./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.25-9a8b2e8 [2020-10-20 08:02:22,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:02:22,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:02:22,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:02:22,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:02:22,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:02:22,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:02:22,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:02:22,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:02:22,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:02:22,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:02:22,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:02:22,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:02:22,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:02:22,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:02:22,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:02:22,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:02:22,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:02:22,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:02:22,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:02:22,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:02:22,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:02:22,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:02:22,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:02:22,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:02:22,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:02:22,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:02:22,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:02:22,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:02:22,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:02:22,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:02:22,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:02:22,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:02:22,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:02:22,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:02:22,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:02:22,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:02:22,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:02:22,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:02:22,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:02:22,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:02:22,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:02:22,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:02:22,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:02:22,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:02:22,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:02:22,973 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:02:22,973 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:02:22,973 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:02:22,974 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:02:22,974 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:02:22,974 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:02:22,974 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:02:22,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:02:22,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:02:22,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:02:22,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:02:22,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:02:22,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:02:22,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:02:22,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:02:22,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:02:22,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:02:22,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:02:22,976 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:02:22,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:02:22,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:02:22,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:02:22,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:02:22,977 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:02:22,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:02:22,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:02:22,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:02:22,978 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:02:22,979 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:02:22,979 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a09fdb769f8192e1aae889aa3c16faf62d88450d [2020-10-20 08:02:23,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:02:23,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:02:23,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:02:23,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:02:23,205 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:02:23,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-10-20 08:02:23,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70eff5d2/bfe2d8254ceb4aa2a0e9510a2755d6c7/FLAGd1b463090 [2020-10-20 08:02:23,767 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:02:23,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2020-10-20 08:02:23,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70eff5d2/bfe2d8254ceb4aa2a0e9510a2755d6c7/FLAGd1b463090 [2020-10-20 08:02:24,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70eff5d2/bfe2d8254ceb4aa2a0e9510a2755d6c7 [2020-10-20 08:02:24,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:02:24,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:02:24,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:02:24,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:02:24,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:02:24,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e6bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24, skipping insertion in model container [2020-10-20 08:02:24,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:02:24,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:02:24,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:02:24,485 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:02:24,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:02:24,550 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:02:24,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24 WrapperNode [2020-10-20 08:02:24,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:02:24,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:02:24,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:02:24,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:02:24,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:02:24,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:02:24,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:02:24,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:02:24,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... [2020-10-20 08:02:24,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:02:24,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:02:24,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:02:24,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:02:24,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:02:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 08:02:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:02:24,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:02:25,235 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:02:25,236 INFO L298 CfgBuilder]: Removed 66 assume(true) statements. [2020-10-20 08:02:25,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:02:25 BoogieIcfgContainer [2020-10-20 08:02:25,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:02:25,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:02:25,239 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:02:25,243 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:02:25,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:02:25,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:02:24" (1/3) ... [2020-10-20 08:02:25,246 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@238b2694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:02:25, skipping insertion in model container [2020-10-20 08:02:25,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:02:25,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:02:24" (2/3) ... [2020-10-20 08:02:25,247 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@238b2694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:02:25, skipping insertion in model container [2020-10-20 08:02:25,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:02:25,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:02:25" (3/3) ... [2020-10-20 08:02:25,249 INFO L373 chiAutomizerObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2020-10-20 08:02:25,301 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:02:25,301 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:02:25,302 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:02:25,302 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:02:25,302 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:02:25,302 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:02:25,303 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:02:25,303 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:02:25,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-10-20 08:02:25,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-10-20 08:02:25,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:25,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:25,365 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] [2020-10-20 08:02:25,366 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] [2020-10-20 08:02:25,366 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:02:25,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-10-20 08:02:25,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2020-10-20 08:02:25,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:25,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:25,375 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] [2020-10-20 08:02:25,376 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] [2020-10-20 08:02:25,386 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 [2020-10-20 08:02:25,397 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 [2020-10-20 08:02:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:25,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1146955365, now seen corresponding path program 1 times [2020-10-20 08:02:25,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:25,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948352657] [2020-10-20 08:02:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:25,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948352657] [2020-10-20 08:02:25,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:25,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:25,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179007940] [2020-10-20 08:02:25,626 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2131013586, now seen corresponding path program 1 times [2020-10-20 08:02:25,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:25,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810147682] [2020-10-20 08:02:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:25,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810147682] [2020-10-20 08:02:25,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:25,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:02:25,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459753984] [2020-10-20 08:02:25,648 