./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abf77f97875b3c7e87b90b0cc41c08fea68d8fc2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:36:30,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:36:30,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:36:30,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:36:30,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:36:30,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:36:30,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:36:30,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:36:30,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:36:30,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:36:30,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:36:30,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:36:30,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:36:30,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:36:30,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:36:30,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:36:30,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:36:30,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:36:30,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:36:30,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:36:30,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:36:30,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:36:30,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:36:30,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:36:30,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:36:30,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:36:30,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:36:30,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:36:30,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:36:30,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:36:30,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:36:30,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:36:30,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:36:30,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:36:30,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:36:30,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:36:30,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:36:30,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:36:30,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:36:30,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:36:30,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:36:30,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 11:36:30,969 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:36:30,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:36:30,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:36:30,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:36:30,971 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:36:30,971 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:36:30,971 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:36:30,971 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:36:30,972 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:36:30,972 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:36:30,972 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:36:30,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:36:30,972 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:36:30,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:36:30,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:36:30,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:36:30,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:36:30,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:36:30,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:36:30,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:36:30,974 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:36:30,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:36:30,974 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:36:30,975 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:36:30,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:36:30,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:36:30,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:36:30,975 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:36:30,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:36:30,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:36:30,976 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:36:30,988 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:36:30,988 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abf77f97875b3c7e87b90b0cc41c08fea68d8fc2 [2019-11-20 11:36:31,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:36:31,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:36:31,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:36:31,167 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:36:31,167 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:36:31,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2019-11-20 11:36:31,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/data/aa835831e/c1549ced6f834d0a8f5001d25f037fcf/FLAG56a488cac [2019-11-20 11:36:31,632 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:36:31,633 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2019-11-20 11:36:31,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/data/aa835831e/c1549ced6f834d0a8f5001d25f037fcf/FLAG56a488cac [2019-11-20 11:36:31,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/data/aa835831e/c1549ced6f834d0a8f5001d25f037fcf [2019-11-20 11:36:31,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:36:31,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:36:31,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:36:31,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:36:31,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:36:31,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:31" (1/1) ... [2019-11-20 11:36:31,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3d6fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:31, skipping insertion in model container [2019-11-20 11:36:31,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:31" (1/1) ... [2019-11-20 11:36:31,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:36:31,727 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:36:32,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:36:32,117 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:36:32,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:36:32,190 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:36:32,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32 WrapperNode [2019-11-20 11:36:32,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:36:32,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:36:32,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:36:32,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:36:32,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:36:32,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:36:32,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:36:32,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:36:32,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... [2019-11-20 11:36:32,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:36:32,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:36:32,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:36:32,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:36:32,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:36:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:36:33,121 