./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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_1.5.800.v20200727-1323.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/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.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 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:45:13,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:45:13,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:45:13,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:45:13,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:45:13,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:45:13,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:45:13,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:45:13,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:45:13,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:45:13,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:45:13,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:45:13,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:45:13,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:45:13,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:45:13,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:45:13,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:45:13,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:45:13,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:45:13,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:45:13,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:45:13,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:45:13,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:45:13,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:45:13,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:45:13,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:45:13,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:45:13,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:45:13,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:45:13,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:45:13,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:45:13,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:45:13,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:45:13,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:45:13,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:45:13,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:45:13,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:45:13,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:45:13,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:45:13,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:45:13,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:45:13,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:45:13,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:45:13,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:45:13,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:45:13,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:45:13,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:45:13,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:45:13,185 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:45:13,186 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:45:13,186 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:45:13,186 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:45:13,186 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:45:13,187 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:45:13,187 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:45:13,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:45:13,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:45:13,187 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:45:13,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:45:13,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:45:13,189 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:45:13,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:45:13,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:45:13,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:45:13,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:45:13,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:45:13,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:45:13,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:45:13,190 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:45:13,190 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f [2021-12-21 22:45:13,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:45:13,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:45:13,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:45:13,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:45:13,388 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:45:13,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-12-21 22:45:13,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0b4dda8/6188371ba40e4183a739394a78fdc430/FLAGa9cac016f [2021-12-21 22:45:13,939 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:45:13,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-12-21 22:45:13,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0b4dda8/6188371ba40e4183a739394a78fdc430/FLAGa9cac016f [2021-12-21 22:45:14,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0b4dda8/6188371ba40e4183a739394a78fdc430 [2021-12-21 22:45:14,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:45:14,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:45:14,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:45:14,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:45:14,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:45:14,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7b4b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14, skipping insertion in model container [2021-12-21 22:45:14,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:45:14,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:45:14,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2021-12-21 22:45:14,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:45:14,541 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:45:14,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2021-12-21 22:45:14,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:45:14,608 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:45:14,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14 WrapperNode [2021-12-21 22:45:14,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:45:14,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:45:14,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:45:14,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:45:14,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,674 INFO L137 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 429 [2021-12-21 22:45:14,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:45:14,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:45:14,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:45:14,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:45:14,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:45:14,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:45:14,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:45:14,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:45:14,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (1/1) ... [2021-12-21 