./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_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:57:50,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:50,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:50,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:50,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:50,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:50,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:50,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:50,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:50,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:50,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:50,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:50,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:50,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:50,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:50,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:50,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:50,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:50,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:50,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:50,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:50,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:50,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:50,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:50,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:50,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:50,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:50,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:50,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:50,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:50,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:50,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:50,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:50,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:50,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:50,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:50,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:50,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:50,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:50,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:50,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:50,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 02:57:50,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:50,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:50,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:50,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:50,213 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:50,214 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:50,214 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:50,215 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:50,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:50,215 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:50,215 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:50,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:50,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:50,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:50,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:50,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:50,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:50,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:50,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:50,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:50,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:50,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:50,218 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:50,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:50,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:50,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:50,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:50,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:50,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:50,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:50,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:50,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:50,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:50,222 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a09fdb769f8192e1aae889aa3c16faf62d88450d [2020-11-28 02:57:50,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:50,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:50,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:50,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:50,506 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:50,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-11-28 02:57:50,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/data/b0db8c30c/72d670631a694f088b4552356c4ebdfc/FLAGabcbece8c [2020-11-28 02:57:51,054 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:51,055 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-11-28 02:57:51,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/data/b0db8c30c/72d670631a694f088b4552356c4ebdfc/FLAGabcbece8c [2020-11-28 02:57:51,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/data/b0db8c30c/72d670631a694f088b4552356c4ebdfc [2020-11-28 02:57:51,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:51,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:51,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:51,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:51,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0bc80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:51,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:51,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,714 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:51,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,771 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:51,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51 WrapperNode [2020-11-28 02:57:51,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:51,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:51,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:51,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:51,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:51,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:51,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:51,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:52,587 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:52,587 INFO L298 CfgBuilder]: Removed 66 assume(true) statements. [2020-11-28 02:57:52,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52 BoogieIcfgContainer [2020-11-28 02:57:52,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:52,590 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:52,591 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:52,594 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:52,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:51" (1/3) ... [2020-11-28 02:57:52,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21b8fe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (2/3) ... [2020-11-28 02:57:52,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21b8fe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/3) ... [2020-11-28 02:57:52,599 INFO L373 chiAutomizerObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2020-11-28 02:57:52,646 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:52,647 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:52,647 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:52,647 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:52,647 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:52,647 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:52,647 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:52,648 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:52,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-28 02:57:52,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-11-28 02:57:52,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:52,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:52,698 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] [2020-11-28 02:57:52,698 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] [2020-11-28 02:57:52,698 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:52,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-28 02:57:52,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-11-28 02:57:52,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:52,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:52,707 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] [2020-11-28 02:57:52,707 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] [2020-11-28 02:57:52,714 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 [2020-11-28 02:57:52,716 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 [2020-11-28 02:57:52,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1146955365, now seen corresponding path program 1 times [2020-11-28 02:57:52,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067805965] [2020-11-28 02:57:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:52,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067805965] [2020-11-28 02:57:52,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:52,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:52,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298036125] [2020-11-28 02:57:52,908 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:52,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2131013586, now seen corresponding path program 1 times [2020-11-28 02:57:52,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000990201] [2020-11-28 02:57:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:52,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000990201] [2020-11-28 02:57:52,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:52,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:52,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568694541] [2020-11-28 02:57:52,983 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:52,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:53,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,041 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-11-28 02:57:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,085 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-11-28 02:57:53,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:53,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 135 transitions. [2020-11-28 02:57:53,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-28 02:57:53,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 128 transitions. [2020-11-28 02:57:53,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-28 02:57:53,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-28 02:57:53,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 128 transitions. [2020-11-28 02:57:53,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:53,120 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-28 02:57:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 128 transitions. [2020-11-28 