./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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 421c1ce510bb92ff52c2b6487f32b0bc37caaab2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:48:20,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:48:20,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:48:20,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:48:20,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:48:20,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:48:20,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:48:20,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:48:20,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:48:20,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:48:20,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:48:20,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:48:20,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:48:20,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:48:20,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:48:20,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:48:20,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:48:20,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:48:20,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:48:20,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:48:20,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:48:20,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:48:20,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:48:20,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:48:20,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:48:20,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:48:20,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:48:20,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:48:20,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:48:20,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:48:20,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:48:20,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:48:20,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:48:20,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:48:20,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:48:20,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:48:20,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:48:20,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:48:20,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:48:20,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:48:20,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:48:20,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:48:20,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:48:20,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:48:20,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:48:20,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:48:20,636 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:48:20,636 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:48:20,636 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:48:20,636 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:48:20,636 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:48:20,637 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:48:20,638 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:48:20,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:48:20,638 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:48:20,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:48:20,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:48:20,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:48:20,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:48:20,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:48:20,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:48:20,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:48:20,640 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:48:20,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:48:20,640 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:48:20,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:48:20,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:48:20,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:48:20,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:48:20,641 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:48:20,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:48:20,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:48:20,642 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:48:20,643 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:48:20,643 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_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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 -> 421c1ce510bb92ff52c2b6487f32b0bc37caaab2 [2019-11-25 08:48:20,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:48:20,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:48:20,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:48:20,849 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:48:20,849 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:48:20,850 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2019-11-25 08:48:20,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/data/e9dcfcad1/48761cfde8ab43d89e7ca9d5ab2d2bc2/FLAGf79eead15 [2019-11-25 08:48:21,374 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:48:21,375 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2019-11-25 08:48:21,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/data/e9dcfcad1/48761cfde8ab43d89e7ca9d5ab2d2bc2/FLAGf79eead15 [2019-11-25 08:48:21,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/data/e9dcfcad1/48761cfde8ab43d89e7ca9d5ab2d2bc2 [2019-11-25 08:48:21,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:48:21,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:48:21,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:21,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:48:21,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:48:21,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7643f431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21, skipping insertion in model container [2019-11-25 08:48:21,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:48:21,472 