22:45:14,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:14,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:14,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:14,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:45:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:45:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:45:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:45:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:45:14,902 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:45:14,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:45:15,249 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:45:15,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:45:15,262 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 22:45:15,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:45:15 BoogieIcfgContainer [2021-12-21 22:45:15,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:45:15,266 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:45:15,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:45:15,269 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:45:15,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:45:15,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:45:14" (1/3) ... [2021-12-21 22:45:15,271 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb9e42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:45:15, skipping insertion in model container [2021-12-21 22:45:15,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:45:15,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:45:14" (2/3) ... [2021-12-21 22:45:15,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb9e42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:45:15, skipping insertion in model container [2021-12-21 22:45:15,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:45:15,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:45:15" (3/3) ... [2021-12-21 22:45:15,273 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-12-21 22:45:15,318 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:45:15,318 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:45:15,318 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:45:15,319 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:45:15,319 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:45:15,319 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:45:15,319 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:45:15,319 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:45:15,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:15,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-12-21 22:45:15,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:45:15,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:45:15,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,368 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,368 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:45:15,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:15,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-12-21 22:45:15,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:45:15,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:45:15,376 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,376 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,381 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 39#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 68#L260true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 78#L260-1true init_#res#1 := init_~tmp~0#1; 4#L461true main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 42#L22true assume !(0 == assume_abort_if_not_~cond#1); 97#L21true assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 73#L545-2true [2021-12-21 22:45:15,382 INFO L793 eck$LassoCheckResult]: Loop: 73#L545-2true assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 37#L85true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 72#L89true assume !(node1_~m1~0#1 != ~nomsg~0); 46#L89-1true ~mode1~0 := 0; 7#L85-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 22#L111true assume !(0 != ~mode2~0 % 256); 79#L124true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 65#L124-2true ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 98#L111-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 21#L136true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 30#L139true assume !(node3_~m3~0#1 != ~nomsg~0); 12#L139-1true ~mode3~0 := 0; 32#L136-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 18#L161true assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 85#L164true assume !(node4_~m4~0#1 != ~nomsg~0); 99#L164-1true ~mode4~0 := 0; 9#L161-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 66#L186true assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 86#L189true assume !(node5_~m5~0#1 != ~nomsg~0); 41#L189-1true ~mode5~0 := 0; 13#L186-2true assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 103#L211true assume !(0 != ~mode6~0 % 256); 77#L224true assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite9#1 := ~send6~0; 100#L224-2true ~p6_new~0 := (if node6_#t~ite9#1 % 256 <= 127 then node6_#t~ite9#1 % 256 else node6_#t~ite9#1 % 256 - 256);havoc node6_#t~ite9#1;~mode6~0 := 1; 84#L211-2true assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 59#L236true assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 29#L239true assume !(node7_~m7~0#1 != ~nomsg~0); 23#L239-1true ~mode7~0 := 0; 57#L236-2true assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 19#L469true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 44#L469-1true check_#res#1 := check_~tmp~1#1; 112#L489true main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 127#L581true assume !(0 == assert_~arg#1 % 256); 87#L576true assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 73#L545-2true [2021-12-21 22:45:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2087378158, now seen corresponding path program 1 times [2021-12-21 22:45:15,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:15,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467167853] [2021-12-21 22:45:15,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:15,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:15,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:45:15,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467167853] [2021-12-21 22:45:15,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467167853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:45:15,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:45:15,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:45:15,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358759373] [2021-12-21 22:45:15,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:45:15,568 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 22:45:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash 149051824, now seen corresponding path program 1 times [2021-12-21 22:45:15,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123198335] [2021-12-21 22:45:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:15,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:15,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:45:15,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123198335] [2021-12-21 