./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 64bit --witnessprinter.graph.data.programhash ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:05:02,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:05:02,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:05:03,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:05:03,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:05:03,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:05:03,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:05:03,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:05:03,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:05:03,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:05:03,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:05:03,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:05:03,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:05:03,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:05:03,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:05:03,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:05:03,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:05:03,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:05:03,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:05:03,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:05:03,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:05:03,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:05:03,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:05:03,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:05:03,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:05:03,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:05:03,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:05:03,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:05:03,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:05:03,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:05:03,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:05:03,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:05:03,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:05:03,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:05:03,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:05:03,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:05:03,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:05:03,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:05:03,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:05:03,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:05:03,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:05:03,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 02:05:03,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:05:03,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:05:03,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:05:03,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:05:03,076 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:05:03,076 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:05:03,077 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:05:03,077 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:05:03,077 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:05:03,077 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:05:03,078 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:05:03,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:05:03,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:05:03,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:05:03,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:05:03,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:05:03,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:05:03,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:05:03,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:05:03,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:05:03,080 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:05:03,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:05:03,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:05:03,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:05:03,081 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:05:03,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:05:03,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:05:03,082 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:05:03,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:05:03,083 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_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d [2019-11-20 02:05:03,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:05:03,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:05:03,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:05:03,270 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:05:03,270 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:05:03,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-11-20 02:05:03,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/data/9d210ee3b/76e61ec4e898425189404c5cac86e652/FLAG401bc9f63 [2019-11-20 02:05:03,707 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:05:03,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-11-20 02:05:03,712 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/data/9d210ee3b/76e61ec4e898425189404c5cac86e652/FLAG401bc9f63 [2019-11-20 02:05:04,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/data/9d210ee3b/76e61ec4e898425189404c5cac86e652 [2019-11-20 02:05:04,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:05:04,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:05:04,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:05:04,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:05:04,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:05:04,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@467593ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04, skipping insertion in model container [2019-11-20 02:05:04,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,165 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:05:04,180 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:05:04,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:05:04,324 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:05:04,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:05:04,462 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:05:04,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04 WrapperNode [2019-11-20 02:05:04,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:05:04,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:05:04,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:05:04,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:05:04,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:05:04,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:05:04,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:05:04,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:05:04,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... [2019-11-20 02:05:04,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:05:04,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:05:04,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:05:04,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:05:04,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:05:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:05:04,749 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:05:04,749 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 02:05:04,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:05:04 BoogieIcfgContainer [2019-11-20 02:05:04,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:05:04,751 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:05:04,751 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:05:04,754 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:05:04,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:05:04,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:05:04" (1/3) ... [2019-11-20 02:05:04,756 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@346601b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:05:04, skipping insertion in model container [2019-11-20 02:05:04,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:05:04,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:04" (2/3) ... [2019-11-20 02:05:04,757 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@346601b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:05:04, skipping insertion in model container [2019-11-20 02:05:04,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:05:04,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:05:04" (3/3) ... [2019-11-20 02:05:04,759 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-11-20 02:05:04,801 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:05:04,801 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:05:04,802 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:05:04,802 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:05:04,802 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:05:04,802 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:05:04,802 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:05:04,802 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:05:04,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 02:05:04,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:04,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:04,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:04,840 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:05:04,840 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:04,841 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:05:04,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 02:05:04,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:04,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:04,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:04,842 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:05:04,843 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:04,850 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L21true assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 5#L23-2true [2019-11-20 02:05:04,850 INFO L796 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 8#L25-2true assume !(main_~j~0 < main_~m~0); 7#L25-3true main_~i~0 := 1 + main_~i~0; 5#L23-2true [2019-11-20 02:05:04,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:04,856 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-20 02:05:04,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:04,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652490342] [2019-11-20 02:05:04,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:04,969 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:04,971 INFO L82 PathProgramCache]: Analyzing trace with hash 42943, now seen corresponding path program 1 times [2019-11-20 02:05:04,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:04,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332683694] [2019-11-20 02:05:04,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:04,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:04,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:04,998 INFO L82 PathProgramCache]: Analyzing trace with hash 29684988, now seen corresponding path program 1 times [2019-11-20 02:05:04,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:04,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933186402] [2019-11-20 02:05:04,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,038 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:05,150 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:05,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:05,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:05,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:05,152 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:05,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:05,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:05,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:05,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2019-11-20 02:05:05,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:05,153 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:05,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:05,299 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:05,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:05,314 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 [2019-11-20 02:05:05,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:05,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:05,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:05,339 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 [2019-11-20 02:05:05,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:05,344 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:05,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:05,359 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:05,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:05,385 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:05,504 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:05,506 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:05,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:05,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:05,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:05,506 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:05,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:05,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:05,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:05,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2019-11-20 02:05:05,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:05,507 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:05,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:05,628 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:05,632 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:05,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:05,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:05,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:05,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:05,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:05,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:05,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:05,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:05,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:05,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:05,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:05,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:05,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:05,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:05,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:05,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:05,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:05,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:05,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:05,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:05,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:05,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:05,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:05,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:05,704 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:05,708 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:05:05,709 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:05,718 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:05,719 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:05,719 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:05,719 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 02:05:05,723 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:05,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:05,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:05,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:05,795 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:05,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:05,820 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:05:05,821 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-20 02:05:05,880 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2019-11-20 02:05:05,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:05:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2019-11-20 02:05:05,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 02:05:05,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:05,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 02:05:05,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:05,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 02:05:05,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:05,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2019-11-20 02:05:05,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:05:05,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 14 states and 21 transitions. [2019-11-20 02:05:05,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 02:05:05,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 02:05:05,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2019-11-20 02:05:05,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:05,902 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-11-20 02:05:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2019-11-20 02:05:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-20 02:05:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 02:05:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 20 transitions. [2019-11-20 02:05:05,931 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2019-11-20 02:05:05,931 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2019-11-20 02:05:05,931 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:05:05,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 20 transitions. [2019-11-20 02:05:05,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:05:05,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:05,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:05,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 02:05:05,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 02:05:05,937 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 98#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 99#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 104#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 96#L28-2 [2019-11-20 02:05:05,937 INFO L796 eck$LassoCheckResult]: Loop: 96#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 96#L28-2 [2019-11-20 02:05:05,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:05,937 INFO L82 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2019-11-20 02:05:05,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:05,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410835750] [2019-11-20 02:05:05,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2019-11-20 02:05:05,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:05,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184210891] [2019-11-20 02:05:05,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:05,984 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:05,985 INFO L82 PathProgramCache]: Analyzing trace with hash 29685042, now seen corresponding path program 1 times [2019-11-20 02:05:05,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:05,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218842430] [2019-11-20 02:05:05,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,009 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:06,035 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:06,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:06,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:06,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:06,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:06,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:06,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:06,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2019-11-20 02:05:06,036 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:06,036 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:06,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,181 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:06,181 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,194 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,199 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:06,199 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,230 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:06,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,254 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:06,278 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:06,400 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:06,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:06,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:06,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:06,400 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:06,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:06,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:06,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2019-11-20 02:05:06,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:06,401 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:06,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:06,473 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:06,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:06,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:06,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:06,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:06,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:06,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:06,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:06,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:06,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:06,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:06,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:06,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:06,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:06,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:06,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:06,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:06,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:06,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:06,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:06,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:06,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:06,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:06,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:06,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:06,546 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:05:06,547 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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 [2019-11-20 02:05:06,552 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:06,553 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:06,553 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:06,553 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2019-11-20 02:05:06,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:06,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:06,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:06,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:06,597 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:06,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:06,598 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:05:06,599 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10 Second operand 2 states. [2019-11-20 02:05:06,614 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 27 states and 43 transitions. Complement of second has 6 states. [2019-11-20 02:05:06,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:06,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 02:05:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-11-20 02:05:06,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-20 02:05:06,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:06,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-20 02:05:06,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:06,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 02:05:06,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:06,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 43 transitions. [2019-11-20 02:05:06,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 02:05:06,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 18 states and 27 transitions. [2019-11-20 02:05:06,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 02:05:06,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 02:05:06,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2019-11-20 02:05:06,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:06,620 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-11-20 02:05:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2019-11-20 02:05:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 02:05:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 02:05:06,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2019-11-20 02:05:06,623 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-11-20 02:05:06,623 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-11-20 02:05:06,623 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:05:06,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2019-11-20 02:05:06,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 02:05:06,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:06,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:06,625 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:05:06,625 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:06,625 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 181#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 182#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 180#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 188#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 175#L28-3 main_~i~0 := main_~k~0; 186#L25-2 [2019-11-20 02:05:06,625 INFO L796 eck$LassoCheckResult]: Loop: 186#L25-2 assume !(main_~j~0 < main_~m~0); 187#L25-3 main_~i~0 := 1 + main_~i~0; 189#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 186#L25-2 [2019-11-20 02:05:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:06,626 INFO L82 PathProgramCache]: Analyzing trace with hash 920236275, now seen corresponding path program 1 times [2019-11-20 02:05:06,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:06,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004061331] [2019-11-20 02:05:06,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:06,640 INFO L82 PathProgramCache]: Analyzing trace with hash 50233, now seen corresponding path program 2 times [2019-11-20 02:05:06,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:06,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825193047] [2019-11-20 02:05:06,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:06,654 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 1 times [2019-11-20 02:05:06,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:06,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591373146] [2019-11-20 02:05:06,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:06,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:06,711 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:06,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:06,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:06,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:06,711 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:06,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:06,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:06,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2019-11-20 02:05:06,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:06,712 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:06,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:06,797 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:06,798 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,806 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:06,811 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/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) [2019-11-20 02:05:06,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,821 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:06,829 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:06,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,842 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:06,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:06,853 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:06,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:06,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:07,207 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:07,208 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:07,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:07,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:07,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:07,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:07,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:07,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:07,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2019-11-20 02:05:07,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:07,210 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:07,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,308 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:07,308 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:07,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:07,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:07,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:07,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:07,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:07,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:07,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:07,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:07,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:07,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:07,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:07,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:07,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:07,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:07,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:07,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:07,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:07,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:07,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:07,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:07,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:07,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:07,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,376 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:07,381 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:05:07,382 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:07,391 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:07,391 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:07,391 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:07,391 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,408 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:07,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:07,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:07,471 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:07,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 02:05:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:07,498 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:05:07,498 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 4 states. [2019-11-20 02:05:07,524 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 31 states and 51 transitions. Complement of second has 8 states. [2019-11-20 02:05:07,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:05:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-20 02:05:07,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 02:05:07,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:07,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 02:05:07,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:07,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 02:05:07,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:07,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 51 transitions. [2019-11-20 02:05:07,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:05:07,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 22 states and 34 transitions. [2019-11-20 02:05:07,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 02:05:07,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 02:05:07,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 34 transitions. [2019-11-20 02:05:07,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:07,529 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2019-11-20 02:05:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 34 transitions. [2019-11-20 02:05:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-11-20 02:05:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 02:05:07,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2019-11-20 02:05:07,532 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-11-20 02:05:07,532 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-11-20 02:05:07,532 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 02:05:07,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2019-11-20 02:05:07,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:05:07,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:07,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:07,533 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2019-11-20 02:05:07,533 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 02:05:07,534 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 277#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 278#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 288#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 287#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 276#L28-3 main_~i~0 := main_~k~0; 286#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 273#L28-2 [2019-11-20 02:05:07,534 INFO L796 eck$LassoCheckResult]: Loop: 273#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 273#L28-2 [2019-11-20 02:05:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:07,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 2 times [2019-11-20 02:05:07,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:07,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50276737] [2019-11-20 02:05:07,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:07,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:07,573 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 2 times [2019-11-20 02:05:07,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:07,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862627116] [2019-11-20 02:05:07,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:07,587 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:07,588 INFO L82 PathProgramCache]: Analyzing trace with hash -416201988, now seen corresponding path program 1 times [2019-11-20 02:05:07,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:07,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303916982] [2019-11-20 02:05:07,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:07,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303916982] [2019-11-20 02:05:07,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:05:07,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:05:07,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753703969] [2019-11-20 02:05:07,678 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:07,678 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:07,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:07,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:07,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:07,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:07,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:07,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2019-11-20 02:05:07,679 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:07,679 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:07,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,730 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:07,730 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:07,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:07,742 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:07,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:07,754 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,892 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:07,894 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:07,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:07,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:07,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:07,895 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:07,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:07,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:07,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2019-11-20 02:05:07,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:07,895 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:07,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:07,954 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:07,954 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:07,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:07,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:07,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:07,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:07,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:07,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:07,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:07,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:07,965 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:05:07,965 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:07,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:07,968 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:07,968 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:07,969 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2019-11-20 02:05:07,970 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:07,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:07,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,003 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:08,004 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:05:08,004 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-11-20 02:05:08,017 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2019-11-20 02:05:08,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 02:05:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-20 02:05:08,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-20 02:05:08,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,018 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:05:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,046 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:08,047 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:05:08,047 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-11-20 02:05:08,057 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2019-11-20 02:05:08,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 02:05:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-20 02:05:08,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-20 02:05:08,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,062 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:05:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,087 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:08,088 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:05:08,088 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-11-20 02:05:08,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 36 states and 60 transitions. Complement of second has 5 states. [2019-11-20 02:05:08,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:08,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 02:05:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2019-11-20 02:05:08,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-20 02:05:08,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-20 02:05:08,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:05:08,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 60 transitions. [2019-11-20 02:05:08,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 02:05:08,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 22 states and 33 transitions. [2019-11-20 02:05:08,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 02:05:08,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 02:05:08,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2019-11-20 02:05:08,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:08,109 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-11-20 02:05:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2019-11-20 02:05:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-11-20 02:05:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 02:05:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-11-20 02:05:08,111 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-20 02:05:08,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:05:08,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:05:08,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:05:08,115 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 4 states. [2019-11-20 02:05:08,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:05:08,160 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2019-11-20 02:05:08,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:05:08,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-11-20 02:05:08,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:08,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2019-11-20 02:05:08,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 02:05:08,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 02:05:08,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-11-20 02:05:08,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:08,163 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 02:05:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-11-20 02:05:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-20 02:05:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 02:05:08,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-11-20 02:05:08,165 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 02:05:08,165 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 02:05:08,165 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 02:05:08,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-11-20 02:05:08,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:08,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:08,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:08,166 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2019-11-20 02:05:08,166 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:08,166 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 533#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 534#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 540#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 539#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 528#L28-3 main_~i~0 := main_~k~0; 538#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2019-11-20 02:05:08,166 INFO L796 eck$LassoCheckResult]: Loop: 525#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 526#L28-3 main_~i~0 := main_~k~0; 530#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2019-11-20 02:05:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 3 times [2019-11-20 02:05:08,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808664485] [2019-11-20 02:05:08,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 58767, now seen corresponding path program 1 times [2019-11-20 02:05:08,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106590022] [2019-11-20 02:05:08,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,213 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,214 INFO L82 PathProgramCache]: Analyzing trace with hash -538152755, now seen corresponding path program 4 times [2019-11-20 02:05:08,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786305236] [2019-11-20 02:05:08,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:08,266 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:08,267 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:08,267 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:08,267 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:08,267 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:08,267 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,267 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:08,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:08,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2019-11-20 02:05:08,267 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:08,267 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:08,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,376 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:08,376 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:08,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:08,389 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Honda state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:08,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:08,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:08,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:08,407 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,414 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:08,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:08,424 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:08,588 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:08,589 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:08,589 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:08,589 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:08,589 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:08,589 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,589 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:08,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:08,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2019-11-20 02:05:08,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:08,589 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:08,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:08,660 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:08,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:08,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:08,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:08,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:08,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:08,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:08,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:08,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:08,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:08,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:08,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:08,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:08,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:08,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:08,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:08,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:08,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:08,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:08,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:08,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:08,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:08,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:08,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:08,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:08,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:08,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:08,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:08,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:08,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:08,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:08,701 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:05:08,701 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,705 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:08,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:08,705 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:08,705 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 02:05:08,707 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:08,731 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:05:08,732 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-20 02:05:08,745 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 5 states. [2019-11-20 02:05:08,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:05:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2019-11-20 02:05:08,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 02:05:08,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-20 02:05:08,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 02:05:08,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:08,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2019-11-20 02:05:08,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:08,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2019-11-20 02:05:08,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 02:05:08,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 02:05:08,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2019-11-20 02:05:08,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:08,750 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-20 02:05:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2019-11-20 02:05:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2019-11-20 02:05:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 02:05:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-20 02:05:08,755 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-20 02:05:08,755 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-20 02:05:08,755 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 02:05:08,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 35 transitions. [2019-11-20 02:05:08,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:08,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:08,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:08,757 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2019-11-20 02:05:08,757 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:08,757 INFO L794 eck$LassoCheckResult]: Stem: 640#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 635#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 636#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 637#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 651#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 647#L28-3 main_~i~0 := main_~k~0; 648#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 649#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 650#L28-3 main_~i~0 := main_~k~0; 655#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2019-11-20 02:05:08,757 INFO L796 eck$LassoCheckResult]: Loop: 641#L25-3 main_~i~0 := 1 + main_~i~0; 642#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 653#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2019-11-20 02:05:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,757 INFO L82 PathProgramCache]: Analyzing trace with hash -538152757, now seen corresponding path program 1 times [2019-11-20 02:05:08,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435146317] [2019-11-20 02:05:08,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:08,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,770 INFO L82 PathProgramCache]: Analyzing trace with hash 67693, now seen corresponding path program 3 times [2019-11-20 02:05:08,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616523515] [2019-11-20 02:05:08,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:08,774 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1004170083, now seen corresponding path program 2 times [2019-11-20 02:05:08,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:08,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912217012] [2019-11-20 02:05:08,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:08,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912217012] [2019-11-20 02:05:08,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442937996] [2019-11-20 02:05:08,813 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:05:08,849 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 02:05:08,849 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 02:05:08,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:08,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 02:05:08,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:05:08,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-20 02:05:08,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065216107] [2019-11-20 02:05:08,886 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:08,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:08,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:08,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:08,887 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:08,887 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,887 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:08,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:08,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2019-11-20 02:05:08,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:08,887 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:08,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:08,957 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:08,957 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:08,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:08,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:08,975 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:08,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:08,981 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:08,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:08,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:09,389 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:09,391 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:09,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:09,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:09,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:09,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:09,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:09,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:09,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2019-11-20 02:05:09,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:09,392 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:09,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,453 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:09,453 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:09,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:09,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:09,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:09,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:09,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:09,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:09,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:09,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:09,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:09,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:09,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:09,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:09,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:09,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:09,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:09,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:09,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:09,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:09,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:09,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:09,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:09,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:09,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:09,489 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:05:09,489 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:09,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:09,494 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:09,494 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:09,494 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 02:05:09,496 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:09,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:09,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:09,543 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:09,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:09,568 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 02:05:09,568 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16 Second operand 4 states. [2019-11-20 02:05:09,590 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 65 states and 90 transitions. Complement of second has 7 states. [2019-11-20 02:05:09,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:05:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 02:05:09,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-20 02:05:09,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:09,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-20 02:05:09,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:09,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2019-11-20 02:05:09,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:09,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 90 transitions. [2019-11-20 02:05:09,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:05:09,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 50 states and 68 transitions. [2019-11-20 02:05:09,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-20 02:05:09,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-20 02:05:09,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 68 transitions. [2019-11-20 02:05:09,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:09,598 INFO L688 BuchiCegarLoop]: Abstraction has 50 states and 68 transitions. [2019-11-20 02:05:09,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 68 transitions. [2019-11-20 02:05:09,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2019-11-20 02:05:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 02:05:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2019-11-20 02:05:09,605 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 49 transitions. [2019-11-20 02:05:09,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:05:09,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 02:05:09,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 02:05:09,606 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand 8 states. [2019-11-20 02:05:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:05:09,683 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2019-11-20 02:05:09,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:05:09,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 62 transitions. [2019-11-20 02:05:09,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2019-11-20 02:05:09,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 62 transitions. [2019-11-20 02:05:09,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2019-11-20 02:05:09,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-11-20 02:05:09,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2019-11-20 02:05:09,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:09,687 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2019-11-20 02:05:09,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2019-11-20 02:05:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 23. [2019-11-20 02:05:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 02:05:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-11-20 02:05:09,689 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-20 02:05:09,689 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-20 02:05:09,689 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 02:05:09,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2019-11-20 02:05:09,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 02:05:09,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:09,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:09,690 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:05:09,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:05:09,691 INFO L794 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 925#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 926#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 935#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 937#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 919#L28-3 main_~i~0 := main_~k~0; 938#L25-2 assume !(main_~j~0 < main_~m~0); 928#L25-3 [2019-11-20 02:05:09,691 INFO L796 eck$LassoCheckResult]: Loop: 928#L25-3 main_~i~0 := 1 + main_~i~0; 920#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 921#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 916#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 917#L28-3 main_~i~0 := main_~k~0; 933#L25-2 assume !(main_~j~0 < main_~m~0); 928#L25-3 [2019-11-20 02:05:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446527, now seen corresponding path program 2 times [2019-11-20 02:05:09,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:09,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884741368] [2019-11-20 02:05:09,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:09,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:09,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2016730719, now seen corresponding path program 1 times [2019-11-20 02:05:09,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:09,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385538210] [2019-11-20 02:05:09,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:09,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:09,708 INFO L82 PathProgramCache]: Analyzing trace with hash -504812577, now seen corresponding path program 3 times [2019-11-20 02:05:09,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:09,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446848996] [2019-11-20 02:05:09,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:09,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:09,761 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:09,761 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:09,761 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:09,761 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:09,761 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:09,761 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,761 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:09,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:09,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2019-11-20 02:05:09,762 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:09,762 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:09,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:09,851 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:09,851 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 02:05:09,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:09,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:09,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:09,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:09,886 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:09,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:09,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:21,918 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-20 02:05:21,920 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:21,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:21,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:21,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:21,921 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:21,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:21,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:21,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:21,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2019-11-20 02:05:21,921 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:21,922 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:21,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:21,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:21,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:21,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:21,993 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:21,993 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:21,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:21,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:21,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:21,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:21,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:21,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:21,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:21,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:22,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:22,014 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:05:22,014 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:22,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:22,018 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:22,018 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:22,018 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 02:05:22,020 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:22,090 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2019-11-20 02:05:22,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-11-20 02:05:22,132 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 49 states and 69 transitions. Complement of second has 7 states. [2019-11-20 02:05:22,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:22,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 02:05:22,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 02:05:22,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 02:05:22,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,133 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:05:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:22,219 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2019-11-20 02:05:22,219 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-11-20 02:05:22,303 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 56 states and 79 transitions. Complement of second has 10 states. [2019-11-20 02:05:22,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:22,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 02:05:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-11-20 02:05:22,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 02:05:22,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-20 02:05:22,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 12 letters. [2019-11-20 02:05:22,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 79 transitions. [2019-11-20 02:05:22,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:05:22,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 43 states and 60 transitions. [2019-11-20 02:05:22,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 02:05:22,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 02:05:22,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 60 transitions. [2019-11-20 02:05:22,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:05:22,309 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 60 transitions. [2019-11-20 02:05:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 60 transitions. [2019-11-20 02:05:22,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2019-11-20 02:05:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 02:05:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2019-11-20 02:05:22,312 INFO L711 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2019-11-20 02:05:22,312 INFO L591 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2019-11-20 02:05:22,312 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 02:05:22,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 52 transitions. [2019-11-20 02:05:22,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:05:22,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:05:22,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:05:22,314 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:05:22,314 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:05:22,314 INFO L794 eck$LassoCheckResult]: Stem: 1178#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 1172#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 1173#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1192#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1189#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1186#L28-3 main_~i~0 := main_~k~0; 1185#L25-2 assume !(main_~j~0 < main_~m~0); 1179#L25-3 main_~i~0 := 1 + main_~i~0; 1174#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1175#L25-2 [2019-11-20 02:05:22,314 INFO L796 eck$LassoCheckResult]: Loop: 1175#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1168#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1169#L28-3 main_~i~0 := main_~k~0; 1175#L25-2 [2019-11-20 02:05:22,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,315 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 4 times [2019-11-20 02:05:22,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:22,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020197034] [2019-11-20 02:05:22,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,326 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:22,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,326 INFO L82 PathProgramCache]: Analyzing trace with hash 51867, now seen corresponding path program 2 times [2019-11-20 02:05:22,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:22,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691387651] [2019-11-20 02:05:22,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,331 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:22,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1817399595, now seen corresponding path program 5 times [2019-11-20 02:05:22,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:05:22,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494137059] [2019-11-20 02:05:22,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:05:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:05:22,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:05:22,363 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:22,363 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:22,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:22,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:22,364 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:05:22,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:22,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:22,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2019-11-20 02:05:22,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:22,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:22,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,429 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:22,429 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:22,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:22,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:22,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:22,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:22,445 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:22,445 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:22,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:05:22,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:05:22,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0, ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~N~0=-7} Honda state: {ULTIMATE.start_main_~k~0=0, ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~N~0=-7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:05:22,460 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:22,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:05:22,474 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,624 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:05:22,625 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:05:22,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:05:22,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:05:22,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:05:22,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:05:22,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:05:22,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:05:22,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2019-11-20 02:05:22,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:05:22,626 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:05:22,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:05:22,708 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:05:22,708 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:22,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:22,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:22,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:22,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:22,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:05:22,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:05:22,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:05:22,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:22,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:22,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:22,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:22,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:22,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:22,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:22,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:05:22,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:05:22,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:05:22,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:05:22,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:05:22,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:05:22,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:05:22,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:05:22,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:05:22,739 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:05:22,739 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3fe4445-378c-4a29-b12b-a3c7b78da937/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:05:22,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:05:22,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:05:22,744 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:05:22,744 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 02:05:22,745 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:05:22,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:22,778 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:05:22,778 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-11-20 02:05:22,785 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 55 states and 81 transitions. Complement of second has 5 states. [2019-11-20 02:05:22,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:05:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-11-20 02:05:22,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 02:05:22,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,788 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:05:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:22,824 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:05:22,824 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-11-20 02:05:22,836 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 51 states and 75 transitions. Complement of second has 7 states. [2019-11-20 02:05:22,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:05:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2019-11-20 02:05:22,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 02:05:22,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,839 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:05:22,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:05:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:05:22,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:05:22,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:05:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:05:22,883 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:05:22,884 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-11-20 02:05:22,894 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 69 states and 104 transitions. Complement of second has 4 states. [2019-11-20 02:05:22,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:05:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:05:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2019-11-20 02:05:22,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 02:05:22,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 02:05:22,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 02:05:22,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:05:22,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 104 transitions. [2019-11-20 02:05:22,899 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:05:22,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 0 states and 0 transitions. [2019-11-20 02:05:22,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:05:22,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:05:22,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:05:22,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:05:22,899 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:05:22,899 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:05:22,899 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:05:22,899 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 02:05:22,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:05:22,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:05:22,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:05:22,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:05:22 BoogieIcfgContainer [2019-11-20 02:05:22,909 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:05:22,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:05:22,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:05:22,911 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:05:22,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:05:04" (3/4) ... [2019-11-20 02:05:22,914 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:05:22,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:05:22,918 INFO L168 Benchmark]: Toolchain (without parser) took 18767.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -86.5 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:05:22,920 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 02:05:22,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -210.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:05:22,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.84 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. [2019-11-20 02:05:22,921 INFO L168 Benchmark]: Boogie Preprocessor took 30.02 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:05:22,922 INFO L168 Benchmark]: RCFGBuilder took 223.43 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:05:22,922 INFO L168 Benchmark]: BuchiAutomizer took 18158.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 139.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:05:22,922 INFO L168 Benchmark]: Witness Printer took 4.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:05:22,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 312.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -210.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.84 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. * Boogie Preprocessor took 30.02 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.43 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 18158.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 139.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 10 terminating modules (2 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * i and consists of 6 locations. One nondeterministic module has affine ranking function -1 * k + N and consists of 4 locations. One nondeterministic module has affine ranking function m + -1 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.1s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 16.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 7. Nontrivial modules had stage [5, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 167 SDtfs, 164 SDslu, 80 SDs, 0 SdLazy, 161 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf97 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...