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:48:21,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:21,754 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:48:21,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:21,857 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:48:21,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21 WrapperNode [2019-11-25 08:48:21,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:21,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:21,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:48:21,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:48:21,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:21,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:48:21,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:48:21,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:48:21,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... [2019-11-25 08:48:21,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:48:21,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:48:21,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:48:21,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:48:21,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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 [2019-11-25 08:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:48:22,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:48:22,845 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:48:22,846 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-25 08:48:22,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:22 BoogieIcfgContainer [2019-11-25 08:48:22,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:48:22,847 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:48:22,848 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:48:22,851 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:48:22,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:22,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:48:21" (1/3) ... [2019-11-25 08:48:22,852 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13ad1faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:48:22, skipping insertion in model container [2019-11-25 08:48:22,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:22,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:21" (2/3) ... [2019-11-25 08:48:22,853 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13ad1faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:48:22, skipping insertion in model container [2019-11-25 08:48:22,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:22,854 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:22" (3/3) ... [2019-11-25 08:48:22,855 INFO L371 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2019-11-25 08:48:22,892 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:48:22,892 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:48:22,892 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:48:22,893 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:48:22,893 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:48:22,893 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:48:22,893 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:48:22,894 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:48:22,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-11-25 08:48:22,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2019-11-25 08:48:22,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:22,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:22,947 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,947 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,948 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:48:22,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-11-25 08:48:22,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2019-11-25 08:48:22,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:22,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:22,960 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,962 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,969 INFO L794 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue ~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nomsg~0 := -1;~p12~0 := 0;~p13~0 := 0;~p21~0 := 0;~p23~0 := 0;~p31~0 := 0;~p32~0 := 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]; 10#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~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet6;havoc main_#t~nondet6;~ep13~0 := main_#t~nondet7;havoc main_#t~nondet7;~ep21~0 := main_#t~nondet8;havoc main_#t~nondet8;~ep23~0 := main_#t~nondet9;havoc main_#t~nondet9;~ep31~0 := main_#t~nondet10;havoc main_#t~nondet10;~ep32~0 := main_#t~nondet11;havoc main_#t~nondet11;~id1~0 := main_#t~nondet12;havoc main_#t~nondet12;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~nl1~0 := main_#t~nondet15;havoc main_#t~nondet15;~m1~0 := main_#t~nondet16;havoc main_#t~nondet16;~max1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~newmax1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~r2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~nl2~0 := main_#t~nondet23;havoc main_#t~nondet23;~m2~0 := main_#t~nondet24;havoc main_#t~nondet24;~max2~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode2~0 := main_#t~nondet26;havoc main_#t~nondet26;~newmax2~0 := main_#t~nondet27;havoc main_#t~nondet27;~id3~0 := main_#t~nondet28;havoc main_#t~nondet28;~r3~0 := main_#t~nondet29;havoc main_#t~nondet29;~st3~0 := main_#t~nondet30;havoc main_#t~nondet30;~nl3~0 := main_#t~nondet31;havoc main_#t~nondet31;~m3~0 := main_#t~nondet32;havoc main_#t~nondet32;~max3~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode3~0 := main_#t~nondet34;havoc main_#t~nondet34;~newmax3~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 49#L301true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 33#L304-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 88#L314true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 62#L317-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 121#L327true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 99#L330-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 11#L340true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 8#L343-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 58#L353true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 35#L356-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 92#L366true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 86#L369-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 140#L379true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 142#L379-1true init_#res := init_~tmp___5~0; 133#L500true main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 96#L611-2true [2019-11-25 08:48:22,970 INFO L796 eck$LassoCheckResult]: Loop: 96#L611-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 70#L124true assume !