22:45:15,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123198335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:45:15,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:45:15,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:45:15,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664930445] [2021-12-21 22:45:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:45:15,717 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:45:15,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:45:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:45:15,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:45:15,740 INFO L87 Difference]: Start difference. First operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:15,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:45:15,863 INFO L93 Difference]: Finished difference Result 130 states and 219 transitions. [2021-12-21 22:45:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:45:15,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 219 transitions. [2021-12-21 22:45:15,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-12-21 22:45:15,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 122 states and 162 transitions. [2021-12-21 22:45:15,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2021-12-21 22:45:15,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 122 [2021-12-21 22:45:15,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 162 transitions. [2021-12-21 22:45:15,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:45:15,889 INFO L681 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-12-21 22:45:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 162 transitions. [2021-12-21 22:45:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-12-21 22:45:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 121 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions. [2021-12-21 22:45:15,922 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-12-21 22:45:15,922 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-12-21 22:45:15,922 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:45:15,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 162 transitions. [2021-12-21 22:45:15,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-12-21 22:45:15,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:45:15,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:45:15,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,930 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:15,930 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 335#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 336#L260 assume 0 == ~r1~0; 369#L261 assume ~id1~0 >= 0; 353#L262 assume 0 == ~st1~0; 354#L263 assume ~send1~0 == ~id1~0; 359#L264 assume 0 == ~mode1~0 % 256; 360#L265 assume ~id2~0 >= 0; 299#L266 assume 0 == ~st2~0; 300#L267 assume ~send2~0 == ~id2~0; 316#L268 assume 0 == ~mode2~0 % 256; 317#L269 assume ~id3~0 >= 0; 295#L270 assume 0 == ~st3~0; 296#L271 assume ~send3~0 == ~id3~0; 326#L272 assume 0 == ~mode3~0 % 256; 341#L273 assume ~id4~0 >= 0; 357#L274 assume 0 == ~st4~0; 384#L275 assume ~send4~0 == ~id4~0; 275#L276 assume 0 == ~mode4~0 % 256; 276#L277 assume ~id5~0 >= 0; 396#L278 assume 0 == ~st5~0; 347#L279 assume ~send5~0 == ~id5~0; 348#L280 assume 0 == ~mode5~0 % 256; 308#L281 assume ~id6~0 >= 0; 279#L282 assume 0 == ~st6~0; 280#L283 assume ~send6~0 == ~id6~0; 361#L284 assume 0 == ~mode6~0 % 256; 362#L285 assume ~id7~0 >= 0; 382#L286 assume 0 == ~st7~0; 368#L287 assume ~send7~0 == ~id7~0; 321#L288 assume 0 == ~mode7~0 % 256; 322#L289 assume ~id1~0 != ~id2~0; 328#L290 assume ~id1~0 != ~id3~0; 374#L291 assume ~id1~0 != ~id4~0; 375#L292 assume ~id1~0 != ~id5~0; 385#L293 assume ~id1~0 != ~id6~0; 392#L294 assume ~id1~0 != ~id7~0; 287#L295 assume ~id2~0 != ~id3~0; 288#L296 assume ~id2~0 != ~id4~0; 327#L297 assume ~id2~0 != ~id5~0; 324#L298 assume ~id2~0 != ~id6~0; 325#L299 assume ~id2~0 != ~id7~0; 334#L300 assume ~id3~0 != ~id4~0; 370#L301 assume ~id3~0 != ~id5~0; 380#L302 assume ~id3~0 != ~id6~0; 381#L303 assume ~id3~0 != ~id7~0; 387#L304 assume ~id4~0 != ~id5~0; 363#L305 assume ~id4~0 != ~id6~0; 364#L306 assume ~id4~0 != ~id7~0; 373#L307 assume ~id5~0 != ~id6~0; 297#L308 assume ~id5~0 != ~id7~0; 298#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 378#L260-1 init_#res#1 := init_~tmp~0#1; 277#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 278#L22 assume !(0 == assume_abort_if_not_~cond#1); 340#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 372#L545-2 [2021-12-21 22:45:15,931 INFO L793 eck$LassoCheckResult]: Loop: 372#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 331#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 332#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 330#L89-1 ~mode1~0 := 0; 281#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 282#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 314#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 345#L114-1 ~mode2~0 := 0; 366#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 309#L136 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 310#L139 assume !(node3_~m3~0#1 != ~nomsg~0); 291#L139-1 ~mode3~0 := 0; 292#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 302#L161 assume !(0 != ~mode4~0 % 256); 304#L174 assume !(~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0);node4_#t~ite7#1 := ~p4_new~0; 391#L174-2 ~p4_new~0 := (if node4_#t~ite7#1 % 256 <= 127 then node4_#t~ite7#1 % 256 else node4_#t~ite7#1 % 256 - 256);havoc node4_#t~ite7#1;~mode4~0 := 1; 283#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 284#L186 assume !(0 != ~mode5~0 % 256); 343#L199 assume !(~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0);node5_#t~ite8#1 := ~p5_new~0; 344#L199-2 ~p5_new~0 := (if node5_#t~ite8#1 % 256 <= 127 then node5_#t~ite8#1 % 256 else node5_#t~ite8#1 % 256 - 256);havoc node5_#t~ite8#1;~mode5~0 := 1; 293#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 294#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 388#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 338#L214-1 ~mode6~0 := 0; 379#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 356#L236 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 320#L239 assume !(node7_~m7~0#1 != ~nomsg~0); 312#L239-1 ~mode7~0 := 0; 313#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 305#L469 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 306#L469-1 check_#res#1 := check_~tmp~1#1; 342#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 393#L581 assume !