02:57:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-28 02:57:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-28 02:57:53,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 128 transitions. [2020-11-28 02:57:53,166 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-28 02:57:53,167 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-11-28 02:57:53,167 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:53,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 128 transitions. [2020-11-28 02:57:53,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-28 02:57:53,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:53,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:53,177 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] [2020-11-28 02:57:53,177 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] [2020-11-28 02:57:53,178 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 [2020-11-28 02:57:53,179 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 [2020-11-28 02:57:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1153867225, now seen corresponding path program 1 times [2020-11-28 02:57:53,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301034361] [2020-11-28 02:57:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301034361] [2020-11-28 02:57:53,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:53,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948165677] [2020-11-28 02:57:53,276 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 1 times [2020-11-28 02:57:53,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163203798] [2020-11-28 02:57:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163203798] [2020-11-28 02:57:53,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:53,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379338868] [2020-11-28 02:57:53,359 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:53,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:53,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,360 INFO L87 Difference]: Start difference. First operand 86 states and 128 transitions. cyclomatic complexity: 43 Second operand 3 states. [2020-11-28 02:57:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,374 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2020-11-28 02:57:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:53,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 127 transitions. [2020-11-28 02:57:53,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-28 02:57:53,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 86 states and 127 transitions. [2020-11-28 02:57:53,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-28 02:57:53,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-28 02:57:53,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 127 transitions. [2020-11-28 02:57:53,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:53,380 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-28 02:57:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 127 transitions. [2020-11-28 02:57:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-28 02:57:53,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-28 02:57:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2020-11-28 02:57:53,386 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-28 02:57:53,387 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-11-28 02:57:53,387 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:53,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 127 transitions. [2020-11-28 02:57:53,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-11-28 02:57:53,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:53,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:53,389 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] [2020-11-28 02:57:53,390 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] [2020-11-28 02:57:53,390 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 [2020-11-28 02:57:53,390 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 [2020-11-28 02:57:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,391 INFO L82 PathProgramCache]: Analyzing trace with hash 434480677, now seen corresponding path program 1 times [2020-11-28 02:57:53,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397832880] [2020-11-28 02:57:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397832880] [2020-11-28 02:57:53,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:53,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933421133] [2020-11-28 02:57:53,450 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 2 times [2020-11-28 02:57:53,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638582174] [2020-11-28 02:57:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638582174] [2020-11-28 02:57:53,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:53,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104215878] [2020-11-28 02:57:53,532 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:53,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:53,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:53,533 INFO L87 Difference]: Start difference. First operand 86 states and 127 transitions. cyclomatic complexity: 42 Second operand 4 states. [2020-11-28 02:57:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,740 INFO L93 Difference]: Finished difference Result 177 states and 256 transitions. [2020-11-28 02:57:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:53,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 256 transitions. [2020-11-28 02:57:53,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-28 02:57:53,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 256 transitions. [2020-11-28 02:57:53,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-28 02:57:53,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-28 02:57:53,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 256 transitions. [2020-11-28 02:57:53,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:53,750 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-28 02:57:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 256 transitions. [2020-11-28 02:57:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-11-28 02:57:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-11-28 02:57:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2020-11-28 02:57:53,770 INFO L714 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-28 02:57:53,770 INFO L594 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-11-28 02:57:53,770 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:57:53,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 256 transitions. [2020-11-28 02:57:53,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-28 02:57:53,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:53,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:53,773 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] [2020-11-28 02:57:53,773 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] [2020-11-28 02:57:53,774 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 [2020-11-28 02:57:53,774 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 [2020-11-28 02:57:53,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,775 INFO L82 PathProgramCache]: Analyzing trace with hash -845383063, now seen corresponding path program 1 times [2020-11-28 02:57:53,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780588906] [2020-11-28 02:57:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780588906] [2020-11-28 02:57:53,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:53,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062518985] [2020-11-28 02:57:53,834 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:53,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,834 INFO L82 PathProgramCache]: Analyzing trace with hash 164769050, now seen corresponding path program 1 times [2020-11-28 02:57:53,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323180303] [2020-11-28 02:57:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323180303] [2020-11-28 02:57:53,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:53,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119830705] [2020-11-28 02:57:53,923 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:53,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:53,924 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. cyclomatic complexity: 81 Second operand 5 states. [2020-11-28 02:57:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,080 INFO L93 Difference]: Finished difference Result 582 states and 820 transitions. [2020-11-28 02:57:54,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:54,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 820 transitions. [2020-11-28 02:57:54,087 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 550 [2020-11-28 02:57:54,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 582 states and 820 transitions. [2020-11-28 02:57:54,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 582 [2020-11-28 02:57:54,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 582 [2020-11-28 02:57:54,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 582 states and 820 transitions. [2020-11-28 02:57:54,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:54,110 INFO L691 BuchiCegarLoop]: Abstraction has 582 states and 820 transitions. [2020-11-28 02:57:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states and 820 transitions. [2020-11-28 02:57:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 554. [2020-11-28 02:57:54,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-11-28 02:57:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 788 transitions. [2020-11-28 02:57:54,162 INFO L714 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-11-28 02:57:54,162 INFO L594 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-11-28 02:57:54,162 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:57:54,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 554 states and 788 transitions. [2020-11-28 02:57:54,166 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 526 [2020-11-28 02:57:54,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:54,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:54,168 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] [2020-11-28 02:57:54,168 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] [2020-11-28 02:57:54,168 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 [2020-11-28 02:57:54,168 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 [2020-11-28 02:57:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2124707798, now seen corresponding path program 1 times [2020-11-28 02:57:54,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687727016] [2020-11-28 02:57:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:54,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687727016] [2020-11-28 02:57:54,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:54,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:54,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454626488] [2020-11-28 02:57:54,251 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,251 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 1 times [2020-11-28 02:57:54,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581666069] [2020-11-28 