(0 != ~mode1~0 % 256); 64#L152true assume !(~r1~0 < 1); 63#L152-1true ~mode1~0 := 1; 67#L124-2true havoc node2_#t~ite2, node2_#t~ite3, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 3#L175true assume !(0 != ~mode2~0 % 256); 136#L203true assume !(~r2~0 < 2); 135#L203-1true ~mode2~0 := 1; 16#L175-2true havoc node3_#t~ite4, node3_#t~ite5, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 85#L226true assume !(0 != ~mode3~0 % 256); 43#L254true assume !(~r3~0 < 2); 42#L254-1true ~mode3~0 := 1; 76#L226-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 15#L508true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 18#L508-1true check_#res := check_~tmp~1; 95#L556true main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 112#L641true assume !(0 == assert_~arg % 256); 83#L636true main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 96#L611-2true [2019-11-25 08:48:22,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:22,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2018293946, now seen corresponding path program 1 times [2019-11-25 08:48:22,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:22,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788494864] [2019-11-25 08:48:22,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:23,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788494864] [2019-11-25 08:48:23,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:23,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:23,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697275752] [2019-11-25 08:48:23,216 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:48:23,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:23,217 INFO L82 PathProgramCache]: Analyzing trace with hash -752238638, now seen corresponding path program 1 times [2019-11-25 08:48:23,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:23,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032679026] [2019-11-25 08:48:23,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:23,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032679026] [2019-11-25 08:48:23,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:23,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:48:23,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452034971] [2019-11-25 08:48:23,348 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:48:23,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:23,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:48:23,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:48:23,369 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 4 states. [2019-11-25 08:48:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:23,469 INFO L93 Difference]: Finished difference Result 142 states and 243 transitions. [2019-11-25 08:48:23,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:48:23,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 243 transitions. [2019-11-25 08:48:23,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:48:23,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 135 states and 207 transitions. [2019-11-25 08:48:23,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2019-11-25 08:48:23,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-11-25 08:48:23,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 207 transitions. [2019-11-25 08:48:23,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:23,499 INFO L688 BuchiCegarLoop]: Abstraction has 135 states and 207 transitions. [2019-11-25 08:48:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 207 transitions. [2019-11-25 08:48:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-11-25 08:48:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-25 08:48:23,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 207 transitions. [2019-11-25 08:48:23,550 INFO L711 BuchiCegarLoop]: Abstraction has 135 states and 207 transitions. [2019-11-25 08:48:23,551 INFO L591 BuchiCegarLoop]: Abstraction has 135 states and 207 transitions. [2019-11-25 08:48:23,551 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:48:23,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 207 transitions. [2019-11-25 08:48:23,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:48:23,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:23,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:23,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:23,565 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:23,577 INFO L794 eck$LassoCheckResult]: Stem: 420#ULTIMATE.startENTRY ~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nomsg~0 := -1;~p12~0 := 0;~p13~0 := 0;~p21~0 := 0;~p23~0 := 0;~p31~0 := 0;~p32~0 := 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]; 314#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~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet6;havoc main_#t~nondet6;~ep13~0 := main_#t~nondet7;havoc main_#t~nondet7;~ep21~0 := main_#t~nondet8;havoc main_#t~nondet8;~ep23~0 := main_#t~nondet9;havoc main_#t~nondet9;~ep31~0 := main_#t~nondet10;havoc main_#t~nondet10;~ep32~0 := main_#t~nondet11;havoc main_#t~nondet11;~id1~0 := main_#t~nondet12;havoc main_#t~nondet12;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~nl1~0 := main_#t~nondet15;havoc main_#t~nondet15;~m1~0 := main_#t~nondet16;havoc main_#t~nondet16;~max1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~newmax1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~r2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~nl2~0 := main_#t~nondet23;havoc main_#t~nondet23;~m2~0 := main_#t~nondet24;havoc main_#t~nondet24;~max2~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode2~0 := main_#t~nondet26;havoc main_#t~nondet26;~newmax2~0 := main_#t~nondet27;havoc main_#t~nondet27;~id3~0 := main_#t~nondet28;havoc main_#t~nondet28;~r3~0 := main_#t~nondet29;havoc main_#t~nondet29;~st3~0 := main_#t~nondet30;havoc