(0 == assert_~arg#1 % 256); 383#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 372#L545-2 [2021-12-21 22:45:15,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:15,931 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 1 times [2021-12-21 22:45:15,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:15,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856631474] [2021-12-21 22:45:15,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:15,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:15,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:45:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:15,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:45:15,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash -525374164, now seen corresponding path program 1 times [2021-12-21 22:45:15,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:15,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912894411] [2021-12-21 22:45:15,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:15,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:16,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:45:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912894411] [2021-12-21 22:45:16,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912894411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:45:16,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:45:16,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:45:16,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601691801] [2021-12-21 22:45:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:45:16,116 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:45:16,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:45:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:45:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:45:16,118 INFO L87 Difference]: Start difference. First operand 122 states and 162 transitions. cyclomatic complexity: 41 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:45:16,159 INFO L93 Difference]: Finished difference Result 125 states and 164 transitions. [2021-12-21 22:45:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:45:16,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 164 transitions. [2021-12-21 22:45:16,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-12-21 22:45:16,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 122 states and 159 transitions. [2021-12-21 22:45:16,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2021-12-21 22:45:16,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 122 [2021-12-21 22:45:16,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 159 transitions. [2021-12-21 22:45:16,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:45:16,170 INFO L681 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-12-21 22:45:16,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 159 transitions. [2021-12-21 22:45:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-12-21 22:45:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 121 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2021-12-21 22:45:16,180 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-12-21 22:45:16,181 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-12-21 22:45:16,181 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:45:16,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 159 transitions. [2021-12-21 22:45:16,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-12-21 22:45:16,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:45:16,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:45:16,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:16,187 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:16,187 INFO L791 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 593#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 594#L260 assume 0 == ~r1~0; 628#L261 assume ~id1~0 >= 0; 612#L262 assume 0 == ~st1~0; 613#L263 assume ~send1~0 == ~id1~0; 618#L264 assume 0 == ~mode1~0 % 256; 619#L265 assume ~id2~0 >= 0; 558#L266 assume 0 == ~st2~0; 559#L267 assume ~send2~0 == ~id2~0; 574#L268 assume 0 == ~mode2~0 % 256; 575#L269 assume ~id3~0 >= 0; 554#L270 assume 0 == ~st3~0; 555#L271 assume ~send3~0 == ~id3~0; 584#L272 assume 0 == ~mode3~0 % 256; 599#L273 assume ~id4~0 >= 0; 615#L274 assume 0 == ~st4~0; 643#L275 assume ~send4~0 == ~id4~0; 534#L276 assume 0 == ~mode4~0 % 256; 535#L277 assume ~id5~0 >= 0; 655#L278 assume 0 == ~st5~0; 606#L279 assume ~send5~0 == ~id5~0; 607#L280 assume 0 == ~mode5~0 % 256; 566#L281 assume ~id6~0 >= 0; 538#L282 assume 0 == ~st6~0; 539#L283 assume ~send6~0 == ~id6~0; 620#L284 assume 0 == ~mode6~0 % 256; 621#L285 assume ~id7~0 >= 0; 641#L286 assume 0 == ~st7~0; 627#L287 assume ~send7~0 == ~id7~0; 578#L288 assume 0 == ~mode7~0 % 256; 579#L289 assume ~id1~0 != ~id2~0; 586#L290 assume ~id1~0 != ~id3~0; 633#L291 assume ~id1~0 != ~id4~0; 634#L292 assume ~id1~0 != ~id5~0; 644#L293 assume ~id1~0 != ~id6~0; 651#L294 assume ~id1~0 != ~id7~0; 546#L295 assume ~id2~0 != ~id3~0; 547#L296 assume ~id2~0 != ~id4~0; 585#L297 assume ~id2~0 != ~id5~0; 582#L298 assume ~id2~0 != ~id6~0; 583#L299 assume ~id2~0 != ~id7~0; 592#L300 assume ~id3~0 != ~id4~0; 629#L301 assume ~id3~0 != ~id5~0; 639#L302 assume ~id3~0 != ~id6~0; 640#L303 assume ~id3~0 != ~id7~0; 646#L304 assume ~id4~0 != ~id5~0; 622#L305 assume ~id4~0 != ~id6~0; 623#L306 assume ~id4~0 != ~id7~0; 632#L307 assume ~id5~0 != ~id6~0; 556#L308 assume ~id5~0 != ~id7~0; 557#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 637#L260-1 init_#res#1 := init_~tmp~0#1; 536#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 537#L22 assume !(0 == assume_abort_if_not_~cond#1); 598#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 631#L545-2 [2021-12-21 22:45:16,187 INFO L793 eck$LassoCheckResult]: Loop: 631#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 589#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 590#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 588#L89-1 ~mode1~0 := 0; 540#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 541#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 572#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 604#L114-1 ~mode2~0 := 0; 625#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 567#L136 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 568#L139 assume !(node3_~m3~0#1 != ~nomsg~0); 550#L139-1 ~mode3~0 := 0; 551#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 561#L161 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 562#L164 assume !(node4_~m4~0#1 != ~nomsg~0); 545#L164-1 ~mode4~0 := 0; 542#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 543#L186 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 626#L189 assume !(node5_~m5~0#1 != ~nomsg~0); 597#L189-1 ~mode5~0 := 0; 552#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 553#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 647#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 596#L214-1 ~mode6~0 := 0; 638#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 616#L236 assume !(0 != ~mode7~0 % 256); 548#L249 assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite10#1 := ~send7~0; 549#L249-2 ~p7_new~0 := (if node7_#t~ite10#1 % 256 <= 127 then node7_#t~ite10#1 % 256 else node7_#t~ite10#1 % 256 - 256);havoc node7_#t~ite10#1;~mode7~0 := 1; 571#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 564#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 565#L470 assume ~r1~0 >= 7; 608#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 600#L469-1 check_#res#1 := check_~tmp~1#1; 601#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 652#L581 assume !