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:36:33,122 INFO L285 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-20 11:36:33,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:33 BoogieIcfgContainer [2019-11-20 11:36:33,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:36:33,124 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:36:33,124 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:36:33,128 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:36:33,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:36:33,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:36:31" (1/3) ... [2019-11-20 11:36:33,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1daef8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:36:33, skipping insertion in model container [2019-11-20 11:36:33,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:36:33,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:32" (2/3) ... [2019-11-20 11:36:33,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1daef8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:36:33, skipping insertion in model container [2019-11-20 11:36:33,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:36:33,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:33" (3/3) ... [2019-11-20 11:36:33,134 INFO L371 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2019-11-20 11:36:33,182 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:36:33,182 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:36:33,183 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:36:33,183 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:36:33,183 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:36:33,183 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:36:33,183 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:36:33,183 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:36:33,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states. [2019-11-20 11:36:33,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2019-11-20 11:36:33,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:36:33,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:36:33,238 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 11:36:33,238 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:33,238 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:36:33,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states. [2019-11-20 11:36:33,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2019-11-20 11:36:33,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:36:33,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:36:33,246 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 11:36:33,246 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:33,256 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRYtrue ~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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 14#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~ret22, main_#t~ret23, main_#t~post24, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet6;havoc main_#t~nondet6;~id1~0 := main_#t~nondet7;havoc main_#t~nondet7;~st1~0 := main_#t~nondet8;havoc main_#t~nondet8;~send1~0 := main_#t~nondet9;havoc main_#t~nondet9;~mode1~0 := main_#t~nondet10;havoc main_#t~nondet10;~alive1~0 := main_#t~nondet11;havoc main_#t~nondet11;~id2~0 := main_#t~nondet12;havoc main_#t~nondet12;~st2~0 := main_#t~nondet13;havoc main_#t~nondet13;~send2~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode2~0 := main_#t~nondet15;havoc main_#t~nondet15;~alive2~0 := main_#t~nondet16;havoc main_#t~nondet16;~id3~0 := main_#t~nondet17;havoc main_#t~nondet17;~st3~0 := main_#t~nondet18;havoc main_#t~nondet18;~send3~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode3~0 := main_#t~nondet20;havoc main_#t~nondet20;~alive3~0 := main_#t~nondet21;havoc main_#t~nondet21;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 61#L207true assume !(0 == ~r1~0);init_~tmp~0 := 0; 76#L207-1true init_#res := init_~tmp~0; 52#L276true main_#t~ret22 := init_#res;main_~i2~0 := main_#t~ret22;havoc main_#t~ret22;assume 0 != main_~i2~0;~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;main_~i2~0 := 0; 54#L331-2true [2019-11-20 11:36:33,257 INFO L796 eck$LassoCheckResult]: Loop: 54#L331-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 6#L102true 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 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 36#L106true assume !(node1_~m1~0 != ~nomsg~0); 11#L106-1true ~mode1~0 := 0; 24#L102-2true havoc node2_#t~ite2, node2_#t~ite3, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 39#L139true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 23#L142true assume !(node2_~m2~0 != ~nomsg~0); 21#L142-1true ~mode2~0 := 0; 12#L139-2true havoc node3_#t~ite4, node3_#t~ite5, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 59#L173true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 27#L176true assume !(node3_~m3~0 != ~nomsg~0); 26#L176-1true ~mode3~0 := 0; 58#L173-2true ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 66#L284true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 64#L284-1true check_#res := check_~tmp~1; 9#L296true main_#t~ret23 := check_#res;main_~c1~0 := main_#t~ret23;havoc main_#t~ret23;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 28#L355true assume !(0 == assert_~arg % 256); 73#L350true main_#t~post24 := main_~i2~0;main_~i2~0 := 1 + main_#t~post24;havoc main_#t~post24; 54#L331-2true [2019-11-20 11:36:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash 28791078, now seen corresponding path program 1 times [2019-11-20 11:36:33,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:33,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255413267] [2019-11-20 11:36:33,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:36:33,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255413267] [2019-11-20 11:36:33,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:36:33,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:36:33,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195915564] [2019-11-20 11:36:33,471 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 11:36:33,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:33,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1766040228, now seen corresponding path program 1 times [2019-11-20 11:36:33,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:33,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251478747] [2019-11-20 11:36:33,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:36:33,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251478747] [2019-11-20 11:36:33,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:36:33,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 11:36:33,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988117740] [2019-11-20 11:36:33,667 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 11:36:33,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:36:33,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:36:33,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:36:33,682 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2019-11-20 11:36:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:36:33,779 INFO L93 Difference]: Finished difference Result 78 states and 124 transitions. [2019-11-20 11:36:33,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:36:33,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 