]: Start difference. First operand 855 states and 1059 transitions. cyclomatic complexity: 206 Second operand 3 states. [2020-11-30 00:38:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:08,495 INFO L93 Difference]: Finished difference Result 1641 states and 2015 transitions. [2020-11-30 00:38:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:38:08,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1641 states and 2015 transitions. [2020-11-30 00:38:08,506 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1564 [2020-11-30 00:38:08,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1641 states to 1641 states and 2015 transitions. [2020-11-30 00:38:08,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1641 [2020-11-30 00:38:08,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1641 [2020-11-30 00:38:08,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1641 states and 2015 transitions. [2020-11-30 00:38:08,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:38:08,522 INFO L691 BuchiCegarLoop]: Abstraction has 1641 states and 2015 transitions. [2020-11-30 00:38:08,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states and 2015 transitions. [2020-11-30 00:38:08,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1266. [2020-11-30 00:38:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-11-30 00:38:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1557 transitions. [2020-11-30 00:38:08,550 INFO L714 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-11-30 00:38:08,550 INFO L594 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-11-30 00:38:08,550 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-30 00:38:08,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1266 states and 1557 transitions. [2020-11-30 00:38:08,556 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-11-30 00:38:08,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:08,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:08,557 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:08,557 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:38:08,557 INFO L794 eck$LassoCheckResult]: Stem: 16224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 16182#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 16183#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 16230#L214 assume !(1 == ~q_req_up~0); 16275#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 16276#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 16177#L234-1 assume !(0 == ~q_read_ev~0); 16178#L267-1 assume !(0 == ~q_write_ev~0); 16223#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 16237#L57 assume !(1 == ~p_dw_pc~0); 16281#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 16282#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 16165#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 16166#L307 assume !(0 != activate_threads_~tmp~1); 16186#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 16189#L76 assume !(1 == ~c_dr_pc~0); 16184#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 16185#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 16231#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 16232#L315 assume !(0 != activate_threads_~tmp___0~1); 16215#L315-2 assume !(1 == ~q_read_ev~0); 16169#L285-1 assume !(1 == ~q_write_ev~0); 16170#L411-1 assume !false; 17410#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 17409#L356 assume !false; 17408#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 17407#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 17406#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 17405#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 17404#L336 assume 0 != eval_~tmp___1~0; 16208#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 16209#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 16197#L120 assume 0 == ~p_dw_pc~0; 16198#L131-1 [2020-11-30 00:38:08,557 INFO L796 eck$LassoCheckResult]: Loop: 16198#L131-1 assume !false; 16760#L132 assume !(0 == ~q_free~0); 16239#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 16198#L131-1 [2020-11-30 00:38:08,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 2 times [2020-11-30 00:38:08,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663276919] [2020-11-30 00:38:08,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,590 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:08,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,591 INFO L82 PathProgramCache]: Analyzing trace with hash 206771, now seen corresponding path program 1 times [2020-11-30 00:38:08,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441846409] [2020-11-30 00:38:08,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,603 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:08,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:08,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2006979089, now seen corresponding path program 1 times [2020-11-30 00:38:08,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:08,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452670550] [2020-11-30 00:38:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:08,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:08,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:08,673 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:38:08,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:38:08,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:38:08,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:38:08,674 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:38:08,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:08,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:38:08,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:38:08,675 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-11-30 00:38:08,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:38:08,675 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:38:08,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:08,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:08,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:08,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:08,820 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:38:08,822 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:08,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:38:08,836 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:08,849 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:38:08,849 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~q_buf_0~0=6, ~p_last_write~0=6, ULTIMATE.start_do_write_p_#t~nondet9=6} Honda state: {~q_buf_0~0=6, ~p_last_write~0=6, ULTIMATE.start_do_write_p_#t~nondet9=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:08,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:38:08,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:38:08,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:38:08,916 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~q_req_up~0=1} Honda state: {~q_req_up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:08,960 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:38:08,960 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:38:09,007 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,028 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:38:09,028 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~p_num_write~0=0} Honda state: {~p_num_write~0=0} Generalized eigenvectors: [{~p_num_write~0=-1}, {~p_num_write~0=5}, {~p_num_write~0=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:38:09,068 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:38:09,116 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,162 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:38:09,164 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:38:09,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:38:09,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:38:09,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:38:09,165 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:38:09,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:38:09,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:38:09,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-11-30 00:38:09,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:38:09,165 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:38:09,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:09,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:09,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:09,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:09,287 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:38:09,291 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,295 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 [2020-11-30 