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:25,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:25,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:25,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:25,668 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-10-20 08:02:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:25,697 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-10-20 08:02:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:25,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 135 transitions. [2020-10-20 08:02:25,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-10-20 08:02:25,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 128 transitions. [2020-10-20 08:02:25,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-10-20 08:02:25,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-10-20 08:02:25,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 128 transitions. [2020-10-20 08:02:25,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:25,714 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-10-20 08:02:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 128 transitions. [2020-10-20 08:02:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-20 08:02:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-20 08:02:25,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 128 transitions. [2020-10-20 08:02:25,750 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-10-20 08:02:25,750 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2020-10-20 08:02:25,750 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:02:25,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 128 transitions. [2020-10-20 08:02:25,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-10-20 08:02:25,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:25,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:25,754 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] [2020-10-20 08:02:25,754 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] [2020-10-20 08:02:25,755 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 [2020-10-20 08:02:25,755 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 [2020-10-20 08:02:25,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:25,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1153867225, now seen corresponding path program 1 times [2020-10-20 08:02:25,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:25,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306300958] [2020-10-20 08:02:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:25,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306300958] [2020-10-20 08:02:25,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:25,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:25,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616758082] [2020-10-20 08:02:25,826 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:25,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 1 times [2020-10-20 08:02:25,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:25,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615621154] [2020-10-20 08:02:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:25,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615621154] [2020-10-20 08:02:25,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:25,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:25,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743986242] [2020-10-20 08:02:25,878 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:25,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:25,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:25,879 INFO L87 Difference]: Start difference. First operand 86 states and 128 transitions. cyclomatic complexity: 43 Second operand 3 states. [2020-10-20 08:02:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:25,894 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2020-10-20 08:02:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:25,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 127 transitions. [2020-10-20 08:02:25,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-10-20 08:02:25,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 86 states and 127 transitions. [2020-10-20 08:02:25,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-10-20 08:02:25,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-10-20 08:02:25,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 127 transitions. [2020-10-20 08:02:25,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:25,901 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-10-20 08:02:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 127 transitions. [2020-10-20 08:02:25,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-20 08:02:25,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-20 08:02:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2020-10-20 08:02:25,908 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-10-20 08:02:25,908 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2020-10-20 08:02:25,909 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:02:25,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 127 transitions. [2020-10-20 08:02:25,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2020-10-20 08:02:25,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:25,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:25,912 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] [2020-10-20 08:02:25,912 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] [2020-10-20 08:02:25,913 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 [2020-10-20 08:02:25,913 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 [2020-10-20 08:02:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:25,913 INFO L82 PathProgramCache]: Analyzing trace with hash 434480677, now seen corresponding path program 1 times [2020-10-20 08:02:25,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:25,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060506763] [2020-10-20 08:02:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060506763] [2020-10-20 08:02:26,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:02:26,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816872411] [2020-10-20 08:02:26,009 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1970207384, now seen corresponding path program 2 times [2020-10-20 08:02:26,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128603503] [2020-10-20 08:02:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128603503] [2020-10-20 08:02:26,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:26,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173917524] [2020-10-20 08:02:26,063 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:26,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:26,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:02:26,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:02:26,064 INFO L87 Difference]: Start difference. First operand 86 states and 127 transitions. cyclomatic complexity: 42 Second operand 4 states. [2020-10-20 08:02:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:26,212 INFO L93 Difference]: Finished difference Result 177 states and 256 transitions. [2020-10-20 08:02:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:02:26,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 256 transitions. [2020-10-20 08:02:26,217 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-10-20 08:02:26,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 256 transitions. [2020-10-20 08:02:26,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-10-20 08:02:26,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-10-20 08:02:26,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 256 transitions. [2020-10-20 08:02:26,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:26,222 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-10-20 08:02:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 256 transitions. [2020-10-20 08:02:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-10-20 08:02:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-20 08:02:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2020-10-20 08:02:26,239 INFO L714 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-10-20 08:02:26,239 INFO L594 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2020-10-20 08:02:26,239 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:02:26,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 256 transitions. [2020-10-20 08:02:26,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-10-20 08:02:26,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:26,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:26,243 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] [2020-10-20 08:02:26,243 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] [2020-10-20 08:02:26,244 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 [2020-10-20 08:02:26,244 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 [2020-10-20 08:02:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,244 INFO L82 PathProgramCache]: Analyzing trace with hash -845383063, now seen corresponding path program 1 times [2020-10-20 08:02:26,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018612846] [2020-10-20 08:02:26,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018612846] [2020-10-20 08:02:26,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:02:26,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649519532] [2020-10-20 08:02:26,313 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,313 INFO L82 PathProgramCache]: Analyzing trace with hash 164769050, now seen corresponding path program 1 times [2020-10-20 08:02:26,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705499935] [2020-10-20 08:02:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705499935] [2020-10-20 08:02:26,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:26,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088106325] [2020-10-20 08:02:26,349 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:26,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:26,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:26,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:26,350 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. cyclomatic complexity: 81 Second operand 5 states. [2020-10-20 08:02:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:26,472 INFO L93 Difference]: Finished difference Result 582 states and 820 transitions. [2020-10-20 08:02:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:02:26,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 820 transitions. [2020-10-20 08:02:26,478 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 550 [2020-10-20 08:02:26,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 582 states and 820 transitions. [2020-10-20 08:02:26,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 582 [2020-10-20 08:02:26,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 582 [2020-10-20 08:02:26,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 582 states and 820 transitions. [2020-10-20 08:02:26,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:26,489 INFO L691 BuchiCegarLoop]: Abstraction has 582 states and 820 transitions. [2020-10-20 08:02:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states and 820 transitions. [2020-10-20 08:02:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 554. [2020-10-20 08:02:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-20 08:02:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 788 transitions. [2020-10-20 08:02:26,518 INFO L714 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-10-20 08:02:26,518 INFO L594 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2020-10-20 