main_#t~nondet30;~nl3~0 := main_#t~nondet31;havoc main_#t~nondet31;~m3~0 := main_#t~nondet32;havoc main_#t~nondet32;~max3~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode3~0 := main_#t~nondet34;havoc main_#t~nondet34;~newmax3~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 315#L301 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 356#L304-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 358#L314 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 318#L317-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 396#L327 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 393#L330-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 316#L340 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 306#L343-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 307#L353 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 361#L356-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 362#L366 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 349#L369-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 414#L379 assume ~id1~0 != ~id2~0; 411#L380 assume ~id1~0 != ~id3~0; 345#L381 assume ~id2~0 != ~id3~0; 346#L382 assume ~id1~0 >= 0; 404#L383 assume ~id2~0 >= 0; 337#L384 assume ~id3~0 >= 0; 338#L385 assume 0 == ~r1~0; 391#L386 assume 0 == ~r2~0; 302#L387 assume 0 == ~r3~0; 303#L388 assume 0 != init_~r122~0 % 256; 384#L389 assume 0 != init_~r132~0 % 256; 385#L390 assume 0 != init_~r212~0 % 256; 407#L391 assume 0 != init_~r232~0 % 256; 343#L392 assume 0 != init_~r312~0 % 256; 344#L393 assume 0 != init_~r322~0 % 256; 403#L394 assume ~max1~0 == ~id1~0; 335#L395 assume ~max2~0 == ~id2~0; 336#L396 assume ~max3~0 == ~id3~0; 390#L397 assume 0 == ~st1~0; 300#L398 assume 0 == ~st2~0; 301#L399 assume 0 == ~st3~0; 382#L400 assume 0 == ~nl1~0; 383#L401 assume 0 == ~nl2~0; 406#L402 assume 0 == ~nl3~0; 341#L403 assume 0 == ~mode1~0 % 256; 342#L404 assume 0 == ~mode2~0 % 256; 402#L405 assume 0 == ~mode3~0 % 256; 333#L406 assume 0 != ~newmax1~0 % 256; 334#L407 assume 0 != ~newmax2~0 % 256; 386#L408 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 387#L379-1 init_#res := init_~tmp___5~0; 431#L500 main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 410#L611-2 [2019-11-25 08:48:23,578 INFO L796 eck$LassoCheckResult]: Loop: 410#L611-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 400#L124 assume !(0 != ~mode1~0 % 256); 398#L152 assume !(~r1~0 < 1); 326#L152-1 ~mode1~0 := 1; 397#L124-2 havoc node2_#t~ite2, node2_#t~ite3, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 297#L175 assume !(0 != ~mode2~0 % 256); 298#L203 assume !(~r2~0 < 2); 371#L203-1 ~mode2~0 := 1; 322#L175-2 havoc node3_#t~ite4, node3_#t~ite5, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 323#L226 assume !(0 != ~mode3~0 % 256); 374#L254 assume !(~r3~0 < 2); 372#L254-1 ~mode3~0 := 1; 373#L226-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 320#L508 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 310#L508-1 check_#res := check_~tmp~1; 324#L556 main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 418#L641 assume !(0 == assert_~arg % 256); 409#L636 main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 410#L611-2 [2019-11-25 08:48:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:23,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1207151116, now seen corresponding path program 1 times [2019-11-25 08:48:23,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:23,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701593276] [2019-11-25 08:48:23,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:23,794 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:23,795 INFO L82 PathProgramCache]: Analyzing trace with hash -752238638, now seen corresponding path program 2 times [2019-11-25 08:48:23,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:23,796 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172212132] [2019-11-25 08:48:23,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:23,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172212132] [2019-11-25 08:48:23,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:23,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:48:23,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037971730] [2019-11-25 08:48:23,908 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:48:23,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:23,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:48:23,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:48:23,909 INFO L87 Difference]: Start difference. First operand 135 states and 207 transitions. cyclomatic complexity: 73 Second operand 5 states. [2019-11-25 08:48:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:23,989 INFO L93 Difference]: Finished difference Result 138 states and 209 transitions. [2019-11-25 08:48:23,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:48:23,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 209 transitions. [2019-11-25 08:48:23,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:48:23,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 135 states and 199 transitions. [2019-11-25 08:48:23,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2019-11-25 08:48:23,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-11-25 08:48:23,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 199 transitions. [2019-11-25 08:48:23,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:23,995 INFO L688 BuchiCegarLoop]: Abstraction has 135 states and 199 transitions. [2019-11-25 08:48:23,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 199 transitions. [2019-11-25 08:48:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-11-25 08:48:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-25 08:48:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 199 transitions. [2019-11-25 08:48:24,019 INFO L711 BuchiCegarLoop]: Abstraction has 135 states and 199 transitions. [2019-11-25 08:48:24,019 INFO L591 BuchiCegarLoop]: Abstraction has 135 states and 199 transitions. [2019-11-25 08:48:24,020 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:48:24,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 199 transitions. [2019-11-25 08:48:24,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:48:24,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:24,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:24,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,027 