124 transitions. [2019-11-20 11:36:33,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2019-11-20 11:36:33,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 101 transitions. [2019-11-20 11:36:33,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-20 11:36:33,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-20 11:36:33,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 101 transitions. [2019-11-20 11:36:33,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:36:33,812 INFO L688 BuchiCegarLoop]: Abstraction has 71 states and 101 transitions. [2019-11-20 11:36:33,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 101 transitions. [2019-11-20 11:36:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-20 11:36:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-20 11:36:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2019-11-20 11:36:33,859 INFO L711 BuchiCegarLoop]: Abstraction has 71 states and 101 transitions. [2019-11-20 11:36:33,859 INFO L591 BuchiCegarLoop]: Abstraction has 71 states and 101 transitions. [2019-11-20 11:36:33,860 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:36:33,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 101 transitions. [2019-11-20 11:36:33,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2019-11-20 11:36:33,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:36:33,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:36:33,870 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:33,871 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:33,871 INFO L794 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY ~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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 195#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~ret22, main_#t~ret23, main_#t~post24, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet6;havoc main_#t~nondet6;~id1~0 := main_#t~nondet7;havoc main_#t~nondet7;~st1~0 := main_#t~nondet8;havoc main_#t~nondet8;~send1~0 := main_#t~nondet9;havoc main_#t~nondet9;~mode1~0 := main_#t~nondet10;havoc main_#t~nondet10;~alive1~0 := main_#t~nondet11;havoc main_#t~nondet11;~id2~0 := main_#t~nondet12;havoc main_#t~nondet12;~st2~0 := main_#t~nondet13;havoc main_#t~nondet13;~send2~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode2~0 := main_#t~nondet15;havoc main_#t~nondet15;~alive2~0 := main_#t~nondet16;havoc main_#t~nondet16;~id3~0 := main_#t~nondet17;havoc main_#t~nondet17;~st3~0 := main_#t~nondet18;havoc main_#t~nondet18;~send3~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode3~0 := main_#t~nondet20;havoc main_#t~nondet20;~alive3~0 := main_#t~nondet21;havoc main_#t~nondet21;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 196#L207 assume 0 == ~r1~0; 169#L208 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 >= 1; 170#L209 assume ~id1~0 >= 0; 212#L210 assume 0 == ~st1~0; 229#L211 assume ~send1~0 == ~id1~0; 191#L212 assume 0 == ~mode1~0 % 256; 192#L213 assume ~id2~0 >= 0; 233#L214 assume 0 == ~st2~0; 200#L215 assume ~send2~0 == ~id2~0; 201#L216 assume 0 == ~mode2~0 % 256; 224#L217 assume ~id3~0 >= 0; 236#L218 assume 0 == ~st3~0; 173#L219 assume ~send3~0 == ~id3~0; 174#L220 assume 0 == ~mode3~0 % 256; 213#L221 assume ~id1~0 != ~id2~0; 230#L222 assume ~id1~0 != ~id3~0; 218#L223 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 219#L207-1 init_#res := init_~tmp~0; 231#L276 main_#t~ret22 := init_#res;main_~i2~0 := main_#t~ret22;havoc main_#t~ret22;assume 0 != main_~i2~0;~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;main_~i2~0 := 0; 232#L331-2 [2019-11-20 11:36:33,871 INFO L796 eck$LassoCheckResult]: Loop: 232#L331-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 175#L102 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 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 177#L106 assume !(node1_~m1~0 != ~nomsg~0); 189#L106-1 ~mode1~0 := 0; 190#L102-2 havoc node2_#t~ite2, node2_#t~ite3, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 205#L139 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 203#L142 assume !(node2_~m2~0 != ~nomsg~0); 202#L142-1 ~mode2~0 := 0; 187#L139-2 havoc node3_#t~ite4, node3_#t~ite5, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 188#L173 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 208#L176 assume !(node3_~m3~0 != ~nomsg~0); 207#L176-1 ~mode3~0 := 0; 194#L173-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 234#L284 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 180#L284-1 check_#res := check_~tmp~1; 182#L296 main_#t~ret23 := check_#res;main_~c1~0 := main_#t~ret23;havoc main_#t~ret23;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 183#L355 assume !(0 == assert_~arg % 256); 210#L350 main_#t~post24 := main_~i2~0;main_~i2~0 := 1 + main_#t~post24;havoc main_#t~post24; 232#L331-2 [2019-11-20 11:36:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:33,872 INFO L82 PathProgramCache]: Analyzing trace with hash -47575204, now seen corresponding path program 1 times [2019-11-20 11:36:33,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:33,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020342421] [2019-11-20 11:36:33,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:34,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:36:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:34,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1766040228, now seen corresponding path program 2 times [2019-11-20 11:36:34,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:34,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261578745] [2019-11-20 11:36:34,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:36:34,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261578745] [2019-11-20 11:36:34,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:36:34,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 11:36:34,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202887325] [2019-11-20 11:36:34,119 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 11:36:34,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:36:34,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:36:34,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:36:34,120 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. cyclomatic complexity: 31 Second operand 5 states. [2019-11-20 11:36:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:36:34,196 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2019-11-20 11:36:34,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:36:34,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 103 transitions. [2019-11-20 11:36:34,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2019-11-20 11:36:34,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 71 states and 99 transitions. [2019-11-20 11:36:34,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-20 11:36:34,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-20 11:36:34,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2019-11-20 11:36:34,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:36:34,203 INFO L688 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-11-20 11:36:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2019-11-20 11:36:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-20 11:36:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-20 11:36:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2019-11-20 11:36:34,209 INFO L711 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-11-20 11:36:34,209 