./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:01:00,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:01:00,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:01:00,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:01:00,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:01:00,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:01:00,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:01:00,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:01:00,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:01:00,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:01:00,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:01:00,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:01:00,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:01:00,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:01:00,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:01:00,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:01:00,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:01:00,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:01:00,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:01:00,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:01:00,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:01:00,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:01:00,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:01:00,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:01:00,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:01:00,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:01:00,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:01:00,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:01:00,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:01:00,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:01:00,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:01:00,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:01:00,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:01:00,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:01:00,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:01:00,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:01:00,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:01:00,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:01:00,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:01:00,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:01:00,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:01:00,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 19:01:00,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:01:00,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:01:00,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 19:01:00,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 19:01:00,388 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 19:01:00,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 19:01:00,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 19:01:00,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:01:00,390 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 19:01:00,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:01:00,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 19:01:00,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:01:00,391 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 19:01:00,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 19:01:00,391 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_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2019-12-07 19:01:00,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:01:00,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:01:00,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:01:00,502 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:01:00,503 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:01:00,503 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-12-07 19:01:00,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/data/aa66ad7a7/4b10f61178c4466fb07ef446620fd576/FLAG91f1ca323 [2019-12-07 19:01:00,870 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:01:00,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-12-07 19:01:00,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/data/aa66ad7a7/4b10f61178c4466fb07ef446620fd576/FLAG91f1ca323 [2019-12-07 19:01:00,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/data/aa66ad7a7/4b10f61178c4466fb07ef446620fd576 [2019-12-07 19:01:00,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:01:00,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:01:00,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:01:00,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:01:00,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:01:00,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:01:00" (1/1) ... [2019-12-07 19:01:00,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c2a685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:00, skipping insertion in model container [2019-12-07 19:01:00,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:01:00" (1/1) ... [2019-12-07 19:01:00,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:01:00,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:01:00,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:01:01,002 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:01:01,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:01:01,055 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:01:01,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01 WrapperNode [2019-12-07 19:01:01,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:01:01,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:01:01,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:01:01,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:01:01,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:01:01,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:01:01,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:01:01,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:01:01,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... [2019-12-07 19:01:01,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:01:01,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:01:01,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:01:01,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:01:01,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:01:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:01:01,229 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:01:01,229 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 19:01:01,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:01:01 BoogieIcfgContainer [2019-12-07 19:01:01,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:01:01,231 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 19:01:01,231 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 19:01:01,234 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 19:01:01,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 19:01:01,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 07:01:00" (1/3) ... [2019-12-07 19:01:01,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@480c7358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 07:01:01, skipping insertion in model container [2019-12-07 19:01:01,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 19:01:01,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:01:01" (2/3) ... [2019-12-07 19:01:01,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@480c7358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 07:01:01, skipping insertion in model container [2019-12-07 19:01:01,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 19:01:01,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:01:01" (3/3) ... [2019-12-07 19:01:01,237 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2019-12-07 19:01:01,271 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 19:01:01,271 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 19:01:01,271 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 19:01:01,271 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:01:01,271 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:01:01,271 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 19:01:01,271 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:01:01,271 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 19:01:01,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 19:01:01,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 19:01:01,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 19:01:01,301 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 19:01:01,301 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 19:01:01,301 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 19:01:01,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 19:01:01,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 19:01:01,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 19:01:01,302 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 19:01:01,302 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 19:01:01,307 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2019-12-07 19:01:01,308 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2019-12-07 19:01:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,312 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 19:01:01,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758514611] [2019-12-07 19:01:01,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-12-07 19:01:01,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239667041] [2019-12-07 19:01:01,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,392 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-12-07 19:01:01,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140585516] [2019-12-07 19:01:01,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:01,435 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:01,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:01,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:01,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:01,436 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 19:01:01,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:01,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:01,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:01,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-12-07 19:01:01,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:01,437 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:01,451 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 19:01:01,458 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 19:01:01,462 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 19:01:01,513 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:01,513 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:01,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:01,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 19:01:01,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:01,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:01,535 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 19:01:01,535 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:01,539 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 19:01:01,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:01,563 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 19:01:01,564 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:01,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:01,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:01,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:01,564 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 19:01:01,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:01,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:01,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:01,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-12-07 19:01:01,565 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:01,565 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:01,566 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 19:01:01,569 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 19:01:01,575 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 19:01:01,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:01,610 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,614 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 19:01:01,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:01,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:01,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:01,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:01,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:01,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 19:01:01,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,629 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 19:01:01,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:01,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:01,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:01,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:01,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:01,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 19:01:01,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:01,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 19:01:01,639 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 19:01:01,639 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_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 