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, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,027 INFO L794 eck$LassoCheckResult]: Stem: 705#ULTIMATE.startENTRY ~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nomsg~0 := -1;~p12~0 := 0;~p13~0 := 0;~p21~0 := 0;~p23~0 := 0;~p31~0 := 0;~p32~0 := 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]; 598#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~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet6;havoc main_#t~nondet6;~ep13~0 := main_#t~nondet7;havoc main_#t~nondet7;~ep21~0 := main_#t~nondet8;havoc main_#t~nondet8;~ep23~0 := main_#t~nondet9;havoc main_#t~nondet9;~ep31~0 := main_#t~nondet10;havoc main_#t~nondet10;~ep32~0 := main_#t~nondet11;havoc main_#t~nondet11;~id1~0 := main_#t~nondet12;havoc main_#t~nondet12;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~nl1~0 := main_#t~nondet15;havoc main_#t~nondet15;~m1~0 := main_#t~nondet16;havoc main_#t~nondet16;~max1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~newmax1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~r2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~nl2~0 := main_#t~nondet23;havoc main_#t~nondet23;~m2~0 := main_#t~nondet24;havoc main_#t~nondet24;~max2~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode2~0 := main_#t~nondet26;havoc main_#t~nondet26;~newmax2~0 := main_#t~nondet27;havoc main_#t~nondet27;~id3~0 := main_#t~nondet28;havoc main_#t~nondet28;~r3~0 := main_#t~nondet29;havoc main_#t~nondet29;~st3~0 := main_#t~nondet30;havoc main_#t~nondet30;~nl3~0 := main_#t~nondet31;havoc main_#t~nondet31;~m3~0 := main_#t~nondet32;havoc main_#t~nondet32;~max3~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode3~0 := main_#t~nondet34;havoc main_#t~nondet34;~newmax3~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 599#L301 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 641#L304-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 643#L314 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 602#L317-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 681#L327 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 678#L330-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 600#L340 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 591#L343-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 592#L353 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 646#L356-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 651#L366 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 634#L369-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 699#L379 assume ~id1~0 != ~id2~0; 696#L380 assume ~id1~0 != ~id3~0; 630#L381 assume ~id2~0 != ~id3~0; 631#L382 assume ~id1~0 >= 0; 689#L383 assume ~id2~0 >= 0; 622#L384 assume ~id3~0 >= 0; 623#L385 assume 0 == ~r1~0; 676#L386 assume 0 == ~r2~0; 587#L387 assume 0 == ~r3~0; 588#L388 assume 0 != init_~r122~0 % 256; 669#L389 assume 0 != init_~r132~0 % 256; 670#L390 assume 0 != init_~r212~0 % 256; 693#L391 assume 0 != init_~r232~0 % 256; 628#L392 assume 0 != init_~r312~0 % 256; 629#L393 assume 0 != init_~r322~0 % 256; 688#L394 assume ~max1~0 == ~id1~0; 620#L395 assume ~max2~0 == ~id2~0; 621#L396 assume ~max3~0 == ~id3~0; 675#L397 assume 0 == ~st1~0; 585#L398 assume 0 == ~st2~0; 586#L399 assume 0 == ~st3~0; 667#L400 assume 0 == ~nl1~0; 668#L401 assume 0 == ~nl2~0; 691#L402 assume 0 == ~nl3~0; 626#L403 assume 0 == ~mode1~0 % 256; 627#L404 assume 0 == ~mode2~0 % 256; 687#L405 assume 0 == ~mode3~0 % 256; 618#L406 assume 0 != ~newmax1~0 % 256; 619#L407 assume 0 != ~newmax2~0 % 256; 671#L408 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 672#L379-1 init_#res := init_~tmp___5~0; 716#L500 main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 695#L611-2 [2019-11-25 08:48:24,028 INFO L796 eck$LassoCheckResult]: Loop: 695#L611-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 685#L124 assume !(0 != ~mode1~0 % 256); 683#L152 assume !(~r1~0 < 1); 611#L152-1 ~mode1~0 := 1; 682#L124-2 havoc node2_#t~ite2, node2_#t~ite3, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 582#L175 assume !(0 != ~mode2~0 % 256); 583#L203 assume !(~r2~0 < 2); 656#L203-1 ~mode2~0 := 1; 607#L175-2 havoc node3_#t~ite4, node3_#t~ite5, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 608#L226 assume !(0 != ~mode3~0 % 256); 659#L254 assume !(~r3~0 < 2); 657#L254-1 ~mode3~0 := 1; 658#L226-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 605#L508 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 606#L509 assume ~st1~0 + ~nl1~0 <= 1; 663#L510 assume ~st2~0 + ~nl2~0 <= 1; 593#L511 assume ~st3~0 + ~nl3~0 <= 1; 594#L512 assume ~r1~0 >= 2; 615#L516 assume ~r1~0 < 2; 616#L521 assume ~r1~0 >= 2; 661#L526 assume ~r1~0 < 2;check_~tmp~1 := 1; 604#L508-1 check_#res := check_~tmp~1; 609#L556 main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 703#L641 assume !(0 == assert_~arg % 256); 694#L636 main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 695#L611-2 [2019-11-25 08:48:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1207151116, now seen corresponding path program 2 times [2019-11-25 08:48:24,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49030374] [2019-11-25 08:48:24,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,136 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:24,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,137 INFO L82 PathProgramCache]: Analyzing trace with hash 803863027, now seen corresponding path program 1 times [2019-11-25 08:48:24,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037375000] [2019-11-25 08:48:24,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:24,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037375000] [2019-11-25 08:48:24,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:24,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:24,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211312347] [2019-11-25 08:48:24,173 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:48:24,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:24,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:24,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:24,174 INFO L87 Difference]: Start difference. First operand 135 states and 199 transitions. cyclomatic complexity: 65 Second operand 3 states. [2019-11-25 