08:02:26,518 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:02:26,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 554 states and 788 transitions. [2020-10-20 08:02:26,522 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 526 [2020-10-20 08:02:26,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:26,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:26,524 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] [2020-10-20 08:02:26,524 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] [2020-10-20 08:02:26,524 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 [2020-10-20 08:02:26,525 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 [2020-10-20 08:02:26,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2124707798, now seen corresponding path program 1 times [2020-10-20 08:02:26,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580420036] [2020-10-20 08:02:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580420036] [2020-10-20 08:02:26,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692920398] [2020-10-20 08:02:26,576 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:26,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,576 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 1 times [2020-10-20 08:02:26,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458993477] [2020-10-20 08:02:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458993477] [2020-10-20 08:02:26,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:26,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758348063] [2020-10-20 08:02:26,609 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:26,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:26,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:26,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:26,610 INFO L87 Difference]: Start difference. First operand 554 states and 788 transitions. cyclomatic complexity: 238 Second operand 5 states. [2020-10-20 08:02:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:26,695 INFO L93 Difference]: Finished difference Result 1469 states and 2085 transitions. [2020-10-20 08:02:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:02:26,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1469 states and 2085 transitions. [2020-10-20 08:02:26,713 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1424 [2020-10-20 08:02:26,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1469 states to 1469 states and 2085 transitions. [2020-10-20 08:02:26,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1469 [2020-10-20 08:02:26,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1469 [2020-10-20 08:02:26,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1469 states and 2085 transitions. [2020-10-20 08:02:26,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:26,735 INFO L691 BuchiCegarLoop]: Abstraction has 1469 states and 2085 transitions. [2020-10-20 08:02:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states and 2085 transitions. [2020-10-20 08:02:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 587. [2020-10-20 08:02:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-20 08:02:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 821 transitions. [2020-10-20 08:02:26,757 INFO L714 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-10-20 08:02:26,757 INFO L594 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2020-10-20 08:02:26,757 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 08:02:26,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 821 transitions. [2020-10-20 08:02:26,763 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 556 [2020-10-20 08:02:26,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:26,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:26,765 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] [2020-10-20 08:02:26,765 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] [2020-10-20 08:02:26,765 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 [2020-10-20 08:02:26,765 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 [2020-10-20 08:02:26,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,766 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705876, now seen corresponding path program 1 times [2020-10-20 08:02:26,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655235215] [2020-10-20 08:02:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655235215] [2020-10-20 08:02:26,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:26,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546411532] [2020-10-20 08:02:26,802 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,802 INFO L82 PathProgramCache]: Analyzing trace with hash -808719909, now seen corresponding path program 2 times [2020-10-20 08:02:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566826164] [2020-10-20 08:02:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:26,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566826164] [2020-10-20 08:02:26,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:26,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:26,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522748038] [2020-10-20 08:02:26,855 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:26,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:26,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:26,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:26,856 INFO L87 Difference]: Start difference. First operand 587 states and 821 transitions. cyclomatic complexity: 238 Second operand 3 states. [2020-10-20 08:02:26,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:26,887 INFO L93 Difference]: Finished difference Result 821 states and 1132 transitions. [2020-10-20 08:02:26,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:26,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 821 states and 1132 transitions. [2020-10-20 08:02:26,908 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 791 [2020-10-20 08:02:26,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 821 states to 821 states and 1132 transitions. [2020-10-20 08:02:26,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 821 [2020-10-20 08:02:26,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 821 [2020-10-20 08:02:26,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 821 states and 1132 transitions. [2020-10-20 08:02:26,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:26,917 INFO L691 BuchiCegarLoop]: Abstraction has 821 states and 1132 transitions. [2020-10-20 08:02:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states and 1132 transitions. [2020-10-20 08:02:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 546. [2020-10-20 08:02:26,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-20 08:02:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 756 transitions. [2020-10-20 08:02:26,928 INFO L714 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-10-20 08:02:26,928 INFO L594 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2020-10-20 08:02:26,928 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 08:02:26,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 546 states and 756 transitions. [2020-10-20 08:02:26,932 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 518 [2020-10-20 08:02:26,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:26,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:26,934 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] [2020-10-20 08:02:26,935 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] [2020-10-20 08:02:26,935 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 [2020-10-20 08:02:26,938 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 [2020-10-20 08:02:26,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:26,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 1 times [2020-10-20 08:02:26,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:26,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649659510] [2020-10-20 08:02:26,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:26,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:26,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,020 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1705119526, now seen corresponding path program 1 times [2020-10-20 08:02:27,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638080417] [2020-10-20 08:02:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638080417] [2020-10-20 08:02:27,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:27,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575172610] [2020-10-20 08:02:27,082 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:27,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:27,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:27,083 INFO L87 Difference]: Start difference. First operand 546 states and 756 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-10-20 08:02:27,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,171 INFO L93 Difference]: Finished difference Result 850 states and 1157 transitions. [2020-10-20 08:02:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 08:02:27,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 850 states and 1157 transitions. [2020-10-20 08:02:27,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 820 [2020-10-20 08:02:27,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 850 states to 850 states and 1157 transitions. [2020-10-20 08:02:27,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 850 [2020-10-20 08:02:27,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 850 [2020-10-20 08:02:27,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 850 states and 1157 transitions. [2020-10-20 08:02:27,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,206 INFO L691 BuchiCegarLoop]: Abstraction has 850 states and 1157 transitions. [2020-10-20 08:02:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states and 1157 transitions. [2020-10-20 08:02:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 573. [2020-10-20 08:02:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-10-20 08:02:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 783 transitions. [2020-10-20 08:02:27,217 INFO L714 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-10-20 08:02:27,217 INFO L594 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2020-10-20 08:02:27,217 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 08:02:27,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 573 states and 783 transitions. [2020-10-20 08:02:27,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 545 [2020-10-20 08:02:27,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:27,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:27,222 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] [2020-10-20 08:02:27,222 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] [2020-10-20 08:02:27,222 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 [2020-10-20 08:02:27,222 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 [2020-10-20 08:02:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 2 times [2020-10-20 08:02:27,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012403170] [2020-10-20 08:02:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:27,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,247 INFO L82 PathProgramCache]: Analyzing trace with hash -499741119, now seen corresponding path program 1 times [2020-10-20 08:02:27,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069930253] [2020-10-20 08:02:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069930253] [2020-10-20 08:02:27,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:02:27,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503764170] [2020-10-20 