02:57:54,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:54,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581666069] [2020-11-28 02:57:54,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:54,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:54,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853768981] [2020-11-28 02:57:54,315 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:54,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:54,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:54,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:54,316 INFO L87 Difference]: Start difference. First operand 554 states and 788 transitions. cyclomatic complexity: 238 Second operand 5 states. [2020-11-28 02:57:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,410 INFO L93 Difference]: Finished difference Result 1469 states and 2085 transitions. [2020-11-28 02:57:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:54,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1469 states and 2085 transitions. [2020-11-28 02:57:54,427 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1424 [2020-11-28 02:57:54,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1469 states to 1469 states and 2085 transitions. [2020-11-28 02:57:54,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1469 [2020-11-28 02:57:54,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1469 [2020-11-28 02:57:54,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1469 states and 2085 transitions. [2020-11-28 02:57:54,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:54,449 INFO L691 BuchiCegarLoop]: Abstraction has 1469 states and 2085 transitions. [2020-11-28 02:57:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states and 2085 transitions. [2020-11-28 02:57:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 587. [2020-11-28 02:57:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-11-28 02:57:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 821 transitions. [2020-11-28 02:57:54,473 INFO L714 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-11-28 02:57:54,473 INFO L594 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-11-28 02:57:54,474 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:57:54,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 821 transitions. [2020-11-28 02:57:54,478 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 556 [2020-11-28 02:57:54,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:54,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:54,479 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] [2020-11-28 02:57:54,480 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] [2020-11-28 02:57:54,480 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 [2020-11-28 02:57:54,480 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 [2020-11-28 02:57:54,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705876, now seen corresponding path program 1 times [2020-11-28 02:57:54,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497047008] [2020-11-28 02:57:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:54,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497047008] [2020-11-28 02:57:54,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:54,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:54,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752060093] [2020-11-28 02:57:54,539 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,540 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 2 times [2020-11-28 02:57:54,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33073565] [2020-11-28 02:57:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:54,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33073565] [2020-11-28 02:57:54,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:54,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:54,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767819877] [2020-11-28 02:57:54,598 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:54,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:54,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:54,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:54,599 INFO L87 Difference]: Start difference. First operand 587 states and 821 transitions. cyclomatic complexity: 238 Second operand 3 states. [2020-11-28 02:57:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,664 INFO L93 Difference]: Finished difference Result 821 states and 1132 transitions. [2020-11-28 02:57:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:54,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 821 states and 1132 transitions. [2020-11-28 02:57:54,672 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 791 [2020-11-28 02:57:54,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 821 states to 821 states and 1132 transitions. [2020-11-28 02:57:54,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 821 [2020-11-28 02:57:54,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 821 [2020-11-28 02:57:54,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 821 states and 1132 transitions. [2020-11-28 02:57:54,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:54,683 INFO L691 BuchiCegarLoop]: Abstraction has 821 states and 1132 transitions. [2020-11-28 02:57:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states and 1132 transitions. [2020-11-28 02:57:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 546. [2020-11-28 02:57:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-11-28 02:57:54,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 756 transitions. [2020-11-28 02:57:54,697 INFO L714 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-11-28 02:57:54,697 INFO L594 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-11-28 02:57:54,697 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 02:57:54,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 546 states and 756 transitions. [2020-11-28 02:57:54,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 518 [2020-11-28 02:57:54,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:54,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:54,702 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] [2020-11-28 02:57:54,702 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] [2020-11-28 02:57:54,702 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 [2020-11-28 02:57:54,703 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 [2020-11-28 02:57:54,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,703 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 1 times [2020-11-28 02:57:54,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550850604] [2020-11-28 02:57:54,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:54,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:54,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:54,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:54,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1705119526, now seen corresponding path program 1 times [2020-11-28 02:57:54,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609770056] [2020-11-28 02:57:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:54,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609770056] [2020-11-28 02:57:54,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:54,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:54,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906805875] [2020-11-28 02:57:54,809 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:54,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:54,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:54,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:54,810 INFO L87 Difference]: Start difference. First operand 546 states and 756 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-11-28 02:57:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,910 INFO L93 Difference]: Finished difference Result 850 states and 1157 transitions. [2020-11-28 02:57:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:57:54,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 850 states and 1157 transitions. [2020-11-28 02:57:54,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 820 [2020-11-28 02:57:54,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 850 states to 850 states and 1157 transitions. [2020-11-28 02:57:54,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 850 [2020-11-28 02:57:54,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 850 [2020-11-28 02:57:54,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 850 states and 1157 transitions. [2020-11-28 02:57:54,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:54,931 INFO L691 BuchiCegarLoop]: Abstraction has 850 states and 1157 transitions. [2020-11-28 02:57:54,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states and 1157 transitions. [2020-11-28 02:57:54,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 573. [2020-11-28 02:57:54,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-11-28 02:57:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 783 transitions. [2020-11-28 02:57:54,946 INFO L714 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-11-28 02:57:54,946 INFO L594 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-11-28 02:57:54,946 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-28 02:57:54,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 573 states and 783 transitions. [2020-11-28 02:57:54,950 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 545 [2020-11-28 02:57:54,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:54,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:54,952 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] [2020-11-28 02:57:54,952 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] [2020-11-28 02:57:54,952 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 [2020-11-28 02:57:54,953 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 [2020-11-28 02:57:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 2 times [2020-11-28 02:57:54,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420723404] [2020-11-28 02:57:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:54,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:54,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:54,996 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:54,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,997 INFO L82 PathProgramCache]: Analyzing trace with hash -499741119, now seen corresponding path program 1 times [2020-11-28 02:57:54,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397673371] [2020-11-28 02:57:54,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397673371] [2020-11-28 02:57:55,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:55,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100460760] [2020-11-28 02:57:55,098 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:55,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:55,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:55,099 INFO L87 Difference]: Start difference. First operand 573 states and 783 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-11-28 02:57:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,198 