./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum04-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aeade23d65797ff650f62ff8e383f015764d9ed2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:43:19,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:43:19,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:43:19,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:43:19,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:43:19,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:43:19,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:43:19,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:43:19,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:43:19,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:43:19,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:43:19,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:43:19,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:43:19,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:43:19,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:43:19,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:43:19,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:43:19,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:43:19,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:43:19,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:43:19,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:43:19,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:43:19,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:43:19,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:43:19,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:43:19,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:43:19,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:43:19,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:43:19,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:43:19,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:43:19,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:43:19,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:43:19,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:43:19,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:43:19,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:43:19,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:43:19,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:43:19,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:43:19,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:43:19,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:43:19,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:43:19,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:43:19,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:43:19,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:43:19,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:43:19,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:43:19,536 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:43:19,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:43:19,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:43:19,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:43:19,538 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:43:19,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:43:19,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:43:19,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:43:19,539 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:43:19,539 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:43:19,540 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeade23d65797ff650f62ff8e383f015764d9ed2 [2019-12-07 18:43:19,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:43:19,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:43:19,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:43:19,652 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:43:19,652 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:43:19,653 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/../../sv-benchmarks/c/loops/sum04-1.i [2019-12-07 18:43:19,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/data/e5684647c/464c303feef9466ca6a85ca6bb9b3ca8/FLAGd684cd7aa [2019-12-07 18:43:20,029 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:43:20,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/sv-benchmarks/c/loops/sum04-1.i [2019-12-07 18:43:20,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/data/e5684647c/464c303feef9466ca6a85ca6bb9b3ca8/FLAGd684cd7aa [2019-12-07 18:43:20,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/data/e5684647c/464c303feef9466ca6a85ca6bb9b3ca8 [2019-12-07 18:43:20,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:43:20,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:43:20,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:20,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:43:20,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:43:20,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b93d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20, skipping insertion in model container [2019-12-07 18:43:20,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:43:20,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:43:20,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:20,163 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:43:20,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:20,215 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:43:20,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20 WrapperNode [2019-12-07 18:43:20,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:20,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:20,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:43:20,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:43:20,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:20,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:43:20,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:43:20,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:43:20,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... [2019-12-07 18:43:20,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:43:20,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:43:20,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:43:20,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:43:20,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:43:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:43:20,374 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:43:20,375 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:43:20,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:20 BoogieIcfgContainer [2019-12-07 18:43:20,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:43:20,376 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:43:20,376 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:43:20,378 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:43:20,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:43:20,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:43:20" (1/3) ... [2019-12-07 18:43:20,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1069648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:43:20, skipping insertion in model container [2019-12-07 18:43:20,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:43:20,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:20" (2/3) ... [2019-12-07 18:43:20,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1069648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:43:20, skipping insertion in model container [2019-12-07 18:43:20,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:43:20,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:20" (3/3) ... [2019-12-07 18:43:20,381 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2019-12-07 18:43:20,410 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:43:20,410 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:43:20,410 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:43:20,411 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:43:20,411 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:43:20,411 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:43:20,411 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:43:20,411 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:43:20,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 18:43:20,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:43:20,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:43:20,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:43:20,436 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:43:20,437 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:43:20,437 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:43:20,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 18:43:20,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:43:20,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:43:20,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:43:20,438 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:43:20,438 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:43:20,443 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~post0, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 3#L13-3true [2019-12-07 18:43:20,443 INFO L796 eck$LassoCheckResult]: Loop: 3#L13-3true assume !!(main_~i~0 <= 8); 10#L14true assume main_~i~0 < 4;main_~sn~0 := 2 + main_~sn~0; 6#L13-2true main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 3#L13-3true [2019-12-07 18:43:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:43:20,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801573108] [2019-12-07 18:43:20,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,515 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:20,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash 38828, now seen corresponding path program 1 times [2019-12-07 18:43:20,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087270166] [2019-12-07 18:43:20,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash 962349, now seen corresponding path program 1 times [2019-12-07 18:43:20,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427319440] [2019-12-07 18:43:20,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,538 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:20,577 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:43:20,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:43:20,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:43:20,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:43:20,578 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:43:20,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:43:20,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:43:20,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2019-12-07 18:43:20,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:43:20,579 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:43:20,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,640 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:43:20,641 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:43:20,645 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:43:20,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:43:20,669 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:43:20,670 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=5}, {ULTIMATE.start_main_~sn~0=4}, {ULTIMATE.start_main_~sn~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:43:20,673 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:43:20,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:43:20,686 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:43:20,687 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:43:20,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:43:20,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:43:20,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:43:20,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:43:20,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:43:20,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:43:20,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2019-12-07 18:43:20,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:43:20,688 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:43:20,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:43:20,725 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,729 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 [2019-12-07 18:43:20,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:43:20,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:43:20,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:43:20,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:43:20,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:43:20,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:43:20,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:43:20,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,740 