08:02:27,307 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:27,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:27,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:27,307 INFO L87 Difference]: Start difference. First operand 573 states and 783 transitions. cyclomatic complexity: 212 Second operand 5 states. [2020-10-20 08:02:27,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,366 INFO L93 Difference]: Finished difference Result 995 states and 1367 transitions. [2020-10-20 08:02:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:02:27,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 995 states and 1367 transitions. [2020-10-20 08:02:27,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 967 [2020-10-20 08:02:27,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 995 states to 995 states and 1367 transitions. [2020-10-20 08:02:27,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 995 [2020-10-20 08:02:27,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 995 [2020-10-20 08:02:27,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 995 states and 1367 transitions. [2020-10-20 08:02:27,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,384 INFO L691 BuchiCegarLoop]: Abstraction has 995 states and 1367 transitions. [2020-10-20 08:02:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states and 1367 transitions. [2020-10-20 08:02:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 579. [2020-10-20 08:02:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-20 08:02:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 781 transitions. [2020-10-20 08:02:27,418 INFO L714 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-10-20 08:02:27,418 INFO L594 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2020-10-20 08:02:27,418 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 08:02:27,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 579 states and 781 transitions. [2020-10-20 08:02:27,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 551 [2020-10-20 08:02:27,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:27,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:27,423 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] [2020-10-20 08:02:27,423 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] [2020-10-20 08:02:27,423 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 [2020-10-20 08:02:27,423 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 [2020-10-20 08:02:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 3 times [2020-10-20 08:02:27,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103827402] [2020-10-20 08:02:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,446 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:27,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1718729920, now seen corresponding path program 1 times [2020-10-20 08:02:27,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812402446] [2020-10-20 08:02:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812402446] [2020-10-20 08:02:27,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:27,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860883756] [2020-10-20 08:02:27,469 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:27,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:27,470 INFO L87 Difference]: Start difference. First operand 579 states and 781 transitions. cyclomatic complexity: 204 Second operand 3 states. [2020-10-20 08:02:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,494 INFO L93 Difference]: Finished difference Result 670 states and 871 transitions. [2020-10-20 08:02:27,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:27,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 670 states and 871 transitions. [2020-10-20 08:02:27,499 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 633 [2020-10-20 08:02:27,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 670 states to 670 states and 871 transitions. [2020-10-20 08:02:27,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 670 [2020-10-20 08:02:27,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 670 [2020-10-20 08:02:27,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 670 states and 871 transitions. [2020-10-20 08:02:27,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,505 INFO L691 BuchiCegarLoop]: Abstraction has 670 states and 871 transitions. [2020-10-20 08:02:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states and 871 transitions. [2020-10-20 08:02:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 619. [2020-10-20 08:02:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-10-20 08:02:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 807 transitions. [2020-10-20 08:02:27,515 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-10-20 08:02:27,515 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2020-10-20 08:02:27,515 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-20 08:02:27,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 807 transitions. [2020-10-20 08:02:27,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-10-20 08:02:27,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:27,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:27,520 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] [2020-10-20 08:02:27,520 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:02:27,520 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 [2020-10-20 08:02:27,521 INFO L796 eck$LassoCheckResult]: Loop: 9222#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 9223#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9746#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 9745#L336 assume 0 != eval_~tmp___1~0; 9170#L336-1 assume !(0 == ~p_dw_st~0); 9174#L341 assume !(0 == ~c_dr_st~0); 9201#L356 assume !false; 9139#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9140#L247 assume !(0 == ~p_dw_st~0); 9222#L251 [2020-10-20 08:02:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 1 times [2020-10-20 08:02:27,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168711432] [2020-10-20 08:02:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168711432] [2020-10-20 08:02:27,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:02:27,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291391739] [2020-10-20 08:02:27,544 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,545 INFO L82 PathProgramCache]: Analyzing trace with hash 147133599, now seen corresponding path program 1 times [2020-10-20 08:02:27,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405842058] [2020-10-20 08:02:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405842058] [2020-10-20 08:02:27,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:02:27,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486955290] [2020-10-20 08:02:27,600 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:27,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:27,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:27,601 INFO L87 Difference]: Start difference. First operand 619 states and 807 transitions. cyclomatic complexity: 190 Second operand 5 states. [2020-10-20 08:02:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,685 INFO L93 Difference]: Finished difference Result 699 states and 887 transitions. [2020-10-20 08:02:27,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 08:02:27,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 699 states and 887 transitions. [2020-10-20 08:02:27,691 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 662 [2020-10-20 08:02:27,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 699 states to 699 states and 887 transitions. [2020-10-20 08:02:27,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 699 [2020-10-20 08:02:27,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 699 [2020-10-20 08:02:27,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 699 states and 887 transitions. [2020-10-20 08:02:27,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,699 INFO L691 BuchiCegarLoop]: Abstraction has 699 states and 887 transitions. [2020-10-20 08:02:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states and 887 transitions. [2020-10-20 08:02:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 619. [2020-10-20 08:02:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-10-20 08:02:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 799 transitions. [2020-10-20 08:02:27,712 INFO L714 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-10-20 08:02:27,712 INFO L594 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2020-10-20 08:02:27,712 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-20 08:02:27,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 799 transitions. [2020-10-20 08:02:27,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2020-10-20 08:02:27,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:27,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:27,717 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] [2020-10-20 08:02:27,718 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:02:27,718 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 [2020-10-20 08:02:27,718 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 [2020-10-20 08:02:27,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 2 times [2020-10-20 08:02:27,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431092764] [2020-10-20 08:02:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431092764] [2020-10-20 08:02:27,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:02:27,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717784117] [2020-10-20 08:02:27,742 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,743 INFO L82 PathProgramCache]: Analyzing trace with hash -532924771, now seen corresponding path program 1 times [2020-10-20 08:02:27,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913584754] [2020-10-20 08:02:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913584754] [2020-10-20 08:02:27,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:02:27,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637639418] [2020-10-20 08:02:27,755 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:27,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:27,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:27,756 INFO L87 Difference]: Start difference. First operand 619 states and 799 transitions. cyclomatic complexity: 182 Second operand 3 states. [2020-10-20 08:02:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,786 INFO L93 Difference]: Finished difference Result 855 states and 1085 transitions. [2020-10-20 08:02:27,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:27,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1085 transitions. [2020-10-20 08:02:27,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-10-20 08:02:27,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1085 transitions. [2020-10-20 08:02:27,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-10-20 08:02:27,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-10-20 08:02:27,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1085 transitions. [2020-10-20 08:02:27,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,804 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-10-20 08:02:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1085 transitions. [2020-10-20 08:02:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-10-20 08:02:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-10-20 08:02:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1085 transitions. [2020-10-20 08:02:27,847 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-10-20 08:02:27,847 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2020-10-20 08:02:27,848 