INFO L93 Difference]: Finished difference Result 995 states and 1367 transitions. [2020-11-28 02:57:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:55,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 995 states and 1367 transitions. [2020-11-28 02:57:55,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 967 [2020-11-28 02:57:55,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 995 states to 995 states and 1367 transitions. [2020-11-28 02:57:55,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 995 [2020-11-28 02:57:55,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 995 [2020-11-28 02:57:55,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 995 states and 1367 transitions. [2020-11-28 02:57:55,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:55,224 INFO L691 BuchiCegarLoop]: Abstraction has 995 states and 1367 transitions. [2020-11-28 02:57:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states and 1367 transitions. [2020-11-28 02:57:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 579. [2020-11-28 02:57:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-11-28 02:57:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 781 transitions. [2020-11-28 02:57:55,243 INFO L714 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-11-28 02:57:55,243 INFO L594 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-11-28 02:57:55,243 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-28 02:57:55,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 579 states and 781 transitions. [2020-11-28 02:57:55,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 551 [2020-11-28 02:57:55,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,248 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] [2020-11-28 02:57:55,249 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] [2020-11-28 02:57:55,249 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 [2020-11-28 02:57:55,249 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 [2020-11-28 02:57:55,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 3 times [2020-11-28 02:57:55,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161078841] [2020-11-28 02:57:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1718729920, now seen corresponding path program 1 times [2020-11-28 02:57:55,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246752820] [2020-11-28 02:57:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246752820] [2020-11-28 02:57:55,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:55,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156467409] [2020-11-28 02:57:55,344 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:55,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:55,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:55,345 INFO L87 Difference]: Start difference. First operand 579 states and 781 transitions. cyclomatic complexity: 204 Second operand 3 states. [2020-11-28 02:57:55,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,382 INFO L93 Difference]: Finished difference Result 670 states and 871 transitions. [2020-11-28 02:57:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:55,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 670 states and 871 transitions. [2020-11-28 02:57:55,389 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 633 [2020-11-28 02:57:55,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 670 states to 670 states and 871 transitions. [2020-11-28 02:57:55,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 670 [2020-11-28 02:57:55,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 670 [2020-11-28 02:57:55,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 670 states and 871 transitions. [2020-11-28 02:57:55,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:55,400 INFO L691 BuchiCegarLoop]: Abstraction has 670 states and 871 transitions. [2020-11-28 02:57:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states and 871 transitions. [2020-11-28 02:57:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 619. [2020-11-28 02:57:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-11-28 02:57:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 807 transitions. [2020-11-28 02:57:55,416 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-11-28 02:57:55,416 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-11-28 02:57:55,416 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-28 02:57:55,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 807 transitions. [2020-11-28 02:57:55,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-11-28 02:57:55,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,427 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] [2020-11-28 02:57:55,427 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,427 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 [2020-11-28 02:57:55,434 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 [2020-11-28 02:57:55,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 1 times [2020-11-28 02:57:55,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161266273] [2020-11-28 02:57:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161266273] [2020-11-28 02:57:55,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:55,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417830996] [2020-11-28 02:57:55,468 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash 147133599, now seen corresponding path program 1 times [2020-11-28 02:57:55,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820105893] [2020-11-28 02:57:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820105893] [2020-11-28 02:57:55,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:55,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956781942] [2020-11-28 02:57:55,530 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:55,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:55,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:55,531 INFO L87 Difference]: Start difference. First operand 619 states and 807 transitions. cyclomatic complexity: 190 Second operand 5 states. [2020-11-28 02:57:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,634 INFO L93 Difference]: Finished difference Result 699 states and 887 transitions. [2020-11-28 02:57:55,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:57:55,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 699 states and 887 transitions. [2020-11-28 02:57:55,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 662 [2020-11-28 02:57:55,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 699 states to 699 states and 887 transitions. [2020-11-28 02:57:55,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 699 [2020-11-28 02:57:55,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 699 [2020-11-28 02:57:55,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 699 states and 887 transitions. [2020-11-28 02:57:55,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:55,649 INFO L691 BuchiCegarLoop]: Abstraction has 699 states and 887 transitions. [2020-11-28 02:57:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states and 887 transitions. [2020-11-28 02:57:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 619. [2020-11-28 02:57:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-11-28 02:57:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 799 transitions. [2020-11-28 02:57:55,664 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-11-28 02:57:55,664 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-11-28 02:57:55,664 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-28 02:57:55,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 799 transitions. [2020-11-28 02:57:55,668 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-11-28 02:57:55,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,672 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] [2020-11-28 02:57:55,672 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,672 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 [2020-11-28 02:57:55,673 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 [2020-11-28 02:57:55,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 2 times [2020-11-28 02:57:55,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071456382] [2020-11-28 02:57:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071456382] [2020-11-28 02:57:55,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:55,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990361101] [2020-11-28 02:57:55,717 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:55,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,718 INFO L82 PathProgramCache]: Analyzing trace with hash -532924771, now seen corresponding path program 1 times [2020-11-28 02:57:55,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689344115] [2020-11-28 02:57:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689344115] [2020-11-28 02:57:55,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:55,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900243416] [2020-11-28 02:57:55,732 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:55,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:55,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:55,733 INFO L87 Difference]: Start difference. First operand 619 states and 799 transitions. cyclomatic complexity: 182 Second operand 3 states. [2020-11-28 02:57:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,775 INFO L93 Difference]: Finished difference Result 855 states and 1085 transitions. [2020-11-28 02:57:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:55,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1085 transitions. [2020-11-28 02:57:55,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-28 02:57:55,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1085 transitions. [2020-11-28 02:57:55,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-11-28 02:57:55,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-11-28 02:57:55,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1085 transitions. [2020-11-28 02:57:55,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:55,797 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-28 02:57:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1085 transitions. [2020-11-28 02:57:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-11-28 02:57:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-11-28 02:57:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1085 transitions. [2020-11-28 02:57:55,819 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-28 02:57:55,820 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-11-28 02:57:55,820 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-28 02:57:55,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1085 transitions. [2020-11-28 02:57:55,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-28 02:57:55,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,835 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] [2020-11-28 02:57:55,835 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,835 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 [2020-11-28 02:57:55,835 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 [2020-11-28 02:57:55,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 