00:38:09,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:09,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:09,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,345 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 [2020-11-30 00:38:09,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:09,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:09,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,401 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 [2020-11-30 00:38:09,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:09,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:09,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,453 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 [2020-11-30 00:38:09,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,455 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:09,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:09,458 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:09,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:09,496 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,503 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 [2020-11-30 00:38:09,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,506 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:09,509 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:09,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:09,539 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 [2020-11-30 00:38:09,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,541 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:09,542 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:09,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:09,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,583 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 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,585 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:09,586 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:09,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:09,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:09,611 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 [2020-11-30 00:38:09,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,617 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:09,617 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:09,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:09,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:09,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:09,661 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,671 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 [2020-11-30 00:38:09,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,674 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,683 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:09,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:09,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,728 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 [2020-11-30 00:38:09,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,731 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:09,737 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:09,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:09,785 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 [2020-11-30 00:38:09,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,787 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:09,789 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:09,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:09,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,835 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 [2020-11-30 00:38:09,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,838 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:09,838 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:09,841 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-30 00:38:09,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:09,879 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,891 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 [2020-11-30 00:38:09,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,894 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:09,899 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:09,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,946 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 [2020-11-30 00:38:09,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,949 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:09,951 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:09,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:09,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:09,992 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 [2020-11-30 00:38:09,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:09,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:09,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:09,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:09,994 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:09,996 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:09,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,041 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 [2020-11-30 00:38:10,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:10,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,043 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:10,043 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:10,047 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-11-30 00:38:10,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:10,087 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,090 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 [2020-11-30 00:38:10,093 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,094 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,094 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:10,097 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:10,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,141 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 [2020-11-30 00:38:10,144 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,144 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,144 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:10,146 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:10,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,187 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 [2020-11-30 00:38:10,189 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,190 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,190 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:10,192 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 00:38:10,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,233 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 [2020-11-30 00:38:10,235 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,235 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,235 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:10,236 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 00:38:10,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:10,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:10,287 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:10,298 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 [2020-11-30 00:38:10,302 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,302 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-30 00:38:10,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,302 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,306 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:10,357 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 [2020-11-30 00:38:10,359 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,359 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-30 00:38:10,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,360 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,361 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:10,387 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 [2020-11-30 00:38:10,393 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,393 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-30 00:38:10,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,394 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,396 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,444 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 [2020-11-30 00:38:10,446 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,446 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-30 00:38:10,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,447 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:10,447 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,463 