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-20 08:02:27,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1085 transitions. [2020-10-20 08:02:27,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-10-20 08:02:27,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:27,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:27,853 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] [2020-10-20 08:02:27,853 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:02:27,854 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 [2020-10-20 08:02:27,854 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 [2020-10-20 08:02:27,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 3 times [2020-10-20 08:02:27,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613643553] [2020-10-20 08:02:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:27,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:27,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613643553] [2020-10-20 08:02:27,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:27,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:02:27,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841266550] [2020-10-20 08:02:27,877 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:27,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:27,878 INFO L82 PathProgramCache]: Analyzing trace with hash 605009515, now seen corresponding path program 1 times [2020-10-20 08:02:27,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:27,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760609983] [2020-10-20 08:02:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:27,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:27,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:27,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:27,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:27,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:27,952 INFO L87 Difference]: Start difference. First operand 855 states and 1085 transitions. cyclomatic complexity: 232 Second operand 3 states. [2020-10-20 08:02:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:27,975 INFO L93 Difference]: Finished difference Result 855 states and 1059 transitions. [2020-10-20 08:02:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:27,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1059 transitions. [2020-10-20 08:02:27,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-10-20 08:02:27,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1059 transitions. [2020-10-20 08:02:27,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2020-10-20 08:02:27,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2020-10-20 08:02:27,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1059 transitions. [2020-10-20 08:02:27,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:27,993 INFO L691 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-10-20 08:02:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1059 transitions. [2020-10-20 08:02:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2020-10-20 08:02:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-10-20 08:02:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1059 transitions. [2020-10-20 08:02:28,009 INFO L714 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-10-20 08:02:28,009 INFO L594 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2020-10-20 08:02:28,009 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-20 08:02:28,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1059 transitions. [2020-10-20 08:02:28,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2020-10-20 08:02:28,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:28,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:28,016 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] [2020-10-20 08:02:28,016 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] [2020-10-20 08:02:28,017 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 [2020-10-20 08:02:28,017 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 [2020-10-20 08:02:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 1 times [2020-10-20 08:02:28,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:28,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249015592] [2020-10-20 08:02:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2020351992, now seen corresponding path program 1 times [2020-10-20 08:02:28,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:28,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565390482] [2020-10-20 08:02:28,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 08:02:28,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565390482] [2020-10-20 08:02:28,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:28,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:28,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981601526] [2020-10-20 08:02:28,099 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:02:28,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:28,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:02:28,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:02:28,100 INFO L87 Difference]: Start difference. First operand 855 states and 1059 transitions. cyclomatic complexity: 206 Second operand 3 states. [2020-10-20 08:02:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:28,134 INFO L93 Difference]: Finished difference Result 1641 states and 2015 transitions. [2020-10-20 08:02:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:02:28,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1641 states and 2015 transitions. [2020-10-20 08:02:28,146 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1564 [2020-10-20 08:02:28,155 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1641 states to 1641 states and 2015 transitions. [2020-10-20 08:02:28,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1641 [2020-10-20 08:02:28,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1641 [2020-10-20 08:02:28,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1641 states and 2015 transitions. [2020-10-20 08:02:28,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:02:28,161 INFO L691 BuchiCegarLoop]: Abstraction has 1641 states and 2015 transitions. [2020-10-20 08:02:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states and 2015 transitions. [2020-10-20 08:02:28,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1266. [2020-10-20 08:02:28,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-10-20 08:02:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1557 transitions. [2020-10-20 08:02:28,185 INFO L714 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-10-20 08:02:28,185 INFO L594 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2020-10-20 08:02:28,186 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-20 08:02:28,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1266 states and 1557 transitions. [2020-10-20 08:02:28,193 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-10-20 08:02:28,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:28,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:28,194 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] [2020-10-20 08:02:28,194 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 08:02:28,194 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 [2020-10-20 08:02:28,195 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 [2020-10-20 08:02:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:28,195 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 2 times [2020-10-20 08:02:28,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:28,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283020630] [2020-10-20 08:02:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:28,220 INFO L82 PathProgramCache]: Analyzing trace with hash 206771, now seen corresponding path program 1 times [2020-10-20 08:02:28,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:28,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232759313] [2020-10-20 08:02:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,228 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:28,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2006979089, now seen corresponding path program 1 times [2020-10-20 08:02:28,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:28,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797105696] [2020-10-20 08:02:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:28,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:28,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:28,290 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:02:28,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:02:28,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:02:28,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:02:28,292 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 08:02:28,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:02:28,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:02:28,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-10-20 08:02:28,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:02:28,293 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:02:28,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,425 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:02:28,426 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 08:02:28,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 08:02:28,444 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 08:02:28,444 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:28,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 08:02:28,491 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 [2020-10-20 08:02:28,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 08:02:28,497 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:28,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 08:02:28,542 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 08:02:28,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 08:02:28,705 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 08:02:28,705 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:28,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,794 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:28,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 08:02:28,839 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,876 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 08:02:28,878 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:02:28,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:02:28,878 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:02:28,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:02:28,878 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:02:28,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:02:28,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:02:28,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2020-10-20 08:02:28,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:02:28,879 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:02:28,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:28,970 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:02:28,975 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:28,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:02:28,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:28,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:28,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:28,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:28,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:28,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:28,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:28,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:29,021 