3 times [2020-11-28 02:57:55,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926336658] [2020-11-28 02:57:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:55,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926336658] [2020-11-28 02:57:55,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:55,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265935491] [2020-11-28 02:57:55,876 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,876 INFO L82 PathProgramCache]: Analyzing trace with hash 605009515, now seen corresponding path program 1 times [2020-11-28 02:57:55,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560875176] [2020-11-28 02:57:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,908 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:55,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:55,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:55,990 INFO L87 Difference]: Start difference. First operand 855 states and 1085 transitions. cyclomatic complexity: 232 Second operand 3 states. [2020-11-28 02:57:56,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,111 INFO L93 Difference]: Finished difference Result 855 states and 1059 transitions. [2020-11-28 02:57:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:56,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1059 transitions. [2020-11-28 02:57:56,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-28 02:57:56,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1059 transitions. [2020-11-28 02:57:56,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-11-28 02:57:56,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-11-28 02:57:56,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1059 transitions. [2020-11-28 02:57:56,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:56,134 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-28 02:57:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1059 transitions. [2020-11-28 02:57:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-11-28 02:57:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-11-28 02:57:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1059 transitions. [2020-11-28 02:57:56,156 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-28 02:57:56,157 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-11-28 02:57:56,157 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-28 02:57:56,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1059 transitions. [2020-11-28 02:57:56,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-11-28 02:57:56,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:56,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:56,163 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] [2020-11-28 02:57:56,163 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] [2020-11-28 02:57:56,165 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 [2020-11-28 02:57:56,165 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 [2020-11-28 02:57:56,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 1 times [2020-11-28 02:57:56,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788401243] [2020-11-28 02:57:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,207 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2020351992, now seen corresponding path program 1 times [2020-11-28 02:57:56,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976854717] [2020-11-28 02:57:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 02:57:56,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976854717] [2020-11-28 02:57:56,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:56,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:56,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792064742] [2020-11-28 02:57:56,242 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:56,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:56,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:56,244 INFO L87 Difference]: Start difference. First operand 855 states and 1059 transitions. cyclomatic complexity: 206 Second operand 3 states. [2020-11-28 02:57:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,289 INFO L93 Difference]: Finished difference Result 1641 states and 2015 transitions. [2020-11-28 02:57:56,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:56,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1641 states and 2015 transitions. [2020-11-28 02:57:56,302 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1564 [2020-11-28 02:57:56,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1641 states to 1641 states and 2015 transitions. [2020-11-28 02:57:56,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1641 [2020-11-28 02:57:56,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1641 [2020-11-28 02:57:56,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1641 states and 2015 transitions. [2020-11-28 02:57:56,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:56,319 INFO L691 BuchiCegarLoop]: Abstraction has 1641 states and 2015 transitions. [2020-11-28 02:57:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states and 2015 transitions. [2020-11-28 02:57:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1266. [2020-11-28 02:57:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-11-28 02:57:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1557 transitions. [2020-11-28 02:57:56,348 INFO L714 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-11-28 02:57:56,348 INFO L594 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-11-28 02:57:56,348 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-28 02:57:56,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1266 states and 1557 transitions. [2020-11-28 02:57:56,355 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-11-28 02:57:56,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:56,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:56,356 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] [2020-11-28 02:57:56,356 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:56,356 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 [2020-11-28 02:57:56,356 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 [2020-11-28 02:57:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,357 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 2 times [2020-11-28 02:57:56,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045035646] [2020-11-28 02:57:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash 206771, now seen corresponding path program 1 times [2020-11-28 02:57:56,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042493594] [2020-11-28 02:57:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,404 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:56,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,405 INFO L82 PathProgramCache]: Analyzing trace with hash -2006979089, now seen corresponding path program 1 times [2020-11-28 02:57:56,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081180525] [2020-11-28 02:57:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:56,483 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:56,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:56,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:56,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:56,484 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 02:57:56,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:56,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:56,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:56,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-11-28 02:57:56,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:56,485 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:56,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:56,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:56,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:56,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:56,673 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:56,674 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:56,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 02:57:56,681 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 [2020-11-28 02:57:56,697 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 02:57:56,698 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:56,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 02:57:56,743 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:56,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 02:57:56,749 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:56,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 02:57:56,791 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:56,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 02:57:56,866 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 [2020-11-28 02:57:56,894 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 02:57:56,894 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:56,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 02:57:56,936 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:56,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 02:57:56,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 02:57:57,027 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 02:57:57,029 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:57,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:57,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:57,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:57,030 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:57,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:57,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:57,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-11-28 02:57:57,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:57,030 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:57,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:57,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:57,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:57,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:57,196 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:57,200 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,208 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 [2020-11-28 02:57:57,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:57,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,245 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 [2020-11-28 02:57:57,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:57,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:57,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,276 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:57,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:57,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,313 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 [2020-11-28 02:57:57,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,315 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:57,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:57,318 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:57,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:57,357 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,365 