19:01:01,644 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 19:01:01,644 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 19:01:01,644 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-12-07 19:01:01,647 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 19:01:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,674 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:01:01,675 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,681 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:01:01,681 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:01,684 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 19:01:01,694 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 [2019-12-07 19:01:01,695 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-12-07 19:01:01,726 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-12-07 19:01:01,726 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 [2019-12-07 19:01:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 19:01:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-12-07 19:01:01,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 19:01:01,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 19:01:01,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 19:01:01,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 19:01:01,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 19:01:01,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 19:01:01,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 19:01:01,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 19:01:01,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 19:01:01,738 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 19:01:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 19:01:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 19:01:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 19:01:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 19:01:01,754 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 19:01:01,754 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 19:01:01,754 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 19:01:01,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 19:01:01,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 19:01:01,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 19:01:01,755 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 19:01:01,755 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 19:01:01,755 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2019-12-07 19:01:01,755 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2019-12-07 19:01:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,756 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-12-07 19:01:01,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110680624] [2019-12-07 19:01:01,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:01:01,778 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110680624] [2019-12-07 19:01:01,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:01:01,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 19:01:01,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093399016] [2019-12-07 19:01:01,782 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 19:01:01,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-12-07 19:01:01,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317303855] [2019-12-07 19:01:01,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:01,798 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:01,799 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:01,799 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:01,799 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:01,799 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 19:01:01,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:01,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:01,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:01,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-12-07 19:01:01,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:01,799 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:01,800 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 19:01:01,806 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 19:01:01,811 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 19:01:01,835 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:01,835 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:01,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:01,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 19:01:01,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:01,845 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 19:01:01,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:01,866 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 19:01:01,868 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:01,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:01,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:01,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:01,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 19:01:01,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:01,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:01,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:01,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-12-07 19:01:01,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:01,869 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:01,870 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 19:01:01,875 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 19:01:01,877 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 19:01:01,901 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:01,901 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 19:01:01,904 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 19:01:01,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:01,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:01,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:01,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:01,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:01,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 19:01:01,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:01,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 19:01:01,911 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 19:01:01,911 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_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 [2019-12-07 19:01:01,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 19:01:01,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 19:01:01,913 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 19:01:01,913 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-12-07 19:01:01,915 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 19:01:01,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,929 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:01:01,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,932 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:01:01,932 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:01,933 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 19:01:01,933 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 [2019-12-07 19:01:01,933 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 19:01:01,941 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-12-07 19:01:01,941 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 [2019-12-07 19:01:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 19:01:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 19:01:01,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 19:01:01,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 19:01:01,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-12-07 19:01:01,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:01,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-12-07 19:01:01,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 19:01:01,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 19:01:01,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 19:01:01,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-12-07 19:01:01,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 19:01:01,944 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 19:01:01,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-12-07 19:01:01,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 19:01:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 19:01:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 19:01:01,945 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 19:01:01,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 19:01:01,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:01:01,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:01:01,948 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2019-12-07 19:01:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:01:01,956 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-12-07 19:01:01,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:01:01,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2019-12-07 19:01:01,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2019-12-07 19:01:01,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-12-07 19:01:01,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 19:01:01,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-12-07 19:01:01,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 19:01:01,958 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-12-07 19:01:01,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-12-07 19:01:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 19:01:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 19:01:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-12-07 19:01:01,960 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 19:01:01,960 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 19:01:01,960 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 19:01:01,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-12-07 19:01:01,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 19:01:01,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 19:01:01,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 19:01:01,961 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2019-12-07 19:01:01,961 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 19:01:01,961 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2019-12-07 19:01:01,961 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2019-12-07 19:01:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2019-12-07 19:01:01,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278757392] [2019-12-07 19:01:01,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 19:01:01,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278757392] [2019-12-07 19:01:01,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:01:01,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:01:01,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673186933] [2019-12-07 19:01:01,975 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 19:01:01,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:01,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-12-07 19:01:01,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:01,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095794080] [2019-12-07 19:01:01,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:01,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:01,988 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:01,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:01,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:01,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:01,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 19:01:01,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:01,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:01,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:01,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-12-07 19:01:01,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:01,989 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:01,990 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 19:01:01,992 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 19:01:01,996 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 19:01:02,019 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:02,019 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/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 [2019-12-07 19:01:02,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:02,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:02,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 19:01:02,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:02,033 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 19:01:02,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:02,062 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 19:01:02,064 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:02,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:02,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:02,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:02,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 19:01:02,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:02,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:02,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-12-07 19:01:02,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:02,065 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:02,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 19:01:02,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 19:01:02,074 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 19:01:02,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:02,103 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,106 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 19:01:02,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:02,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 19:01:02,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,117 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 19:01:02,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 19:01:02,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,121 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 19:01:02,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 19:01:02,123 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_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,129 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 19:01:02,129 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 19:01:02,129 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 19:01:02,129 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-12-07 19:01:02,130 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 19:01:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,147 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,147 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,150 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,150 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,151 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 19:01:02,151 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 [2019-12-07 19:01:02,151 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-12-07 19:01:02,158 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-12-07 19:01:02,158 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 [2019-12-07 19:01:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 19:01:02,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 19:01:02,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 19:01:02,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:02,159 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 19:01:02,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,173 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,173 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,176 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,177 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 19:01:02,177 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 [2019-12-07 19:01:02,177 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-12-07 19:01:02,184 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-12-07 19:01:02,184 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 [2019-12-07 19:01:02,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 19:01:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 19:01:02,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 19:01:02,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:02,185 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 19:01:02,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,197 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:01:02,200 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:01:02,200 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:01:02,201 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 19:01:02,201 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 [2019-12-07 19:01:02,201 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-12-07 19:01:02,208 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2019-12-07 19:01:02,208 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 [2019-12-07 19:01:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 19:01:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-12-07 19:01:02,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 19:01:02,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:02,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 19:01:02,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:02,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 19:01:02,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 19:01:02,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2019-12-07 19:01:02,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 19:01:02,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2019-12-07 19:01:02,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 19:01:02,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 19:01:02,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-12-07 19:01:02,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 19:01:02,211 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-12-07 19:01:02,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-12-07 19:01:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2019-12-07 19:01:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 19:01:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-12-07 19:01:02,213 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 19:01:02,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 19:01:02,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:01:02,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:01:02,213 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2019-12-07 19:01:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:01:02,220 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-12-07 19:01:02,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:01:02,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-12-07 19:01:02,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 19:01:02,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2019-12-07 19:01:02,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 19:01:02,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 19:01:02,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-12-07 19:01:02,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 19:01:02,222 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-12-07 19:01:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-12-07 19:01:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2019-12-07 19:01:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 19:01:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-12-07 19:01:02,223 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-12-07 19:01:02,223 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-12-07 19:01:02,223 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 19:01:02,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-12-07 19:01:02,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 19:01:02,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 19:01:02,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 19:01:02,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 19:01:02,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-12-07 19:01:02,224 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2019-12-07 19:01:02,224 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-12-07 19:01:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,224 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-12-07 19:01:02,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971830799] [2019-12-07 19:01:02,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2019-12-07 19:01:02,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568247820] [2019-12-07 19:01:02,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,233 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,233 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2019-12-07 19:01:02,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468917021] [2019-12-07 19:01:02,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,239 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,259 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:02,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:02,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:02,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:02,259 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 19:01:02,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:02,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:02,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-12-07 19:01:02,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:02,260 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:02,261 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 19:01:02,268 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 19:01:02,270 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 19:01:02,271 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 19:01:02,305 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:02,306 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 19:01:02,308 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 19:01:02,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 19:01:02,320 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 19:01:02,321 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 19:01:02,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 19:01:02,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 19:01:02,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 19:01:02,321 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 19:01:02,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 19:01:02,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 19:01:02,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-12-07 19:01:02,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 19:01:02,322 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 19:01:02,323 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 19:01:02,327 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 19:01:02,330 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 19:01:02,331 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 19:01:02,372 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 19:01:02,372 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,374 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 19:01:02,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:02,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 19:01:02,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,387 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 19:01:02,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:02,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 19:01:02,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,398 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 19:01:02,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 19:01:02,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,404 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 19:01:02,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 19:01:02,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:02,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 19:01:02,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,411 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,413 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 19:01:02,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,415 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,419 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,419 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,429 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 19:01:02,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,431 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,433 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,433 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,443 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 19:01:02,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,445 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,446 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 19:01:02,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,451 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 19:01:02,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,452 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,455 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,455 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,459 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,460 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,463 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 19:01:02,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,465 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,469 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,469 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,482 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 19:01:02,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,484 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,486 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,486 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,495 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 19:01:02,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,497 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,497 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 19:01:02,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,502 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 19:01:02,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,504 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,506 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,506 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,511 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 19:01:02,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,516 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,520 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,521 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,534 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 19:01:02,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,536 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,538 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,538 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,547 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 19:01:02,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,548 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,549 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 19:01:02,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,550 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,554 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 19:01:02,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 19:01:02,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,555 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,557 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,557 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,564 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,566 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 19:01:02,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,568 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,568 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,570 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,570 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,582 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 19:01:02,584 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,584 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,584 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,585 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,585 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,593 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 19:01:02,594 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,594 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,595 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,595 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 19:01:02,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,600 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 19:01:02,601 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,601 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,602 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 19:01:02,603 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 19:01:02,603 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 19:01:02,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,608 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,611 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 19:01:02,612 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,612 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 19:01:02,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,613 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,615 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,615 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,629 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 19:01:02,630 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,630 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 19:01:02,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,631 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,633 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,633 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,642 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 19:01:02,644 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,644 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 19:01:02,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,644 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,645 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 19:01:02,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,651 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 19:01:02,652 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,652 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 19:01:02,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,652 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,654 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,654 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,661 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,663 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 19:01:02,665 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,665 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,665 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,668 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,668 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,685 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 19:01:02,686 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,686 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,687 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,689 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,689 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,702 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 19:01:02,703 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,703 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,704 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,705 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 19:01:02,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,712 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 19:01:02,714 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,714 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,714 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 19:01:02,716 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 19:01:02,717 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 19:01:02,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,725 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,727 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 19:01:02,728 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,728 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,729 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,731 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,731 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,742 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 19:01:02,743 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,743 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,743 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,745 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,745 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,753 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 19:01:02,754 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,754 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,755 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,755 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 19:01:02,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,760 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 19:01:02,763 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,763 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 19:01:02,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,763 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 19:01:02,765 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 19:01:02,765 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 19:01:02,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,770 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,772 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 19:01:02,774 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,774 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,774 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 19:01:02,778 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-12-07 19:01:02,778 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-12-07 19:01:02,791 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,796 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 19:01:02,797 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,797 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,797 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 19:01:02,800 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-12-07 19:01:02,800 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-12-07 19:01:02,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,810 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 19:01:02,811 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,811 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 19:01:02,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,811 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 19:01:02,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 19:01:02,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 19:01:02,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 19:01:02,819 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 19:01:02,821 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 19:01:02,821 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 19:01:02,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 19:01:02,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 19:01:02,821 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 19:01:02,823 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-12-07 19:01:02,823 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-12-07 19:01:02,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 19:01:02,830 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-12-07 19:01:02,830 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-12-07 19:01:02,830 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-12-07 19:01:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,830 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2019-12-07 19:01:02,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779389723] [2019-12-07 19:01:02,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,836 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2019-12-07 19:01:02,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109074444] [2019-12-07 19:01:02,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:01:02,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2019-12-07 19:01:02,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:01:02,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705522136] [2019-12-07 19:01:02,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:01:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:01:02,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:01:02,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 07:01:02 BoogieIcfgContainer [2019-12-07 19:01:02,881 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 19:01:02,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:01:02,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:01:02,881 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:01:02,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:01:01" (3/4) ... [2019-12-07 19:01:02,883 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 19:01:02,909 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d1326a4a-3ff9-45aa-a146-b7d5a4140cc3/bin/uautomizer/witness.graphml [2019-12-07 19:01:02,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:01:02,911 INFO L168 Benchmark]: Toolchain (without parser) took 2025.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 928.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 136.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:01:02,911 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:01:02,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:01:02,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.20 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 19:01:02,912 INFO L168 Benchmark]: Boogie Preprocessor took 11.77 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 19:01:02,912 INFO L168 Benchmark]: RCFGBuilder took 142.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:01:02,912 INFO L168 Benchmark]: BuchiAutomizer took 1649.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 935.0 MB in the end (delta: 162.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:01:02,913 INFO L168 Benchmark]: Witness Printer took 28.53 ms. Allocated memory is still 1.1 GB. Free memory was 935.0 MB in the beginning and 928.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:01:02,914 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.20 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 11.77 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 142.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1649.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 935.0 MB in the end (delta: 162.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. * Witness Printer took 28.53 ms. Allocated memory is still 1.1 GB. Free memory was 935.0 MB in the beginning and 928.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. 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 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...