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 [2020-10-20 08:02:29,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:29,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:29,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,087 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 [2020-10-20 08:02:29,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:29,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:29,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:29,134 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 [2020-10-20 08:02:29,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,136 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:29,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:29,137 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:29,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:29,176 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,197 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 [2020-10-20 08:02:29,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,201 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,203 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,203 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 [2020-10-20 08:02:29,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:29,235 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 [2020-10-20 08:02:29,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,238 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,239 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,271 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 [2020-10-20 08:02:29,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,273 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,274 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:29,302 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 [2020-10-20 08:02:29,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,308 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:29,308 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:29,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,322 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:29,354 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,371 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 [2020-10-20 08:02:29,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,374 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:29,378 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:29,379 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 [2020-10-20 08:02:29,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,422 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 [2020-10-20 08:02:29,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,424 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:29,426 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:29,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,429 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,464 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 [2020-10-20 08:02:29,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,466 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:29,467 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:29,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,501 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 [2020-10-20 08:02:29,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,503 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:29,503 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:29,505 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:02:29,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:29,544 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,557 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 [2020-10-20 08:02:29,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,561 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:29,564 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:29,565 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 [2020-10-20 08:02:29,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,630 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 [2020-10-20 08:02:29,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,633 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:29,635 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:29,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,679 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 [2020-10-20 08:02:29,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,682 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:29,684 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:29,684 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 [2020-10-20 08:02:29,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:02:29,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:29,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,725 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:29,725 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:29,730 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-10-20 08:02:29,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:29,758 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:02:29,764 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,764 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:29,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,765 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,767 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,798 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 [2020-10-20 08:02:29,800 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,800 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:29,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,800 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,802 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,829 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,830 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:29,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,830 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,831 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 08:02:29,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:29,863 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 [2020-10-20 08:02:29,865 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,865 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:29,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,866 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:29,866 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 08:02:29,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:29,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:29,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:29,918 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,923 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 [2020-10-20 08:02:29,927 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,927 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 08:02:29,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,928 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:29,932 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:29,932 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 [2020-10-20 08:02:29,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:29,995 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 [2020-10-20 08:02:29,998 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:29,998 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 08:02:29,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:29,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:29,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:29,999 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,001 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:30,001 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 [2020-10-20 08:02:30,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,035 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 [2020-10-20 08:02:30,036 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,036 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 08:02:30,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,037 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,039 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:30,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,072 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 [2020-10-20 08:02:30,074 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,074 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 08:02:30,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,074 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:30,074 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,084 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:02:30,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:30,114 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,116 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 [2020-10-20 08:02:30,118 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,118 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,119 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:30,122 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:30,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,174 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 [2020-10-20 08:02:30,176 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,176 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,177 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:30,179 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:30,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,229 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 [2020-10-20 08:02:30,232 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,232 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,233 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:30,235 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 08:02:30,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,281 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 [2020-10-20 08:02:30,284 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,284 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,285 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:30,285 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 08:02:30,289 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-10-20 08:02:30,290 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 [2020-10-20 08:02:30,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:30,337 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,341 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 [2020-10-20 08:02:30,344 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,345 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:30,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,346 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,348 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:30,348 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 [2020-10-20 08:02:30,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,396 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 [2020-10-20 08:02:30,398 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,399 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:30,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,399 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,401 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:30,401 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 [2020-10-20 08:02:30,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,442 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 [2020-10-20 