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 [2020-11-28 02:57:57,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,368 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:57,372 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:57,373 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 [2020-11-28 02:57:57,376 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:57:57,419 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 [2020-11-28 02:57:57,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,422 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:57,424 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:57,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,468 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 [2020-11-28 02:57:57,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,471 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:57,473 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:57,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:57:57,508 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 [2020-11-28 02:57:57,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,510 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:57,510 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:57,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:57,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:57,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:57,558 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,569 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 [2020-11-28 02:57:57,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,573 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:57,582 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:57,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,632 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 [2020-11-28 02:57:57,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,635 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:57,638 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:57,638 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 [2020-11-28 02:57:57,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,683 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 [2020-11-28 02:57:57,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,686 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:57,688 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:57,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:57,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,734 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 [2020-11-28 02:57:57,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,736 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:57,736 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:57,740 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 02:57:57,740 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 [2020-11-28 02:57:57,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:57,779 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,792 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 [2020-11-28 02:57:57,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,795 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:57,800 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:57,800 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 [2020-11-28 02:57:57,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,849 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 [2020-11-28 02:57:57,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,851 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:57,854 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:57,854 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 [2020-11-28 02:57:57,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,895 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 [2020-11-28 02:57:57,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,897 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:57,899 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:57,900 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 [2020-11-28 02:57:57,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,940 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 [2020-11-28 02:57:57,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:57,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,943 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:57,943 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:57,947 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-11-28 02:57:57,947 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 [2020-11-28 02:57:57,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:57,986 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:57,990 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 [2020-11-28 02:57:57,993 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:57,993 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:57,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:57,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:57,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:57,994 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:57,996 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:57,996 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 [2020-11-28 02:57:58,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,040 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 [2020-11-28 02:57:58,043 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,043 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,043 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:58,045 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:58,045 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 [2020-11-28 02:57:58,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,087 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 [2020-11-28 02:57:58,090 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,090 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,091 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:58,092 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 02:57:58,092 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 [2020-11-28 02:57:58,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,133 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 [2020-11-28 02:57:58,135 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,135 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,135 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:58,136 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 02:57:58,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:58,143 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 [2020-11-28 02:57:58,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:58,183 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,188 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 [2020-11-28 02:57:58,191 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,191 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-28 02:57:58,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,192 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,195 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,240 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 [2020-11-28 02:57:58,243 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,243 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-28 02:57:58,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,243 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,246 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,290 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 [2020-11-28 02:57:58,292 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,292 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-28 02:57:58,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,292 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,295 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,339 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 [2020-11-28 02:57:58,341 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,341 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-28 02:57:58,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,342 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:58,342 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,354 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 02:57:58,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:58,437 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,442 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 [2020-11-28 02:57:58,446 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,446 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,446 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:58,451 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:58,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,503 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 [2020-11-28 02:57:58,505 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,505 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,506 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:58,507 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:58,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:58,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,546 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 [2020-11-28 02:57:58,549 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,549 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,550 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:58,554 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-28 02:57:58,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:58,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,608 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 [2020-11-28 02:57:58,610 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,611 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,611 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:58,611 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-28 02:57:58,617 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-11-28 02:57:58,618 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 [2020-11-28 02:57:58,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:58,667 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,670 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 [2020-11-28 02:57:58,673 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,673 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,673 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,677 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,721 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 [2020-11-28 02:57:58,723 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,723 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,724 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,725 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 [2020-11-28 02:57:58,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,765 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 [2020-11-28 02:57:58,767 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,767 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,767 