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 [2019-12-07 18:43:20,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:43:20,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:43:20,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:43:20,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:43:20,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:43:20,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:43:20,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:43:20,744 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:43:20,747 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:43:20,747 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:43:20,750 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:43:20,751 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:43:20,751 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2019-12-07 18:43:20,754 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:43:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:20,782 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:43:20,783 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:20,789 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:43:20,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:20,810 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 [2019-12-07 18:43:20,811 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-12-07 18:43:20,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 31 states and 43 transitions. Complement of second has 7 states. [2019-12-07 18:43:20,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:43:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:43:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-12-07 18:43:20,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 18:43:20,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:20,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 18:43:20,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:20,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 18:43:20,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:20,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 43 transitions. [2019-12-07 18:43:20,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:43:20,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2019-12-07 18:43:20,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 18:43:20,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 18:43:20,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-12-07 18:43:20,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:43:20,861 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 18:43:20,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-12-07 18:43:20,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 18:43:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 18:43:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 18:43:20,878 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 18:43:20,878 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 18:43:20,879 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:43:20,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-12-07 18:43:20,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:43:20,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:43:20,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:43:20,879 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:43:20,879 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:43:20,880 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~post0, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 85#L13-3 assume !!(main_~i~0 <= 8); 81#L14 [2019-12-07 18:43:20,880 INFO L796 eck$LassoCheckResult]: Loop: 81#L14 assume !(main_~i~0 < 4); 86#L13-2 main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 80#L13-3 assume !!(main_~i~0 <= 8); 81#L14 [2019-12-07 18:43:20,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1001, now seen corresponding path program 1 times [2019-12-07 18:43:20,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121494330] [2019-12-07 18:43:20,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,885 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:20,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,885 INFO L82 PathProgramCache]: Analyzing trace with hash 43750, now seen corresponding path program 1 times [2019-12-07 18:43:20,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820054270] [2019-12-07 18:43:20,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:20,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:20,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:20,892 INFO L82 PathProgramCache]: Analyzing trace with hash 29834750, now seen corresponding path program 1 times [2019-12-07 18:43:20,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:20,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962153924] [2019-12-07 18:43:20,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:20,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962153924] [2019-12-07 18:43:20,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:20,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:43:20,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394967965] [2019-12-07 18:43:20,928 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:43:20,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:43:20,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:43:20,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:43:20,929 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:43:20,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:43:20,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:43:20,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2019-12-07 18:43:20,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:43:20,929 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:43:20,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:43:20,953 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:43:20,956 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:20,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:43:20,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:43:20,970 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:43:20,971 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:43:20,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:43:20,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:43:20,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:43:20,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:43:20,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:43:20,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:43:20,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2019-12-07 18:43:20,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:43:20,972 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:43:20,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:43:20,993 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:43:20,993 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:43:20,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:43:20,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:43:20,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:43:20,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:43:20,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:43:20,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:43:20,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:43:20,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:43:21,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:43:21,003 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:43:21,003 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_521a3a63-531b-428b-b71c-8a3bbbd8c47f/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 [2019-12-07 18:43:21,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:43:21,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:43:21,013 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:43:21,013 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 15 Supporting invariants [] [2019-12-07 18:43:21,015 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:43:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:21,028 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:43:21,028 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:21,031 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:43:21,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:21,047 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 [2019-12-07 18:43:21,048 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 18:43:21,064 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 21 transitions. Complement of second has 6 states. [2019-12-07 18:43:21,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:43:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:43:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-12-07 18:43:21,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 18:43:21,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:21,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 18:43:21,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:21,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 18:43:21,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:43:21,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2019-12-07 18:43:21,066 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:43:21,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2019-12-07 18:43:21,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:43:21,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:43:21,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:43:21,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:43:21,067 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:21,067 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:21,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:43:21,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:43:21,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:43:21,069 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-12-07 18:43:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:21,071 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 18:43:21,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:43:21,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:43:21,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:43:21,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:43:21,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:43:21,072 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:43:21,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:43:21,072 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:43:21,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:43:21,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:43:21 BoogieIcfgContainer [2019-12-07 18:43:21,077 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:43:21,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:43:21,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:43:21,077 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:43:21,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:20" (3/4) ... [2019-12-07 18:43:21,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:43:21,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:43:21,082 INFO L168 Benchmark]: Toolchain (without parser) took 1036.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 945.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 90.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:21,082 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:21,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:21,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:21,084 INFO L168 Benchmark]: Boogie Preprocessor took 11.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:21,084 INFO L168 Benchmark]: RCFGBuilder took 128.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:21,085 INFO L168 Benchmark]: BuchiAutomizer took 700.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 945.0 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:21,085 INFO L168 Benchmark]: Witness Printer took 3.39 ms. Allocated memory is still 1.1 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:21,088 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 128.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 700.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 945.0 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.39 ms. Allocated memory is still 1.1 GB. Free memory is still 945.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 7 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 11 SDslu, 10 SDs, 0 SdLazy, 23 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf96 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...