08:02:30,444 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,444 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:30,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,445 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,446 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 08:02:30,446 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 [2020-10-20 08:02:30,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,486 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 [2020-10-20 08:02:30,488 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,488 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 08:02:30,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,489 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:30,489 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 08:02:30,491 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:02:30,491 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 [2020-10-20 08:02:30,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:30,521 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,525 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 [2020-10-20 08:02:30,527 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,528 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,528 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 08:02:30,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:30,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:30,582 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 [2020-10-20 08:02:30,585 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,585 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,585 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:30,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,622 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 [2020-10-20 08:02:30,625 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,625 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:30,626 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 08:02:30,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:30,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,634 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:30,658 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 [2020-10-20 08:02:30,660 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 08:02:30,660 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 08:02:30,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:30,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:30,660 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:30,660 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 08:02:30,664 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 08:02:30,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:30,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 08:02:31,431 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2020-10-20 08:02:31,638 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-20 08:02:31,640 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:02:31,640 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:02:31,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:02:31,641 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:02:31,641 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:02:31,641 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:31,641 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:02:31,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:02:31,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Lasso [2020-10-20 08:02:31,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:02:31,642 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:02:31,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:31,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:02:32,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:02:32,333 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:02:32,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,382 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 [2020-10-20 08:02:32,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,410 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 [2020-10-20 08:02:32,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,435 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 [2020-10-20 08:02:32,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,464 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 [2020-10-20 08:02:32,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,495 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 [2020-10-20 08:02:32,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,523 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 [2020-10-20 08:02:32,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,552 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 [2020-10-20 08:02:32,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,581 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 [2020-10-20 08:02:32,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,608 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 [2020-10-20 08:02:32,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,642 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 [2020-10-20 08:02:32,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,669 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 [2020-10-20 08:02:32,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,696 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 [2020-10-20 08:02:32,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:32,738 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 [2020-10-20 08:02:32,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:32,769 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 [2020-10-20 08:02:32,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:32,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,797 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 [2020-10-20 08:02:32,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,826 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 [2020-10-20 08:02:32,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,854 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 [2020-10-20 08:02:32,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,882 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 [2020-10-20 08:02:32,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,909 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 [2020-10-20 08:02:32,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:32,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:32,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:32,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,935 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 [2020-10-20 08:02:32,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:32,964 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 [2020-10-20 08:02:32,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:32,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:32,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:32,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:32,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:32,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:32,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:33,013 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 [2020-10-20 08:02:33,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:33,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:33,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:33,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:33,039 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:33,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,067 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 [2020-10-20 08:02:33,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:33,102 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 [2020-10-20 08:02:33,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:33,132 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 [2020-10-20 08:02:33,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:02:33,161 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 [2020-10-20 08:02:33,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,189 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 [2020-10-20 08:02:33,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,218 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 [2020-10-20 08:02:33,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,252 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 [2020-10-20 08:02:33,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,292 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 [2020-10-20 08:02:33,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,320 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 [2020-10-20 08:02:33,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,355 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 [2020-10-20 08:02:33,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:02:33,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:02:33,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,383 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 [2020-10-20 08:02:33,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:02:33,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:02:33,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:02:33,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:02:33,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 08:02:33,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:02:33,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:02:33,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:02:33,412 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:02:33,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:02:33,416 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-20 08:02:33,416 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 08:02:33,429 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:02:33,485 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-20 08:02:33,485 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:02:33,492 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 [2020-10-20 08:02:33,498 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-10-20 08:02:33,498 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:02:33,499 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~q_free~0) = 1*~q_free~0 Supporting invariants [1*~q_free~0 >= 0] [2020-10-20 08:02:33,591 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 08:02:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:33,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 08:02:33,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:02:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:33,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 08:02:33,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:02:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:33,774 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 [2020-10-20 08:02:33,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295 Second operand 5 states. [2020-10-20 08:02:33,882 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. [2020-10-20 08:02:33,883 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 [2020-10-20 08:02:33,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 08:02:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2020-10-20 08:02:33,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 3 letters. [2020-10-20 08:02:33,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:02:33,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 36 letters. Loop has 3 letters. [2020-10-20 