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,769 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:57:58,769 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 [2020-11-28 02:57:58,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,811 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 [2020-11-28 02:57:58,813 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,813 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-28 02:57:58,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,814 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:58,814 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-28 02:57:58,818 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 02:57:58,818 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 [2020-11-28 02:57:58,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:57:58,859 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,868 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 [2020-11-28 02:57:58,871 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,871 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,872 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-28 02:57:58,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:58,875 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 [2020-11-28 02:57:58,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,922 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 [2020-11-28 02:57:58,924 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,924 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,924 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-28 02:57:58,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:58,927 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 [2020-11-28 02:57:58,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:58,970 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 [2020-11-28 02:57:58,973 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:58,974 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:58,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:58,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:58,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:58,974 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-28 02:57:58,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:58,976 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 [2020-11-28 02:57:58,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:57:59,020 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 [2020-11-28 02:57:59,023 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-28 02:57:59,023 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-28 02:57:59,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:59,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:59,023 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:59,023 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-28 02:57:59,029 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-28 02:57:59,029 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 [2020-11-28 02:57:59,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 02:58:00,013 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2020-11-28 02:58:00,278 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-11-28 02:58:00,280 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:00,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:00,281 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:00,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:00,281 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:00,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:00,281 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:00,281 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Lasso [2020-11-28 02:58:00,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:00,281 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:00,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:01,114 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,122 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 [2020-11-28 02:58:01,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,125 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 [2020-11-28 02:58:01,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,169 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 [2020-11-28 02:58:01,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,173 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 [2020-11-28 02:58:01,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,213 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 [2020-11-28 02:58:01,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,216 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 [2020-11-28 02:58:01,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,255 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 [2020-11-28 02:58:01,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,259 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 [2020-11-28 02:58:01,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,300 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 [2020-11-28 02:58:01,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,303 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 [2020-11-28 02:58:01,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,340 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 [2020-11-28 02:58:01,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,382 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 [2020-11-28 02:58:01,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:01,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,427 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 [2020-11-28 02:58:01,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,476 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 [2020-11-28 02:58:01,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,516 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 [2020-11-28 02:58:01,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,554 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 [2020-11-28 02:58:01,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,581 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 [2020-11-28 02:58:01,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,611 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 [2020-11-28 02:58:01,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,645 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,677 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 [2020-11-28 02:58:01,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,705 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 [2020-11-28 02:58:01,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,746 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 [2020-11-28 02:58:01,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,778 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 [2020-11-28 02:58:01,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,806 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 [2020-11-28 02:58:01,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:01,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,832 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 [2020-11-28 02:58:01,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:01,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,859 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 [2020-11-28 02:58:01,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:01,886 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 [2020-11-28 02:58:01,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,906 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,944 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 [2020-11-28 02:58:01,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:01,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:01,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:01,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:01,981 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 [2020-11-28 02:58:01,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:01,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:01,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:01,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:01,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:01,987 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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 [2020-11-28 02:58:02,010 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 [2020-11-28 02:58:02,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:02,067 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 [2020-11-28 02:58:02,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:02,115 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 [2020-11-28 02:58:02,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:02,161 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 [2020-11-28 02:58:02,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,166 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 [2020-11-28 02:58:02,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,203 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 [2020-11-28 02:58:02,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,232 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 [2020-11-28 02:58:02,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,238 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,261 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 [2020-11-28 02:58:02,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,304 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 [2020-11-28 02:58:02,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,313 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,335 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 [2020-11-28 02:58:02,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,364 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 [2020-11-28 02:58:02,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,391 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 [2020-11-28 02:58:02,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,421 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 [2020-11-28 02:58:02,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,422 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:58:02,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,426 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-28 02:58:02,427 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-28 02:58:02,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:02,499 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 02:58:02,499 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_832b82ca-97f9-45ca-abad-f1cc27b73da5/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) [2020-11-28 02:58:02,503 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 [2020-11-28 02:58:02,509 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-28 02:58:02,509 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:02,510 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~q_free~0) = 1*~q_free~0 Supporting invariants [1*~q_free~0 >= 0] [2020-11-28 