INFO L591 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-11-20 11:36:34,209 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 11:36:34,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2019-11-20 11:36:34,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2019-11-20 11:36:34,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:36:34,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:36:34,212 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:34,212 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:36:34,212 INFO L794 eck$LassoCheckResult]: Stem: 379#ULTIMATE.startENTRY ~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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 352#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~ret22, main_#t~ret23, main_#t~post24, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet6;havoc main_#t~nondet6;~id1~0 := main_#t~nondet7;havoc main_#t~nondet7;~st1~0 := main_#t~nondet8;havoc main_#t~nondet8;~send1~0 := main_#t~nondet9;havoc main_#t~nondet9;~mode1~0 := main_#t~nondet10;havoc main_#t~nondet10;~alive1~0 := main_#t~nondet11;havoc main_#t~nondet11;~id2~0 := main_#t~nondet12;havoc main_#t~nondet12;~st2~0 := main_#t~nondet13;havoc main_#t~nondet13;~send2~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode2~0 := main_#t~nondet15;havoc main_#t~nondet15;~alive2~0 := main_#t~nondet16;havoc main_#t~nondet16;~id3~0 := main_#t~nondet17;havoc main_#t~nondet17;~st3~0 := main_#t~nondet18;havoc main_#t~nondet18;~send3~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode3~0 := main_#t~nondet20;havoc main_#t~nondet20;~alive3~0 := main_#t~nondet21;havoc main_#t~nondet21;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 353#L207 assume 0 == ~r1~0; 326#L208 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 >= 1; 327#L209 assume ~id1~0 >= 0; 369#L210 assume 0 == ~st1~0; 386#L211 assume ~send1~0 == ~id1~0; 348#L212 assume 0 == ~mode1~0 % 256; 349#L213 assume ~id2~0 >= 0; 390#L214 assume 0 == ~st2~0; 357#L215 assume ~send2~0 == ~id2~0; 358#L216 assume 0 == ~mode2~0 % 256; 381#L217 assume ~id3~0 >= 0; 393#L218 assume 0 == ~st3~0; 328#L219 assume ~send3~0 == ~id3~0; 329#L220 assume 0 == ~mode3~0 % 256; 370#L221 assume ~id1~0 != ~id2~0; 387#L222 assume ~id1~0 != ~id3~0; 375#L223 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 376#L207-1 init_#res := init_~tmp~0; 388#L276 main_#t~ret22 := init_#res;main_~i2~0 := main_#t~ret22;havoc main_#t~ret22;assume 0 != main_~i2~0;~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;main_~i2~0 := 0; 389#L331-2 [2019-11-20 11:36:34,212 INFO L796 eck$LassoCheckResult]: Loop: 389#L331-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 332#L102 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 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 334#L106 assume !(node1_~m1~0 != ~nomsg~0); 344#L106-1 ~mode1~0 := 0; 345#L102-2 havoc node2_#t~ite2, node2_#t~ite3, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 362#L139 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 360#L142 assume !(node2_~m2~0 != ~nomsg~0); 359#L142-1 ~mode2~0 := 0; 346#L139-2 havoc node3_#t~ite4, node3_#t~ite5, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 347#L173 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 365#L176 assume !(node3_~m3~0 != ~nomsg~0); 364#L176-1 ~mode3~0 := 0; 351#L173-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 392#L284 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 336#L285 assume ~r1~0 < 3;check_~tmp~1 := 1; 337#L284-1 check_#res := check_~tmp~1; 339#L296 main_#t~ret23 := check_#res;main_~c1~0 := main_#t~ret23;havoc main_#t~ret23;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 340#L355 assume !(0 == assert_~arg % 256); 367#L350 main_#t~post24 := main_~i2~0;main_~i2~0 := 1 + main_#t~post24;havoc main_#t~post24; 389#L331-2 [2019-11-20 11:36:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:34,214 INFO L82 PathProgramCache]: Analyzing trace with hash -47575204, now seen corresponding path program 2 times [2019-11-20 11:36:34,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:34,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824632726] [2019-11-20 11:36:34,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:34,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:36:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1470655047, now seen corresponding path program 1 times [2019-11-20 11:36:34,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:34,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467941523] [2019-11-20 11:36:34,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:36:34,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:36:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:34,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1996203394, now seen corresponding path program 1 times [2019-11-20 11:36:34,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:36:34,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440503606] [2019-11-20 11:36:34,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:36:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:36:34,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440503606] [2019-11-20 11:36:34,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:36:34,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:36:34,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794546996] [2019-11-20 11:36:34,742 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2019-11-20 11:36:35,497 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-11-20 11:36:35,506 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:36:35,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:36:35,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:36:35,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:36:35,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 11:36:35,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:35,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:36:35,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:36:35,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c_Iteration3_Loop [2019-11-20 11:36:35,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:36:35,509 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:36:35,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:35,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,392 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-20 11:36:36,434 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:36:36,435 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:36,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:36:36,446 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:36,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:36:36,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:36:36,577 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 11:36:36,579 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:36:36,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:36:36,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:36:36,580 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:36:36,580 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:36:36,580 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:36,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:36:36,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:36:36,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c_Iteration3_Loop [2019-11-20 11:36:36,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:36:36,580 