(0 == assert_~arg#1 % 256); 642#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 631#L545-2 [2021-12-21 22:45:16,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 2 times [2021-12-21 22:45:16,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:16,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689196755] [2021-12-21 22:45:16,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:16,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:45:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:45:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash -602955094, now seen corresponding path program 1 times [2021-12-21 22:45:16,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:16,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160780152] [2021-12-21 22:45:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:16,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:16,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:45:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160780152] [2021-12-21 22:45:16,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160780152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:45:16,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:45:16,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:45:16,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141271083] [2021-12-21 22:45:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:45:16,316 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:45:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:45:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:45:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:45:16,318 INFO L87 Difference]: Start difference. First operand 122 states and 159 transitions. cyclomatic complexity: 38 Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:45:16,334 INFO L93 Difference]: Finished difference Result 182 states and 251 transitions. [2021-12-21 22:45:16,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:45:16,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 251 transitions. [2021-12-21 22:45:16,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 126 [2021-12-21 22:45:16,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 251 transitions. [2021-12-21 22:45:16,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-12-21 22:45:16,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-12-21 22:45:16,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 251 transitions. [2021-12-21 22:45:16,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:45:16,339 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-12-21 22:45:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 251 transitions. [2021-12-21 22:45:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-12-21 22:45:16,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.379120879120879) internal successors, (251), 181 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2021-12-21 22:45:16,344 INFO L704 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-12-21 22:45:16,344 INFO L587 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-12-21 22:45:16,344 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:45:16,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 251 transitions. [2021-12-21 22:45:16,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 126 [2021-12-21 22:45:16,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:45:16,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:45:16,346 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:16,346 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:45:16,346 INFO L791 eck$LassoCheckResult]: Stem: 964#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 903#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 904#L260 assume 0 == ~r1~0; 939#L261 assume ~id1~0 >= 0; 924#L262 assume 0 == ~st1~0; 925#L263 assume ~send1~0 == ~id1~0; 929#L264 assume 0 == ~mode1~0 % 256; 930#L265 assume ~id2~0 >= 0; 869#L266 assume 0 == ~st2~0; 870#L267 assume ~send2~0 == ~id2~0; 884#L268 assume 0 == ~mode2~0 % 256; 885#L269 assume ~id3~0 >= 0; 864#L270 assume 0 == ~st3~0; 865#L271 assume ~send3~0 == ~id3~0; 894#L272 assume 0 == ~mode3~0 % 256; 909#L273 assume ~id4~0 >= 0; 927#L274 assume 0 == ~st4~0; 954#L275 assume ~send4~0 == ~id4~0; 844#L276 assume 0 == ~mode4~0 % 256; 845#L277 assume ~id5~0 >= 0; 970#L278 assume 0 == ~st5~0; 917#L279 assume ~send5~0 == ~id5~0; 918#L280 assume 0 == ~mode5~0 % 256; 876#L281 assume ~id6~0 >= 0; 848#L282 assume 0 == ~st6~0; 849#L283 assume ~send6~0 == ~id6~0; 931#L284 assume 0 == ~mode6~0 % 256; 932#L285 assume ~id7~0 >= 0; 952#L286 assume 0 == ~st7~0; 938#L287 assume ~send7~0 == ~id7~0; 889#L288 assume 0 == ~mode7~0 % 256; 890#L289 assume ~id1~0 != ~id2~0; 896#L290 assume ~id1~0 != ~id3~0; 944#L291 assume ~id1~0 != ~id4~0; 945#L292 assume ~id1~0 != ~id5~0; 955#L293 assume ~id1~0 != ~id6~0; 962#L294 assume ~id1~0 != ~id7~0; 856#L295 assume ~id2~0 != ~id3~0; 857#L296 assume ~id2~0 != ~id4~0; 895#L297 assume ~id2~0 != ~id5~0; 892#L298 assume ~id2~0 != ~id6~0; 893#L299 assume ~id2~0 != ~id7~0; 902#L300 assume ~id3~0 != ~id4~0; 940#L301 assume ~id3~0 != ~id5~0; 950#L302 assume ~id3~0 != ~id6~0; 951#L303 assume ~id3~0 != ~id7~0; 958#L304 assume ~id4~0 != ~id5~0; 933#L305 assume ~id4~0 != ~id6~0; 934#L306 assume ~id4~0 != ~id7~0; 943#L307 assume ~id5~0 != ~id6~0; 866#L308 assume ~id5~0 != ~id7~0; 867#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 948#L260-1 init_#res#1 := init_~tmp~0#1; 846#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 847#L22 assume !(0 == assume_abort_if_not_~cond#1); 908#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 957#L545-2 [2021-12-21 22:45:16,347 INFO L793 eck$LassoCheckResult]: Loop: 957#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 1021#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 900#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 898#L89-1 ~mode1~0 := 0; 912#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 1018#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 1015#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 1013#L114-1 ~mode2~0 := 0; 1011#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 1010#L136 assume !(0 != ~mode3~0 % 256); 1009#L149 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite6#1 := ~send3~0; 1004#L149-2 ~p3_new~0 := (if node3_#t~ite6#1 % 256 <= 127 then node3_#t~ite6#1 % 256 else node3_#t~ite6#1 % 256 - 256);havoc node3_#t~ite6#1;~mode3~0 := 1; 1003#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 1002#L161 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 1000#L164 assume !(node4_~m4~0#1 != ~nomsg~0); 998#L164-1 ~mode4~0 := 0; 997#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 996#L186 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 993#L189 assume !(node5_~m5~0#1 != ~nomsg~0); 991#L189-1 ~mode5~0 := 0; 989#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 988#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 985#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 983#L214-1 ~mode6~0 := 0; 981#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 980#L236 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 978#L239 assume !(node7_~m7~0#1 != ~nomsg~0); 975#L239-1 ~mode7~0 := 0; 973#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 972#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 971#L470 assume !(~r1~0 >= 7); 965#L473 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0; 966#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 1025#L469-1 check_#res#1 := check_~tmp~1#1; 1024#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 1023#L581 assume !