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-30 00:38:10,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:10,508 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,511 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 [2020-11-30 00:38:10,514 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,515 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:10,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,515 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,555 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:10,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,604 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 [2020-11-30 00:38:10,607 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,607 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:10,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,607 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:10,610 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:10,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,662 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 [2020-11-30 00:38:10,664 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,665 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:10,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,665 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:10,668 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-30 00:38:10,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,715 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 [2020-11-30 00:38:10,718 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,718 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:10,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,719 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:10,719 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-30 00:38:10,725 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-11-30 00:38:10,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:10,769 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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 [2020-11-30 00:38:10,772 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 [2020-11-30 00:38:10,775 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,775 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,775 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,778 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:10,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,828 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 [2020-11-30 00:38:10,830 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,830 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,830 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,832 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,873 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 [2020-11-30 00:38:10,875 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,875 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,875 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,877 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:38:10,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,920 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 [2020-11-30 00:38:10,922 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,922 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-30 00:38:10,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,923 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:10,923 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 00:38:10,926 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-30 00:38:10,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:10,967 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:10,980 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 [2020-11-30 00:38:10,985 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:10,986 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:10,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:10,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:10,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:10,986 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-30 00:38:10,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:10,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:10,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:11,037 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 [2020-11-30 00:38:11,040 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:11,040 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:11,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:11,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:11,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:11,040 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-30 00:38:11,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:11,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:11,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:11,085 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 [2020-11-30 00:38:11,087 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:11,087 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:11,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:11,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:11,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:11,088 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-30 00:38:11,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:11,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:11,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:11,138 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 [2020-11-30 00:38:11,142 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-30 00:38:11,142 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-30 00:38:11,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:11,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:11,142 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:11,143 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-30 00:38:11,149 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-30 00:38:11,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:11,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 00:38:12,031 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2020-11-30 00:38:12,319 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-11-30 00:38:12,321 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:38:12,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:38:12,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:38:12,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:38:12,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:38:12,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:12,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:38:12,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:38:12,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Lasso [2020-11-30 00:38:12,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:38:12,322 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:38:12,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:12,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:38:13,144 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:38:13,144 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:13,147 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 [2020-11-30 00:38:13,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:13,193 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 [2020-11-30 00:38:13,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:13,238 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 [2020-11-30 00:38:13,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:13,282 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 [2020-11-30 00:38:13,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/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) [2020-11-30 00:38:13,327 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 [2020-11-30 00:38:13,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:13,366 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 [2020-11-30 00:38:13,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:13,411 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 [2020-11-30 00:38:13,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,441 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 [2020-11-30 00:38:13,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,468 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 [2020-11-30 00:38:13,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,493 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 [2020-11-30 00:38:13,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,497 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,534 