08:02:33,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:02:33,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 6 letters. [2020-10-20 08:02:33,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:02:33,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1603 transitions. [2020-10-20 08:02:33,900 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1233 [2020-10-20 08:02:33,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 1287 states and 1583 transitions. [2020-10-20 08:02:33,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2020-10-20 08:02:33,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1284 [2020-10-20 08:02:33,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1287 states and 1583 transitions. [2020-10-20 08:02:33,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:02:33,911 INFO L691 BuchiCegarLoop]: Abstraction has 1287 states and 1583 transitions. [2020-10-20 08:02:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states and 1583 transitions. [2020-10-20 08:02:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1271. [2020-10-20 08:02:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-10-20 08:02:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1564 transitions. [2020-10-20 08:02:33,934 INFO L714 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-10-20 08:02:33,934 INFO L594 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2020-10-20 08:02:33,934 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-10-20 08:02:33,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1271 states and 1564 transitions. [2020-10-20 08:02:33,941 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2020-10-20 08:02:33,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:33,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:33,942 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] [2020-10-20 08:02:33,942 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:02:33,943 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 [2020-10-20 08:02:33,943 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 [2020-10-20 08:02:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:33,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1173119927, now seen corresponding path program 1 times [2020-10-20 08:02:33,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:33,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674118351] [2020-10-20 08:02:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:02:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:02:33,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674118351] [2020-10-20 08:02:33,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:02:33,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:02:33,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184606322] [2020-10-20 08:02:33,981 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:02:33,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:33,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 2 times [2020-10-20 08:02:33,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:33,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177622377] [2020-10-20 08:02:33,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:33,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:33,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:33,991 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:34,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:02:34,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:02:34,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:02:34,033 INFO L87 Difference]: Start difference. First operand 1271 states and 1564 transitions. cyclomatic complexity: 298 Second operand 5 states. [2020-10-20 08:02:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:02:34,114 INFO L93 Difference]: Finished difference Result 2343 states and 2843 transitions. [2020-10-20 08:02:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:02:34,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2343 states and 2843 transitions. [2020-10-20 08:02:34,166 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2172 [2020-10-20 08:02:34,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2343 states to 2342 states and 2842 transitions. [2020-10-20 08:02:34,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2337 [2020-10-20 08:02:34,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2337 [2020-10-20 08:02:34,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2342 states and 2842 transitions. [2020-10-20 08:02:34,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:02:34,196 INFO L691 BuchiCegarLoop]: Abstraction has 2342 states and 2842 transitions. [2020-10-20 08:02:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states and 2842 transitions. [2020-10-20 08:02:34,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1697. [2020-10-20 08:02:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2020-10-20 08:02:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2076 transitions. [2020-10-20 08:02:34,235 INFO L714 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-10-20 08:02:34,235 INFO L594 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2020-10-20 08:02:34,235 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-10-20 08:02:34,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1697 states and 2076 transitions. [2020-10-20 08:02:34,241 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1605 [2020-10-20 08:02:34,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:02:34,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:02:34,242 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] [2020-10-20 08:02:34,242 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:02:34,242 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 [2020-10-20 08:02:34,243 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 [2020-10-20 08:02:34,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:34,243 INFO L82 PathProgramCache]: Analyzing trace with hash -266582925, now seen corresponding path program 1 times [2020-10-20 08:02:34,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:34,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820385904] [2020-10-20 08:02:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,267 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:34,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:34,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1172687831, now seen corresponding path program 3 times [2020-10-20 08:02:34,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:34,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282722312] [2020-10-20 08:02:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,276 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:02:34,276 INFO L82 PathProgramCache]: Analyzing trace with hash -799757879, now seen corresponding path program 1 times [2020-10-20 08:02:34,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:02:34,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771577922] [2020-10-20 08:02:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:02:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:02:34,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:02:34,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:02:35,185 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 152 [2020-10-20 08:02:35,367 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-20 08:02:35,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:02:35 BoogieIcfgContainer [2020-10-20 08:02:35,408 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:02:35,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:02:35,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:02:35,409 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:02:35,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:02:25" (3/4) ... [2020-10-20 08:02:35,413 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-20 08:02:35,467 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 08:02:35,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:02:35,470 INFO L168 Benchmark]: Toolchain (without parser) took 11361.12 ms. Allocated memory was 37.2 MB in the beginning and 125.8 MB in the end (delta: 88.6 MB). Free memory was 19.4 MB in the beginning and 41.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,470 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 34.6 MB. Free memory was 11.3 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.23 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.5 MB in the beginning and 24.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 22.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,472 INFO L168 Benchmark]: Boogie Preprocessor took 35.89 ms. Allocated memory is still 45.1 MB. Free memory was 22.3 MB in the beginning and 20.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,472 INFO L168 Benchmark]: RCFGBuilder took 599.81 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 20.3 MB in the beginning and 19.9 MB in the end (delta: 366.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,473 INFO L168 Benchmark]: BuchiAutomizer took 10169.73 ms. Allocated memory was 46.7 MB in the beginning and 125.8 MB in the end (delta: 79.2 MB). Free memory was 19.9 MB in the beginning and 44.2 MB in the end (delta: -24.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,473 INFO L168 Benchmark]: Witness Printer took 58.70 ms. Allocated memory is still 125.8 MB. Free memory was 44.2 MB in the beginning and 41.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:02:35,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 34.6 MB. Free memory was 11.3 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 437.23 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.5 MB in the beginning and 24.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 22.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.89 ms. Allocated memory is still 45.1 MB. Free memory was 22.3 MB in the beginning and 20.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 599.81 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 20.3 MB in the beginning and 19.9 MB in the end (delta: 366.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 10169.73 ms. Allocated memory was 46.7 MB in the beginning and 125.8 MB in the end (delta: 79.2 MB). Free memory was 19.9 MB in the beginning and 44.2 MB in the end (delta: -24.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 14.3 GB. * Witness Printer took 58.70 ms. Allocated memory is still 125.8 MB. Free memory was 44.2 MB in the beginning and 41.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 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 10.0s and 16 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 2. Automata minimization 0.2s 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, 0.4s 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: 88ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - 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=17006} State at position 1 is {p_last_write=11, c_dr_i=1, c_dr_pc=0, NULL=17009, a_t=0, NULL=0, \result=0, NULL=17006, \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=17007, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1df6041f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97b91d7=0, p_dw_pc=1, NULL=0, NULL=0, NULL=0, q_free=0, NULL=17008, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48e0687e=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@4fbbb226=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c698f02=0, tmp=0, q_buf_0=11, p_num_write=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50f6cb20=0, __retres1=0, \result=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@518688a7=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...