(0 == assert_~arg#1 % 256); 1022#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 957#L545-2 [2021-12-21 22:45:16,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 3 times [2021-12-21 22:45:16,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542451703] [2021-12-21 22:45:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:16,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,360 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:45:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,378 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:45:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:16,379 INFO L85 PathProgramCache]: Analyzing trace with hash 931303707, now seen corresponding path program 1 times [2021-12-21 22:45:16,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:16,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353710775] [2021-12-21 22:45:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:16,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:45:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:45:16,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:45:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash -721431126, now seen corresponding path program 1 times [2021-12-21 22:45:16,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:45:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731114083] [2021-12-21 22:45:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:45:16,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:45:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:16,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:45:16,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731114083] [2021-12-21 22:45:16,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731114083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:45:16,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:45:16,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:45:16,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170121781] [2021-12-21 22:45:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:45:17,676 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:45:17,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:45:17,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:45:17,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:45:17,677 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 22:45:17,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:17,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:45:17,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:45:17,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.BOUNDED-14.pals.c_Iteration4_Loop [2021-12-21 22:45:17,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:45:17,678 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:45:17,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:17,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:45:20,120 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 22:45:20,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:20,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:20,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:20,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-21 22:45:20,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 22:45:20,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:45:20,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-21 22:45:20,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:20,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:20,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:20,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-21 22:45:20,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 22:45:20,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:45:20,302 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 22:45:20,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:20,307 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:45:20,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:45:20,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:45:20,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:45:20,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:45:20,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:20,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:45:20,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:45:20,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.BOUNDED-14.pals.c_Iteration4_Loop [2021-12-21 22:45:20,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:45:20,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:45:20,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:20,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:45:22,998 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:45:23,002 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:45:23,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-21 22:45:23,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-21 22:45:23,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-21 22:45:23,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-21 22:45:23,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,237 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-21 22:45:23,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,239 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-21 22:45:23,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-21 22:45:23,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,346 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-21 22:45:23,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-21 22:45:23,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,454 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-21 22:45:23,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,492 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-21 22:45:23,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-21 22:45:23,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,533 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-21 22:45:23,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,574 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,597 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-12-21 22:45:23,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-21 22:45:23,633 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-12-21 22:45:23,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,691 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-21 22:45:23,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,776 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-21 22:45:23,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,833 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-21 22:45:23,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:45:23,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,899 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:45:23,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:45:23,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:45:23,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:45:23,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:45:23,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:45:23,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:45:23,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:45:23,912 