08:48:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:24,219 INFO L93 Difference]: Finished difference Result 193 states and 286 transitions. [2019-11-25 08:48:24,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:24,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 286 transitions. [2019-11-25 08:48:24,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2019-11-25 08:48:24,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 193 states and 286 transitions. [2019-11-25 08:48:24,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2019-11-25 08:48:24,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2019-11-25 08:48:24,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 286 transitions. [2019-11-25 08:48:24,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:24,227 INFO L688 BuchiCegarLoop]: Abstraction has 193 states and 286 transitions. [2019-11-25 08:48:24,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 286 transitions. [2019-11-25 08:48:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-25 08:48:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-25 08:48:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 286 transitions. [2019-11-25 08:48:24,244 INFO L711 BuchiCegarLoop]: Abstraction has 193 states and 286 transitions. [2019-11-25 08:48:24,244 INFO L591 BuchiCegarLoop]: Abstraction has 193 states and 286 transitions. [2019-11-25 08:48:24,244 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:48:24,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 286 transitions. [2019-11-25 08:48:24,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2019-11-25 08:48:24,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:24,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:24,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,249 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,249 INFO L794 eck$LassoCheckResult]: Stem: 1044#ULTIMATE.startENTRY ~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nomsg~0 := -1;~p12~0 := 0;~p13~0 := 0;~p21~0 := 0;~p23~0 := 0;~p31~0 := 0;~p32~0 := 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]; 929#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~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet6;havoc main_#t~nondet6;~ep13~0 := main_#t~nondet7;havoc main_#t~nondet7;~ep21~0 := main_#t~nondet8;havoc main_#t~nondet8;~ep23~0 := main_#t~nondet9;havoc main_#t~nondet9;~ep31~0 := main_#t~nondet10;havoc main_#t~nondet10;~ep32~0 := main_#t~nondet11;havoc main_#t~nondet11;~id1~0 := main_#t~nondet12;havoc main_#t~nondet12;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~nl1~0 := main_#t~nondet15;havoc main_#t~nondet15;~m1~0 := main_#t~nondet16;havoc main_#t~nondet16;~max1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~newmax1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~r2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~nl2~0 := main_#t~nondet23;havoc main_#t~nondet23;~m2~0 := main_#t~nondet24;havoc main_#t~nondet24;~max2~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode2~0 := main_#t~nondet26;havoc main_#t~nondet26;~newmax2~0 := main_#t~nondet27;havoc main_#t~nondet27;~id3~0 := main_#t~nondet28;havoc main_#t~nondet28;~r3~0 := main_#t~nondet29;havoc main_#t~nondet29;~st3~0 := main_#t~nondet30;havoc main_#t~nondet30;~nl3~0 := main_#t~nondet31;havoc main_#t~nondet31;~m3~0 := main_#t~nondet32;havoc main_#t~nondet32;~max3~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode3~0 := main_#t~nondet34;havoc main_#t~nondet34;~newmax3~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 930#L301 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 975#L304-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 977#L314 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 936#L317-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1015#L327 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 1012#L330-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 931#L340 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 925#L343-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 926#L353 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 980#L356-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 981#L366 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 967#L369-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1035#L379 assume ~id1~0 != ~id2~0; 1030#L380 assume ~id1~0 != ~id3~0; 964#L381 assume ~id2~0 != ~id3~0; 965#L382 assume ~id1~0 >= 0; 1025#L383 assume ~id2~0 >= 0; 956#L384 assume ~id3~0 >= 0; 957#L385 assume 0 == ~r1~0; 1010#L386 assume 0 == ~r2~0; 921#L387 assume 0 == ~r3~0; 922#L388 assume 0 != init_~r122~0 % 256; 1003#L389 assume 0 != init_~r132~0 % 256; 1004#L390 assume 0 != init_~r212~0 % 256; 1028#L391 assume 0 != init_~r232~0 % 256; 962#L392 assume 0 != init_~r312~0 % 256; 963#L393 assume 0 != init_~r322~0 % 256; 1024#L394 assume ~max1~0 == ~id1~0; 954#L395 assume ~max2~0 == ~id2~0; 955#L396 assume ~max3~0 == ~id3~0; 1007#L397 assume 0 == ~st1~0; 919#L398 assume 0 == ~st2~0; 920#L399 assume 0 == ~st3~0; 1001#L400 assume 0 == ~nl1~0; 1002#L401 assume 0 == ~nl2~0; 1027#L402 assume 0 == ~nl3~0; 960#L403 assume 0 == ~mode1~0 % 256; 961#L404 assume 0 == ~mode2~0 % 256; 1023#L405 assume 0 == ~mode3~0 % 256; 952#L406 assume 0 != ~newmax1~0 % 256; 953#L407 assume 0 != ~newmax2~0 % 256; 1005#L408 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 1006#L379-1 init_#res := init_~tmp___5~0; 1059#L500 main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 1041#L611-2 [2019-11-25 08:48:24,250 INFO L796 eck$LassoCheckResult]: Loop: 1041#L611-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_#t~ite1, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 1042#L124 assume !(0 != ~mode1~0 % 256); 1060#L152 assume !(~r1~0 < 1); 944#L152-1 ~mode1~0 := 1; 1016#L124-2 havoc node2_#t~ite2, node2_#t~ite3, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 916#L175 assume !(0 != ~mode2~0 % 256); 917#L203 assume !(~r2~0 < 2); 990#L203-1 ~mode2~0 := 1; 941#L175-2 havoc node3_#t~ite4, node3_#t~ite5, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 942#L226 assume !(0 != ~mode3~0 % 256); 993#L254 assume !(~r3~0 < 2); 991#L254-1 ~mode3~0 := 1; 992#L226-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 939#L508 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 940#L509 assume ~st1~0 + ~nl1~0 <= 1; 1063#L510 assume ~st2~0 + ~nl2~0 <= 1; 1062#L511 assume ~st3~0 + ~nl3~0 <= 1; 1061#L512 assume !(~r1~0 >= 2); 1019#L515 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1020#L516 assume ~r1~0 < 2; 1107#L521 assume !(~r1~0 >= 2); 1056#L525 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1057#L526 assume ~r1~0 < 2;check_~tmp~1 := 1; 946#L508-1 check_#res := check_~tmp~1; 947#L556 main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1040#L641 assume !(0 == assert_~arg % 256); 1106#L636 main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 1041#L611-2 [2019-11-25 08:48:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1207151116, now seen corresponding path program 3 times [2019-11-25 08:48:24,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77950510] [2019-11-25 08:48:24,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,349 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,349 INFO L82 PathProgramCache]: Analyzing trace with hash 533897331, now seen corresponding path program 1 times [2019-11-25 08:48:24,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12586911] [2019-11-25 08:48:24,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:24,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:24,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1612707960, now seen corresponding path program 1 times [2019-11-25 08:48:24,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636568792] [2019-11-25 08:48:24,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:24,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636568792] [2019-11-25 08:48:24,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:24,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:24,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16182582] [2019-11-25 08:48:24,781 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2019-11-25 08:48:24,941 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:48:24,954 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:48:24,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:48:24,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:48:24,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:48:24,955 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:48:24,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:24,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:48:24,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:48:24,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2019-11-25 08:48:24,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:48:24,956 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:48:24,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:24,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,644 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:48:25,645 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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) [2019-11-25 08:48:25,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:48:25,662 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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) [2019-11-25 08:48:25,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:48:25,683 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:25,811 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:48:25,826 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:48:25,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:48:25,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:48:25,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:48:25,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:48:25,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:25,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:48:25,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:48:25,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2019-11-25 08:48:25,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:48:25,827 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:48:25,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:25,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:48:26,439 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:48:26,443 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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 [2019-11-25 08:48:26,450 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 [2019-11-25 08:48:26,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,470 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 [2019-11-25 08:48:26,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:48:26,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:48:26,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/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 [2019-11-25 08:48:26,491 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 [2019-11-25 08:48:26,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:48:26,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:48:26,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:48:26,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,514 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 [2019-11-25 08:48:26,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,549 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 [2019-11-25 08:48:26,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:48:26,561 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 [2019-11-25 08:48:26,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,573 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 [2019-11-25 08:48:26,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,602 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 [2019-11-25 08:48:26,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:48:26,619 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 [2019-11-25 08:48:26,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,639 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 [2019-11-25 08:48:26,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,648 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 [2019-11-25 08:48:26,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:48:26,656 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 [2019-11-25 08:48:26,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:48:26,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,680 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 [2019-11-25 08:48:26,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,694 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 [2019-11-25 08:48:26,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:48:26,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:48:26,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:48:26,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:48:26,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:48:26,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:48:26,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:48:26,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:48:26,702 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:48:26,702 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_e0d7eb0c-5c2b-4dcb-85fc-e8f430c18888/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:48:26,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:48:26,708 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:48:26,709 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:48:26,709 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2019-11-25 08:48:26,716 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:48:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:26,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:48:26,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:48:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:26,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:48:26,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:48:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:26,925 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 [2019-11-25 08:48:26,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 286 transitions. cyclomatic complexity: 94 Second operand 3 states. [2019-11-25 08:48:26,980 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 286 transitions. cyclomatic complexity: 94. Second operand 3 states. Result 327 states and 496 transitions. Complement of second has 4 states. [2019-11-25 08:48:26,981 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 [2019-11-25 08:48:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:48:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2019-11-25 08:48:26,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 46 letters. Loop has 27 letters. [2019-11-25 08:48:26,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:48:26,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 73 letters. Loop has 27 letters. [2019-11-25 08:48:26,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:48:26,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 46 letters. Loop has 54 letters. [2019-11-25 08:48:26,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:48:26,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 496 transitions. [2019-11-25 08:48:26,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:48:26,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 0 states and 0 transitions. [2019-11-25 08:48:26,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:48:26,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:48:26,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:48:26,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:26,991 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:26,991 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:26,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:26,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:26,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:26,991 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-11-25 08:48:26,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:26,991 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:48:26,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:48:26,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:48:26,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:48:26,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:48:26,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:26,992 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:26,992 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:48:26,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:48:26,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:48:26,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:48:26,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:48:26 BoogieIcfgContainer [2019-11-25 08:48:26,999 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:48:27,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:48:27,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:48:27,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:48:27,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:22" (3/4) ... [2019-11-25 08:48:27,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:48:27,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:48:27,005 INFO L168 Benchmark]: Toolchain (without parser) took 5596.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:27,006 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:48:27,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:27,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:27,007 INFO L168 Benchmark]: Boogie Preprocessor took 50.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:48:27,007 INFO L168 Benchmark]: RCFGBuilder took 869.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:27,008 INFO L168 Benchmark]: BuchiAutomizer took 4151.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -41.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:27,008 INFO L168 Benchmark]: Witness Printer took 4.13 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. [2019-11-25 08:48:27,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 869.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4151.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -41.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 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. * 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 + 11 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 4.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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 193 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 917 SDtfs, 410 SDslu, 1351 SDs, 0 SdLazy, 40 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax125 hnf104 lsp20 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...