02:58:02,577 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-28 02:58:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:02,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 02:58:02,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:02,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:02,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:02,811 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 [2020-11-28 02:58:02,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295 Second operand 5 states. [2020-11-28 02:58:02,956 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. [2020-11-28 02:58:02,957 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 [2020-11-28 02:58:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 02:58:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2020-11-28 02:58:02,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 3 letters. [2020-11-28 02:58:02,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:02,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 36 letters. Loop has 3 letters. [2020-11-28 02:58:02,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:02,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 6 letters. [2020-11-28 02:58:02,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:02,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1603 transitions. [2020-11-28 02:58:02,974 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1233 [2020-11-28 02:58:02,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 1287 states and 1583 transitions. [2020-11-28 02:58:02,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2020-11-28 02:58:02,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1284 [2020-11-28 02:58:02,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1287 states and 1583 transitions. [2020-11-28 02:58:02,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:02,988 INFO L691 BuchiCegarLoop]: Abstraction has 1287 states and 1583 transitions. [2020-11-28 02:58:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states and 1583 transitions. [2020-11-28 02:58:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1271. [2020-11-28 02:58:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-11-28 02:58:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1564 transitions. [2020-11-28 02:58:03,016 INFO L714 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-11-28 02:58:03,016 INFO L594 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-11-28 02:58:03,016 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-11-28 02:58:03,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1271 states and 1564 transitions. [2020-11-28 02:58:03,025 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-11-28 02:58:03,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:03,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:03,033 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] [2020-11-28 02:58:03,033 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:03,033 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 [2020-11-28 02:58:03,033 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 [2020-11-28 02:58:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1173119927, now seen corresponding path program 1 times [2020-11-28 02:58:03,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956672467] [2020-11-28 02:58:03,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:03,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956672467] [2020-11-28 02:58:03,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:03,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:58:03,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051940983] [2020-11-28 02:58:03,104 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:58:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 2 times [2020-11-28 02:58:03,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534995220] [2020-11-28 02:58:03,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,114 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:03,163 INFO L87 Difference]: Start difference. First operand 1271 states and 1564 transitions. cyclomatic complexity: 298 Second operand 5 states. [2020-11-28 02:58:03,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:03,257 INFO L93 Difference]: Finished difference Result 2343 states and 2843 transitions. [2020-11-28 02:58:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:58:03,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2343 states and 2843 transitions. [2020-11-28 02:58:03,271 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2172 [2020-11-28 02:58:03,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2343 states to 2342 states and 2842 transitions. [2020-11-28 02:58:03,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2337 [2020-11-28 02:58:03,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2337 [2020-11-28 02:58:03,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2342 states and 2842 transitions. [2020-11-28 02:58:03,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:03,295 INFO L691 BuchiCegarLoop]: Abstraction has 2342 states and 2842 transitions. [2020-11-28 02:58:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states and 2842 transitions. [2020-11-28 02:58:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1697. [2020-11-28 02:58:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2020-11-28 02:58:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2076 transitions. [2020-11-28 02:58:03,333 INFO L714 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-11-28 02:58:03,333 INFO L594 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-11-28 02:58:03,333 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-11-28 02:58:03,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1697 states and 2076 transitions. [2020-11-28 02:58:03,339 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1605 [2020-11-28 02:58:03,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:03,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:03,340 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] [2020-11-28 02:58:03,340 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:03,340 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 [2020-11-28 02:58:03,340 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 [2020-11-28 02:58:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,341 INFO L82 PathProgramCache]: Analyzing trace with hash -266582925, now seen corresponding path program 1 times [2020-11-28 02:58:03,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704332864] [2020-11-28 02:58:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,373 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 3 times [2020-11-28 02:58:03,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702361941] [2020-11-28 02:58:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,382 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,383 INFO L82 PathProgramCache]: Analyzing trace with hash -799757879, now seen corresponding path program 1 times [2020-11-28 02:58:03,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711022236] [2020-11-28 02:58:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:04,419 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 152 [2020-11-28 02:58:04,663 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-28 02:58:04,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:58:04 BoogieIcfgContainer [2020-11-28 02:58:04,706 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:58:04,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:04,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:04,709 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:04,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/4) ... [2020-11-28 02:58:04,712 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 02:58:04,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_832b82ca-97f9-45ca-abad-f1cc27b73da5/bin/uautomizer/witness.graphml [2020-11-28 02:58:04,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:04,771 INFO L168 Benchmark]: Toolchain (without parser) took 13326.96 ms. Allocated memory was 94.4 MB in the beginning and 201.3 MB in the end (delta: 107.0 MB). Free memory was 63.1 MB in the beginning and 118.2 MB in the end (delta: -55.1 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,771 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:04,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.60 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.1 MB in the beginning and 95.0 MB in the end (delta: -31.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 92.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,774 INFO L168 Benchmark]: Boogie Preprocessor took 32.09 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,774 INFO L168 Benchmark]: RCFGBuilder took 736.56 ms. Allocated memory is still 121.6 MB. Free memory was 91.5 MB in the beginning and 62.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,775 INFO L168 Benchmark]: BuchiAutomizer took 12116.19 ms. Allocated memory was 121.6 MB in the beginning and 201.3 MB in the end (delta: 79.7 MB). Free memory was 61.4 MB in the beginning and 121.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,775 INFO L168 Benchmark]: Witness Printer took 61.80 ms. Allocated memory is still 201.3 MB. Free memory was 121.4 MB in the beginning and 118.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.60 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.1 MB in the beginning and 95.0 MB in the end (delta: -31.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 92.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.09 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 736.56 ms. Allocated memory is still 121.6 MB. Free memory was 91.5 MB in the beginning and 62.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12116.19 ms. Allocated memory was 121.6 MB in the beginning and 201.3 MB in the end (delta: 79.7 MB). Free memory was 61.4 MB in the beginning and 121.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. * Witness Printer took 61.80 ms. Allocated memory is still 201.3 MB. Free memory was 121.4 MB in the beginning and 118.2 MB in the end (delta: 3.1 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 12.0s and 16 iterations. TraceHistogramMax:2. Analysis of lassos took 9.4s. Construction of modules took 0.6s. Büchi inclusion checks took 0.9s. 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: 89ms 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=643} State at position 1 is {p_last_write=11, c_dr_i=1, c_dr_pc=0, NULL=644, a_t=0, NULL=0, \result=0, NULL=643, \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=645, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b4154ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@175876ef=0, p_dw_pc=1, NULL=0, NULL=0, NULL=0, q_free=0, NULL=646, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62a11c8f=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@5cc485ed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472dd24f=0, tmp=0, q_buf_0=11, p_num_write=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c301b68=0, __retres1=0, \result=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f1ca92e=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...