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 [2020-11-30 00:38:13,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,560 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 [2020-11-30 00:38:13,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,586 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 [2020-11-30 00:38:13,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,657 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 [2020-11-30 00:38:13,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,697 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 [2020-11-30 00:38:13,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,724 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 [2020-11-30 00:38:13,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,758 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 [2020-11-30 00:38:13,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,784 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 [2020-11-30 00:38:13,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,812 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 [2020-11-30 00:38:13,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:13,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,837 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 [2020-11-30 00:38:13,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:13,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,860 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 [2020-11-30 00:38:13,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,887 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 [2020-11-30 00:38:13,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,915 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,946 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 [2020-11-30 00:38:13,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:13,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:13,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:38:13,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:13,972 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 [2020-11-30 00:38:13,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:13,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:13,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:13,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:13,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:13,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:13,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,008 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 [2020-11-30 00:38:14,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:14,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,045 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 [2020-11-30 00:38:14,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:14,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,071 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 [2020-11-30 00:38:14,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:38:14,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,129 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 [2020-11-30 00:38:14,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,173 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 [2020-11-30 00:38:14,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,217 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 [2020-11-30 00:38:14,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,259 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 [2020-11-30 00:38:14,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,299 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 [2020-11-30 00:38:14,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,343 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 [2020-11-30 00:38:14,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,389 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 [2020-11-30 00:38:14,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:38:14,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,431 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 [2020-11-30 00:38:14,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:38:14,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:38:14,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:38:14,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,472 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 [2020-11-30 00:38:14,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:38:14,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:38:14,474 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:38:14,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:38:14,480 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-30 00:38:14,480 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,492 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:38:14,579 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-30 00:38:14,580 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:38:14,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:38:14,594 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-30 00:38:14,594 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:38:14,594 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~q_free~0) = 1*~q_free~0 Supporting invariants [1*~q_free~0 >= 0] [2020-11-30 00:38:14,675 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 00:38:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:14,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:38:14,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:38:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:14,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:38:14,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:38:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:14,834 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 00:38:14,835 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295 Second operand 5 states. [2020-11-30 00:38:14,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295. Second operand 5 states. Result 1304 states and 1603 transitions. Complement of second has 8 states. [2020-11-30 00:38:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:38:14,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:38:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2020-11-30 00:38:14,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 3 letters. [2020-11-30 00:38:14,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:38:14,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 36 letters. Loop has 3 letters. [2020-11-30 00:38:14,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:38:14,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 6 letters. [2020-11-30 00:38:14,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:38:14,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1603 transitions. [2020-11-30 00:38:14,977 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1233 [2020-11-30 00:38:14,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 1287 states and 1583 transitions. [2020-11-30 00:38:14,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2020-11-30 00:38:14,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1284 [2020-11-30 00:38:14,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1287 states and 1583 transitions. [2020-11-30 00:38:14,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:38:14,989 INFO L691 BuchiCegarLoop]: Abstraction has 1287 states and 1583 transitions. [2020-11-30 00:38:14,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states and 1583 transitions. [2020-11-30 00:38:15,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1271. [2020-11-30 00:38:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-11-30 00:38:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1564 transitions. [2020-11-30 00:38:15,010 INFO L714 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-11-30 00:38:15,010 INFO L594 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-11-30 00:38:15,010 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-11-30 00:38:15,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1271 states and 1564 transitions. [2020-11-30 00:38:15,017 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-11-30 00:38:15,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:15,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:15,023 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:15,023 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:15,023 INFO L794 eck$LassoCheckResult]: Stem: 18965#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 18925#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 18926#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 18972#L214 assume !