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:36:36,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:36,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:36:37,345 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:36:37,351 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:37,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:36:37,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:36:37,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:36:37,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:36:37,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:36:37,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:36:37,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:36:37,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:36:37,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:36:37,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:36:37,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:36:37,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:36:37,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:36:37,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:36:37,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:36:37,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:36:37,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:37,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:36:37,415 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 11:36:37,415 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8480396f-be25-4c20-a860-acc8d7d12376/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:36:37,433 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:36:37,434 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 11:36:37,434 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:36:37,434 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2019-11-20 11:36:37,438 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 11:36:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:36:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:37,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:36:37,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:36:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:36:37,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:36:37,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:36:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:36:37,561 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 [2019-11-20 11:36:37,562 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 99 transitions. cyclomatic complexity: 29 Second operand 3 states. [2019-11-20 11:36:37,632 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 99 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 121 states and 178 transitions. Complement of second has 4 states. [2019-11-20 11:36:37,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 11:36:37,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:36:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2019-11-20 11:36:37,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 21 letters. Loop has 19 letters. [2019-11-20 11:36:37,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:36:37,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 40 letters. Loop has 19 letters. [2019-11-20 11:36:37,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:36:37,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 21 letters. Loop has 38 letters. [2019-11-20 11:36:37,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:36:37,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 178 transitions. [2019-11-20 11:36:37,641 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:36:37,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 0 states and 0 transitions. [2019-11-20 11:36:37,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:36:37,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:36:37,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:36:37,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:36:37,642 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:36:37,642 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:36:37,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:36:37,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:36:37,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:36:37,643 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-11-20 11:36:37,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:36:37,643 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-20 11:36:37,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:36:37,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-20 11:36:37,644 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:36:37,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:36:37,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:36:37,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:36:37,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:36:37,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:36:37,645 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:36:37,645 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:36:37,645 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:36:37,645 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 11:36:37,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:36:37,645 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:36:37,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 11:36:37,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:36:37 BoogieIcfgContainer [2019-11-20 11:36:37,653 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:36:37,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:36:37,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:36:37,653 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:36:37,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:33" (3/4) ... [2019-11-20 11:36:37,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:36:37,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:36:37,659 INFO L168 Benchmark]: Toolchain (without parser) took 6002.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -97.5 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,660 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:36:37,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,662 INFO L168 Benchmark]: Boogie Preprocessor took 74.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:36:37,662 INFO L168 Benchmark]: RCFGBuilder took 764.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,663 INFO L168 Benchmark]: BuchiAutomizer took 4528.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 115.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,664 INFO L168 Benchmark]: Witness Printer took 4.62 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:36:37,671 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 533.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 764.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4528.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 115.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.62 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 71 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 318 SDtfs, 177 SDslu, 590 SDs, 0 SdLazy, 22 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital215 mio100 ax117 hnf104 lsp22 ukn65 mio100 lsp100 div168 bol100 ite100 ukn100 eq153 hnf75 smp100 dnf104 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 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! Received shutdown request...