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:45:23,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-21 22:45:23,916 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-21 22:45:23,916 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-21 22:45:23,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:45:23,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:45:23,942 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:45:23,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-21 22:45:23,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:45:23,968 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 22:45:23,968 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:45:23,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 27 Supporting invariants [] [2021-12-21 22:45:23,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-21 22:45:23,990 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 22:45:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:45:24,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-21 22:45:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:24,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:45:24,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:45:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:45:24,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 22:45:24,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:45:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:45:24,429 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:45:24,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 182 states and 251 transitions. cyclomatic complexity: 70 Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:24,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 182 states and 251 transitions. cyclomatic complexity: 70. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 307 states and 446 transitions. Complement of second has 4 states. [2021-12-21 22:45:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 22:45:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2021-12-21 22:45:24,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 56 letters. Loop has 37 letters. [2021-12-21 22:45:24,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:45:24,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 93 letters. Loop has 37 letters. [2021-12-21 22:45:24,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:45:24,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 56 letters. Loop has 74 letters. [2021-12-21 22:45:24,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:45:24,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 446 transitions. [2021-12-21 22:45:24,484 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:45:24,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 0 states and 0 transitions. [2021-12-21 22:45:24,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:45:24,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:45:24,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:45:24,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:45:24,485 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:45:24,485 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:45:24,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:45:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:45:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:45:24,486 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:45:24,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:45:24,486 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-21 22:45:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 22:45:24,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:45:24,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:45:24,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:45:24,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:45:24,487 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 22:45:24,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:45:24,487 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:45:24,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:45:24,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:45:24 BoogieIcfgContainer [2021-12-21 22:45:24,492 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:45:24,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:45:24,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:45:24,493 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:45:24,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:45:15" (3/4) ... [2021-12-21 22:45:24,495 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:45:24,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:45:24,496 INFO L158 Benchmark]: Toolchain (without parser) took 10188.78ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 109.1MB in the beginning and 126.4MB in the end (delta: -17.3MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,496 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:45:24,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.46ms. Allocated memory is still 134.2MB. Free memory was 109.1MB in the beginning and 102.3MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.66ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,497 INFO L158 Benchmark]: Boogie Preprocessor took 50.01ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 97.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,497 INFO L158 Benchmark]: RCFGBuilder took 534.03ms. Allocated memory is still 134.2MB. Free memory was 97.3MB in the beginning and 72.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,497 INFO L158 Benchmark]: BuchiAutomizer took 9225.66ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 72.9MB in the beginning and 126.4MB in the end (delta: -53.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-12-21 22:45:24,497 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:45:24,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.46ms. Allocated memory is still 134.2MB. Free memory was 109.1MB in the beginning and 102.3MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.66ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.01ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 97.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.03ms. Allocated memory is still 134.2MB. Free memory was 97.3MB in the beginning and 72.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 9225.66ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 72.9MB in the beginning and 126.4MB in the end (delta: -53.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 27 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 8.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 182 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 2095 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1316 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 779 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital237 mio100 ax100 hnf100 lsp52 ukn89 mio100 lsp100 div127 bol100 ite100 ukn100 eq196 hnf89 smp86 dnf548 smp65 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 82ms VariablesStem: 0 VariablesLoop: 38 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:45:24,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE