./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:58,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:58,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:58,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:58,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:58,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:58,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:58,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:58,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:58,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:58,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:58,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:58,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:58,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:58,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:58,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:58,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:58,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:58,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:58,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:58,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:58,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:58,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:58,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:58,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:58,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:58,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:58,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:58,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:58,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:58,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:58,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:58,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:58,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:58,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:58,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:58,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:58,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:58,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:58,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:58,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:58,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:57:58,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:58,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:58,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:58,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:58,118 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:58,118 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:58,118 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:58,118 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:58,118 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:58,119 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:58,119 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:58,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:58,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:58,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:58,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:58,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:58,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:58,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:58,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:58,124 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:58,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:58,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:58,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:58,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:58,125 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:58,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:58,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:58,126 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:58,127 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:58,127 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/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2019-10-22 08:57:58,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:58,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:58,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:58,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:58,180 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:58,180 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-10-22 08:57:58,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/data/8375a1cf7/f1dc1f149a5b4cedbd83004fbeabe872/FLAG758cfc875 [2019-10-22 08:57:58,647 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:58,648 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-10-22 08:57:58,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/data/8375a1cf7/f1dc1f149a5b4cedbd83004fbeabe872/FLAG758cfc875 [2019-10-22 08:57:58,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/data/8375a1cf7/f1dc1f149a5b4cedbd83004fbeabe872 [2019-10-22 08:57:58,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:58,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:58,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:58,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:58,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:58,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:58,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377ddfcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58, skipping insertion in model container [2019-10-22 08:57:58,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:58,682 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:58,697 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:58,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:58,848 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:58,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:58,983 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:58,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58 WrapperNode [2019-10-22 08:57:58,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:58,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:58,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:58,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:58,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:59,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:59,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:59,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:59,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... [2019-10-22 08:57:59,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:59,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:59,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:59,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:59,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 [2019-10-22 08:57:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:59,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:59,297 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:59,298 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:57:59,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:59 BoogieIcfgContainer [2019-10-22 08:57:59,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:59,300 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:59,300 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:59,304 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:59,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:59,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:58" (1/3) ... [2019-10-22 08:57:59,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3036720e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:59, skipping insertion in model container [2019-10-22 08:57:59,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:59,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:58" (2/3) ... [2019-10-22 08:57:59,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3036720e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:59, skipping insertion in model container [2019-10-22 08:57:59,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:59,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:59" (3/3) ... [2019-10-22 08:57:59,310 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-10-22 08:57:59,356 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:59,357 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:59,357 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:59,357 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:59,357 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:59,357 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:59,357 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:59,358 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:59,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:57:59,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:59,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:59,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:59,409 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:59,409 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:59,409 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:59,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:57:59,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:59,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:59,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:59,411 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:59,411 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:59,418 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2019-10-22 08:57:59,418 INFO L793 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2019-10-22 08:57:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-10-22 08:57:59,429 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:59,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585904080] [2019-10-22 08:57:59,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,500 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:59,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-10-22 08:57:59,501 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:59,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430930004] [2019-10-22 08:57:59,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,510 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:59,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:59,512 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-10-22 08:57:59,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:59,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772922456] [2019-10-22 08:57:59,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:59,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:59,527 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:59,566 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:59,567 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:59,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:59,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:59,567 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:57:59,568 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,568 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:59,568 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:59,568 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-10-22 08:57:59,568 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:59,569 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:59,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,681 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:59,682 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:59,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:59,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:59,714 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/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:59,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:59,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:59,738 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/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:59,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:59,750 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:59,750 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:59,756 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:57:59,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:59,874 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:57:59,875 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:59,875 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:59,875 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:59,876 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:59,876 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:59,876 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:59,876 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:59,876 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:59,876 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-10-22 08:57:59,877 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:59,877 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:59,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:59,998 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:00,003 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:00,006 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 [2019-10-22 08:58:00,008 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,010 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:00,011 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,011 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,011 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,013 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:00,014 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:00,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:00,017 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 [2019-10-22 08:58:00,018 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,018 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,018 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,019 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,022 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:00,022 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:00,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:00,028 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 [2019-10-22 08:58:00,029 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,029 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,029 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,029 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,037 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:00,037 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:00,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:00,050 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 [2019-10-22 08:58:00,051 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,051 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:00,051 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,051 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,051 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,052 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:00,052 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:00,058 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:00,063 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:00,064 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:00,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:00,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:00,066 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:00,067 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-10-22 08:58:00,070 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:00,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,123 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:00,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:00,141 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 [2019-10-22 08:58:00,142 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-10-22 08:58:00,179 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2019-10-22 08:58:00,179 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 [2019-10-22 08:58:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-10-22 08:58:00,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2019-10-22 08:58:00,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:58:00,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 08:58:00,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-10-22 08:58:00,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:00,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2019-10-22 08:58:00,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-10-22 08:58:00,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-10-22 08:58:00,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-10-22 08:58:00,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:00,195 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-10-22 08:58:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-10-22 08:58:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 08:58:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:58:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-10-22 08:58:00,222 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-10-22 08:58:00,222 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-10-22 08:58:00,222 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:00,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2019-10-22 08:58:00,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:00,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:00,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:00,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:58:00,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:00,224 INFO L791 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2019-10-22 08:58:00,224 INFO L793 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2019-10-22 08:58:00,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2019-10-22 08:58:00,225 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:00,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172717705] [2019-10-22 08:58:00,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:00,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172717705] [2019-10-22 08:58:00,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:00,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:00,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972410863] [2019-10-22 08:58:00,263 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:58:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2019-10-22 08:58:00,264 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:00,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719384499] [2019-10-22 08:58:00,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:00,271 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:00,287 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:00,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:00,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:00,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:00,287 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:00,288 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,288 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:00,288 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:00,288 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-10-22 08:58:00,288 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:00,288 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:00,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:00,348 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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) [2019-10-22 08:58:00,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:00,353 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,358 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:00,358 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/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 [2019-10-22 08:58:00,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:00,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:00,377 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:00,377 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/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 [2019-10-22 08:58:00,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:00,382 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:00,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:00,499 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:00,501 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:00,501 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:00,502 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:00,502 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:00,502 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:00,502 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,502 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:00,502 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:00,502 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-10-22 08:58:00,502 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:00,502 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:00,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,555 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:00,556 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:00,556 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 [2019-10-22 08:58:00,557 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,557 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,557 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,557 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,559 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:00,559 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:00,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:00,563 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 [2019-10-22 08:58:00,563 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,564 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,564 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,564 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,565 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:00,566 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:00,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:00,571 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 [2019-10-22 08:58:00,571 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:00,572 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:00,572 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:00,572 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:00,572 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:00,572 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:00,573 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:00,576 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:00,580 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:00,580 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:00,581 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:00,581 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:00,581 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:00,581 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-10-22 08:58:00,582 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:00,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:00,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,608 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:00,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:00,609 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 [2019-10-22 08:58:00,609 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-10-22 08:58:00,617 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2019-10-22 08:58:00,618 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 [2019-10-22 08:58:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-10-22 08:58:00,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:58:00,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:58:00,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2019-10-22 08:58:00,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:00,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-10-22 08:58:00,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:00,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2019-10-22 08:58:00,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-10-22 08:58:00,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 08:58:00,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2019-10-22 08:58:00,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:00,622 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-10-22 08:58:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2019-10-22 08:58:00,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-22 08:58:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 08:58:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-10-22 08:58:00,624 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-10-22 08:58:00,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:00,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:00,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:00,628 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2019-10-22 08:58:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:00,638 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-10-22 08:58:00,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:00,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-10-22 08:58:00,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:00,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2019-10-22 08:58:00,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-10-22 08:58:00,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 08:58:00,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-10-22 08:58:00,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:00,644 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-10-22 08:58:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-10-22 08:58:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-10-22 08:58:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 08:58:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-10-22 08:58:00,646 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-10-22 08:58:00,646 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-10-22 08:58:00,647 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:00,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-10-22 08:58:00,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:00,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:00,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:00,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2019-10-22 08:58:00,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:00,649 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2019-10-22 08:58:00,649 INFO L793 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2019-10-22 08:58:00,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,649 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2019-10-22 08:58:00,650 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:00,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446067975] [2019-10-22 08:58:00,650 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,650 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:00,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446067975] [2019-10-22 08:58:00,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928088429] [2019-10-22 08:58:00,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:00,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 08:58:00,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:00,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:00,751 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2019-10-22 08:58:00,751 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126656924] [2019-10-22 08:58:00,751 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:58:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:00,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2019-10-22 08:58:00,752 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:00,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614576146] [2019-10-22 08:58:00,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:00,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:00,774 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:00,788 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:00,789 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:00,789 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:00,789 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:00,789 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:00,789 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,789 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:00,789 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:00,789 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-10-22 08:58:00,790 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:00,790 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:00,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:00,847 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:00,847 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:00,853 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:00,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:00,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:01,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:01,019 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:01,019 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:01,020 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:01,020 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:01,020 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:01,020 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:01,020 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:01,020 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:01,021 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-10-22 08:58:01,021 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:01,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:01,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,102 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:01,102 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:01,103 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 [2019-10-22 08:58:01,103 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:01,104 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:01,104 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:01,104 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:01,104 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:01,105 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:01,105 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:01,109 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:01,128 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:58:01,128 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:01,129 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:01,129 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:01,129 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:01,129 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-10-22 08:58:01,130 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:01,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,165 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:01,166 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 [2019-10-22 08:58:01,166 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:58:01,176 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-10-22 08:58:01,178 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 [2019-10-22 08:58:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-10-22 08:58:01,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 08:58:01,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,179 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:58:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,223 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:01,224 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 [2019-10-22 08:58:01,224 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:58:01,234 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-10-22 08:58:01,238 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 [2019-10-22 08:58:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-10-22 08:58:01,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 08:58:01,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,239 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:58:01,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,280 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:01,281 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 [2019-10-22 08:58:01,282 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:58:01,290 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2019-10-22 08:58:01,290 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 [2019-10-22 08:58:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:01,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-10-22 08:58:01,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 08:58:01,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2019-10-22 08:58:01,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2019-10-22 08:58:01,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-10-22 08:58:01,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:01,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2019-10-22 08:58:01,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 08:58:01,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 08:58:01,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-10-22 08:58:01,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:01,295 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-10-22 08:58:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-10-22 08:58:01,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2019-10-22 08:58:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:58:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-10-22 08:58:01,297 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-10-22 08:58:01,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:01,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:01,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:01,298 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2019-10-22 08:58:01,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:01,307 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-10-22 08:58:01,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:01,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-10-22 08:58:01,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-10-22 08:58:01,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2019-10-22 08:58:01,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-10-22 08:58:01,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 08:58:01,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2019-10-22 08:58:01,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:01,309 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-10-22 08:58:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2019-10-22 08:58:01,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2019-10-22 08:58:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-10-22 08:58:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-10-22 08:58:01,310 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-10-22 08:58:01,310 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-10-22 08:58:01,310 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:58:01,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2019-10-22 08:58:01,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:01,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:01,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:01,311 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:58:01,311 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-10-22 08:58:01,311 INFO L791 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2019-10-22 08:58:01,312 INFO L793 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2019-10-22 08:58:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,312 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2019-10-22 08:58:01,312 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:01,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025688270] [2019-10-22 08:58:01,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,320 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2019-10-22 08:58:01,321 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:01,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334275040] [2019-10-22 08:58:01,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,329 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2019-10-22 08:58:01,330 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:01,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834994078] [2019-10-22 08:58:01,330 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,330 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:01,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:01,340 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:01,374 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:01,374 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:01,374 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:01,374 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:01,374 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:01,375 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:01,375 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:01,375 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:01,375 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-10-22 08:58:01,375 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:01,375 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:01,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,447 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:01,448 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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 [2019-10-22 08:58:01,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:01,454 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d55e4ecc-c869-4b3b-a6ca-db5862e65ce4/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) [2019-10-22 08:58:01,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:01,467 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:01,572 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:01,574 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:01,574 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:01,574 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:01,574 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:01,574 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:01,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:01,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:01,575 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:01,575 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-10-22 08:58:01,575 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:01,575 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:01,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:01,639 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:01,639 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:01,640 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 [2019-10-22 08:58:01,640 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:01,640 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:01,641 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:01,641 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:01,641 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:01,641 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:01,641 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:01,645 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:01,648 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:58:01,648 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:01,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:01,649 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:01,649 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:01,649 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 [] [2019-10-22 08:58:01,649 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:01,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:01,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:01,685 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 [2019-10-22 08:58:01,686 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2019-10-22 08:58:01,695 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2019-10-22 08:58:01,695 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 [2019-10-22 08:58:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:58:01,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 08:58:01,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2019-10-22 08:58:01,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2019-10-22 08:58:01,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:01,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-10-22 08:58:01,698 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:01,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-10-22 08:58:01,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:58:01,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:58:01,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:58:01,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:01,698 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:01,699 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:01,699 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:01,699 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 08:58:01,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:01,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:01,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:58:01,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:01 BoogieIcfgContainer [2019-10-22 08:58:01,706 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:01,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:01,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:01,707 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:01,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:59" (3/4) ... [2019-10-22 08:58:01,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:01,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:01,713 INFO L168 Benchmark]: Toolchain (without parser) took 3045.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 944.7 MB in the beginning and 888.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 237.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:01,714 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-10-22 08:58:01,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -231.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:01,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.22 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:01,716 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 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. [2019-10-22 08:58:01,716 INFO L168 Benchmark]: RCFGBuilder took 256.67 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: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:01,717 INFO L168 Benchmark]: BuchiAutomizer took 2406.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 888.7 MB in the end (delta: 267.9 MB). Peak memory consumption was 267.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:01,717 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 888.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:01,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 316.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -231.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.22 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 256.67 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: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2406.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 888.7 MB in the end (delta: 267.9 MB). Peak memory consumption was 267.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 888.7 MB. 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...