(1 == ~q_req_up~0); 19008#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 19009#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 18923#L234-1 assume !(0 == ~q_read_ev~0); 18924#L267-1 assume !(0 == ~q_write_ev~0); 18964#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 18981#L57 assume !(1 == ~p_dw_pc~0); 19014#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 19015#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 18910#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 18911#L307 assume !(0 != activate_threads_~tmp~1); 18929#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 18932#L76 assume !(1 == ~c_dr_pc~0); 18927#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 18928#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 18934#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 18976#L315 assume !(0 != activate_threads_~tmp___0~1); 18957#L315-2 assume !(1 == ~q_read_ev~0); 18912#L285-1 assume !(1 == ~q_write_ev~0); 18913#L411-1 assume !false; 19026#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 19025#L356 assume !false; 19024#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 19023#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 19022#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 19021#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 19020#L336 assume 0 != eval_~tmp___1~0; 19019#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 19018#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 19017#L120 assume 0 == ~p_dw_pc~0; 19016#L131-1 assume !false; 18941#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 18978#L341 [2020-11-30 00:38:15,023 INFO L796 eck$LassoCheckResult]: Loop: 18978#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 19128#L360 assume !(0 != eval_~tmp___0~2); 19589#L356 assume !false; 19719#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 19717#L247 assume !(0 == ~p_dw_st~0); 19715#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 19115#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 19712#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 19710#L336 assume 0 != eval_~tmp___1~0; 19706#L336-1 assume !(0 == ~p_dw_st~0); 18978#L341 [2020-11-30 00:38:15,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:15,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1173119927, now seen corresponding path program 1 times [2020-11-30 00:38:15,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:15,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810334008] [2020-11-30 00:38:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:38:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:38:15,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810334008] [2020-11-30 00:38:15,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:38:15,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:38:15,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304833228] [2020-11-30 00:38:15,140 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:38:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 2 times [2020-11-30 00:38:15,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:15,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698991321] [2020-11-30 00:38:15,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,154 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:15,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:15,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:38:15,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:38:15,208 INFO L87 Difference]: Start difference. First operand 1271 states and 1564 transitions. cyclomatic complexity: 298 Second operand 5 states. [2020-11-30 00:38:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:38:15,322 INFO L93 Difference]: Finished difference Result 2343 states and 2843 transitions. [2020-11-30 00:38:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:38:15,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2343 states and 2843 transitions. [2020-11-30 00:38:15,334 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2172 [2020-11-30 00:38:15,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2343 states to 2342 states and 2842 transitions. [2020-11-30 00:38:15,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2337 [2020-11-30 00:38:15,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2337 [2020-11-30 00:38:15,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2342 states and 2842 transitions. [2020-11-30 00:38:15,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:38:15,359 INFO L691 BuchiCegarLoop]: Abstraction has 2342 states and 2842 transitions. [2020-11-30 00:38:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states and 2842 transitions. [2020-11-30 00:38:15,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1697. [2020-11-30 00:38:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2020-11-30 00:38:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2076 transitions. [2020-11-30 00:38:15,394 INFO L714 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-11-30 00:38:15,395 INFO L594 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-11-30 00:38:15,395 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-11-30 00:38:15,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1697 states and 2076 transitions. [2020-11-30 00:38:15,400 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1605 [2020-11-30 00:38:15,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:38:15,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:38:15,401 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [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] [2020-11-30 00:38:15,401 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:38:15,401 INFO L794 eck$LassoCheckResult]: Stem: 22589#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 22549#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 22550#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 22596#L214 assume !(1 == ~q_req_up~0); 22636#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 22637#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 22547#L234-1 assume !(0 == ~q_read_ev~0); 22548#L267-1 assume !(0 == ~q_write_ev~0); 22588#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 22606#L57 assume !(1 == ~p_dw_pc~0); 22641#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 22642#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 22534#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 22535#L307 assume !(0 != activate_threads_~tmp~1); 22553#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 22556#L76 assume !(1 == ~c_dr_pc~0); 22551#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 22552#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 22558#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 22600#L315 assume !(0 != activate_threads_~tmp___0~1); 22580#L315-2 assume !(1 == ~q_read_ev~0); 22536#L285-1 assume !(1 == ~q_write_ev~0); 22537#L411-1 assume !false; 22653#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 22652#L356 assume !false; 22651#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 22650#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 22649#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 22648#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 22647#L336 assume 0 != eval_~tmp___1~0; 22646#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 22645#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 22644#L120 assume 0 == ~p_dw_pc~0; 22643#L131-1 assume !false; 22564#L132 assume !(0 == ~q_free~0); 22604#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 22563#L131-1 assume !false; 22565#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 22603#L341 [2020-11-30 00:38:15,401 INFO L796 eck$LassoCheckResult]: Loop: 22603#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 22679#L360 assume !(0 != eval_~tmp___0~2); 24178#L356 assume !false; 24205#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 24204#L247 assume !(0 == ~p_dw_st~0); 24203#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 22665#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 24202#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 24201#L336 assume 0 != eval_~tmp___1~0; 24180#L336-1 assume !(0 == ~p_dw_st~0); 22603#L341 [2020-11-30 00:38:15,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:15,402 INFO L82 PathProgramCache]: Analyzing trace with hash -266582925, now seen corresponding path program 1 times [2020-11-30 00:38:15,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:15,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310612479] [2020-11-30 00:38:15,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:15,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 3 times [2020-11-30 00:38:15,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:15,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936364954] [2020-11-30 00:38:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:38:15,448 INFO L82 PathProgramCache]: Analyzing trace with hash -799757879, now seen corresponding path program 1 times [2020-11-30 00:38:15,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:38:15,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498949148] [2020-11-30 00:38:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:38:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:38:15,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:38:15,475 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:38:16,247 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 152 [2020-11-30 00:38:16,501 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-30 00:38:16,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:38:16 BoogieIcfgContainer [2020-11-30 00:38:16,529 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:38:16,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:38:16,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:38:16,530 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:38:16,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:38:05" (3/4) ... [2020-11-30 00:38:16,533 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:38:16,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a7df4de3-b591-4edb-87ab-4be3dbf3653a/bin/uautomizer/witness.graphml [2020-11-30 00:38:16,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:38:16,585 INFO L168 Benchmark]: Toolchain (without parser) took 12450.82 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 115.0 MB in the beginning and 161.8 MB in the end (delta: -46.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,586 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 92.3 MB. Free memory is still 50.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:38:16,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.73 ms. Allocated memory is still 140.5 MB. Free memory was 114.7 MB in the beginning and 115.5 MB in the end (delta: -838.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.35 ms. Allocated memory is still 140.5 MB. Free memory was 115.5 MB in the beginning and 113.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,587 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 140.5 MB. Free memory was 113.4 MB in the beginning and 111.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,588 INFO L168 Benchmark]: RCFGBuilder took 577.94 ms. Allocated memory is still 140.5 MB. Free memory was 111.3 MB in the beginning and 81.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,589 INFO L168 Benchmark]: BuchiAutomizer took 11404.40 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 81.9 MB in the beginning and 165.0 MB in the end (delta: -83.0 MB). Peak memory consumption was 96.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,589 INFO L168 Benchmark]: Witness Printer took 54.89 ms. Allocated memory is still 205.5 MB. Free memory was 165.0 MB in the beginning and 161.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:38:16,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 92.3 MB. Free memory is still 50.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.73 ms. Allocated memory is still 140.5 MB. Free memory was 114.7 MB in the beginning and 115.5 MB in the end (delta: -838.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.35 ms. Allocated memory is still 140.5 MB. Free memory was 115.5 MB in the beginning and 113.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.17 ms. Allocated memory is still 140.5 MB. Free memory was 113.4 MB in the beginning and 111.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 577.94 ms. Allocated memory is still 140.5 MB. Free memory was 111.3 MB in the beginning and 81.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11404.40 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 81.9 MB in the beginning and 165.0 MB in the end (delta: -83.0 MB). Peak memory consumption was 96.8 MB. Max. memory is 16.1 GB. * Witness Printer took 54.89 ms. Allocated memory is still 205.5 MB. Free memory was 165.0 MB in the beginning and 161.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (14 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function q_free and consists of 5 locations. 14 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1697 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.3s and 16 iterations. TraceHistogramMax:2. Analysis of lassos took 9.0s. Construction of modules took 0.6s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 2. Automata minimization 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 3045 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 1697 states and ocurred in iteration 15. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2006 SDtfs, 2700 SDslu, 2521 SDs, 0 SdLazy, 329 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN2 SILU0 SILI8 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital85 mio100 ax100 hnf100 lsp40 ukn82 mio100 lsp77 div100 bol100 ite100 ukn100 eq197 hnf91 smp100 dnf138 smp100 tf105 neg92 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 125ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 356]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31060} State at position 1 is {p_last_write=11, c_dr_i=1, c_dr_pc=0, NULL=31062, a_t=0, NULL=0, \result=0, NULL=31060, \result=0, c_num_read=0, tmp=8, c_dr_st=0, kernel_st=1, q_read_ev=2, p_dw_i=1, tmp___1=1, q_req_up=1, tmp___0=0, q_write_ev=2, __retres1=1, NULL=31063, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a0124d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e9c194d=0, p_dw_pc=1, NULL=0, NULL=0, NULL=0, q_free=0, NULL=31061, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24ceef93=0, __retres1=0, p_dw_st=2, \result=0, q_ev=0, c_last_read=0, tmp___0=0, NULL=0, __retres1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@238f2813=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a1b3852=0, tmp=0, q_buf_0=11, p_num_write=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7564e1ac=0, __retres1=0, \result=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@352c0d27=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 331]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int q_buf_0 ; [L18] int q_free ; [L19] int q_read_ev ; [L20] int q_write_ev ; [L21] int q_req_up ; [L22] int q_ev ; [L43] int p_num_write ; [L44] int p_last_write ; [L45] int p_dw_st ; [L46] int p_dw_pc ; [L47] int p_dw_i ; [L48] int c_num_read ; [L49] int c_last_read ; [L50] int c_dr_st ; [L51] int c_dr_pc ; [L52] int c_dr_i ; [L156] static int a_t ; [L458] int __retres1 ; [L444] q_free = 1 [L445] q_write_ev = 2 [L446] q_read_ev = q_write_ev [L447] p_num_write = 0 [L448] p_dw_pc = 0 [L449] p_dw_i = 1 [L450] c_num_read = 0 [L451] c_dr_pc = 0 [L452] c_dr_i = 1 [L398] int kernel_st ; [L399] int tmp ; [L403] kernel_st = 0 [L214] COND FALSE !((int )q_req_up == 1) [L229] COND TRUE (int )p_dw_i == 1 [L230] p_dw_st = 0 [L234] COND TRUE (int )c_dr_i == 1 [L235] c_dr_st = 0 [L267] COND FALSE !((int )q_read_ev == 0) [L272] COND FALSE !((int )q_write_ev == 0) [L300] int tmp ; [L301] int tmp___0 ; [L54] int __retres1 ; [L57] COND FALSE !((int )p_dw_pc == 1) [L67] __retres1 = 0 [L69] return (__retres1); [L305] tmp = is_do_write_p_triggered() [L307] COND FALSE !(\read(tmp)) [L73] int __retres1 ; [L76] COND FALSE !((int )c_dr_pc == 1) [L86] __retres1 = 0 [L88] return (__retres1); [L313] tmp___0 = is_do_read_c_triggered() [L315] COND FALSE !(\read(tmp___0)) [L285] COND FALSE !((int )q_read_ev == 1) [L290] COND FALSE !((int )q_write_ev == 1) [L411] COND TRUE 1 [L414] kernel_st = 1 [L325] int tmp ; [L326] int tmp___0 ; [L327] int tmp___1 ; [L331] COND TRUE 1 [L244] int __retres1 ; [L247] COND TRUE (int )p_dw_st == 0 [L248] __retres1 = 1 [L260] return (__retres1); [L334] tmp___1 = exists_runnable_thread() [L336] COND TRUE \read(tmp___1) [L341] COND TRUE (int )p_dw_st == 0 [L343] tmp = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp) [L347] p_dw_st = 1 [L120] COND TRUE (int )p_dw_pc == 0 [L131] COND TRUE 1 [L133] COND FALSE !((int )q_free == 0) [L143] q_buf_0 = __VERIFIER_nondet_int() [L144] p_last_write = q_buf_0 [L145] p_num_write += 1 [L146] q_free = 0 [L147] q_req_up = 1 [L131] COND TRUE 1 [L133] COND TRUE (int )q_free == 0 [L134] p_dw_st = 2 [L135] p_dw_pc = 1 Loop: [L356] COND TRUE (int )c_dr_st == 0 [L358] tmp___0 = __VERIFIER_nondet_int() [L360] COND FALSE !(\read(tmp___0)) [L331] COND TRUE 1 [L244] int __retres1 ; [L247] COND FALSE !((int )p_dw_st == 0) [L251] COND TRUE (int )c_dr_st == 0 [L252] __retres1 = 1 [L260] return (__retres1); [L334] tmp___1 = exists_runnable_thread() [L336] COND TRUE \read(tmp___1) [L341] COND FALSE !((int )p_dw_st == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...