./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3607a70e53f56c4b4860f9fca9676a925474c3df ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:45:23,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:45:23,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:45:23,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:45:23,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:45:23,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:45:23,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:45:23,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:45:23,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:45:23,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:45:23,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:45:23,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:45:23,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:45:23,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:45:23,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:45:23,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:45:23,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:45:23,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:45:23,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:45:23,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:45:23,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:45:23,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:45:23,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:45:23,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:45:23,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:45:23,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:45:23,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:45:23,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:45:23,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:45:23,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:45:23,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:45:23,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:45:23,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:45:23,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:45:23,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:45:23,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:45:23,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:45:23,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:45:23,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:45:23,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:45:23,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:45:23,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:45:23,253 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:45:23,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:45:23,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:45:23,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:45:23,255 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:45:23,255 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:45:23,255 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:45:23,255 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:45:23,255 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:45:23,256 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:45:23,256 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:45:23,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:45:23,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:45:23,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:45:23,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:45:23,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:45:23,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:45:23,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:45:23,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:45:23,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:45:23,258 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:45:23,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:45:23,258 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:45:23,259 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:45:23,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:45:23,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:45:23,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:45:23,260 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:45:23,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:45:23,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:45:23,260 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:45:23,261 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:45:23,261 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_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3607a70e53f56c4b4860f9fca9676a925474c3df [2019-11-25 08:45:23,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:45:23,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:45:23,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:45:23,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:45:23,412 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:45:23,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2019-11-25 08:45:23,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/data/06679d2f3/59cb296f3a92488ba0a1282e648c7270/FLAGf6c505898 [2019-11-25 08:45:23,821 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:45:23,826 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2019-11-25 08:45:23,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/data/06679d2f3/59cb296f3a92488ba0a1282e648c7270/FLAGf6c505898 [2019-11-25 08:45:24,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/data/06679d2f3/59cb296f3a92488ba0a1282e648c7270 [2019-11-25 08:45:24,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:45:24,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:45:24,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:24,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:45:24,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:45:24,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6f6dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24, skipping insertion in model container [2019-11-25 08:45:24,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:45:24,241 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:45:24,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:24,454 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:45:24,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:24,549 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:45:24,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24 WrapperNode [2019-11-25 08:45:24,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:24,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:24,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:45:24,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:45:24,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:24,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:45:24,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:45:24,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:45:24,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:45:24,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:45:24,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:45:24,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:45:24,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:45:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:45:25,024 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:45:25,024 INFO L284 CfgBuilder]: Removed 42 assume(true) statements. [2019-11-25 08:45:25,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25 BoogieIcfgContainer [2019-11-25 08:45:25,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:45:25,026 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:45:25,026 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:45:25,029 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:45:25,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:45:24" (1/3) ... [2019-11-25 08:45:25,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89edb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:25, skipping insertion in model container [2019-11-25 08:45:25,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (2/3) ... [2019-11-25 08:45:25,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89edb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:25, skipping insertion in model container [2019-11-25 08:45:25,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25" (3/3) ... [2019-11-25 08:45:25,034 INFO L371 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2019-11-25 08:45:25,083 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:45:25,083 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:45:25,083 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:45:25,085 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:45:25,085 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:45:25,085 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:45:25,085 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:45:25,086 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:45:25,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2019-11-25 08:45:25,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2019-11-25 08:45:25,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:25,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:25,145 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:45:25,146 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:45:25,146 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:45:25,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2019-11-25 08:45:25,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2019-11-25 08:45:25,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:25,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:25,153 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:45:25,153 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:45:25,158 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~pre6, main_#t~pre7, main_#t~nondet8, main_#t~nondet9, main_#t~pre10, main_#t~pre11, main_~scheme~0, main_~urilen~0, main_~tokenlen~0, main_~cp~0, main_~c~0;havoc main_~scheme~0;havoc main_~urilen~0;havoc main_~tokenlen~0;havoc main_~cp~0;havoc main_~c~0;main_~urilen~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~tokenlen~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~scheme~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L18true assume !!(main_~urilen~0 <= 1000000 && main_~urilen~0 >= -1000000); 26#L19true assume !!(main_~tokenlen~0 <= 1000000 && main_~tokenlen~0 >= -1000000); 50#L20true assume !!(main_~scheme~0 <= 1000000 && main_~scheme~0 >= -1000000); 13#L21true assume main_~urilen~0 > 0; 67#L21-1true assume main_~tokenlen~0 > 0; 35#L22true assume main_~scheme~0 >= 0; 55#L23true assume !(0 == main_~scheme~0 || main_~urilen~0 - 1 < main_~scheme~0);main_~cp~0 := main_~scheme~0;__VERIFIER_assert_#in~cond := (if main_~cp~0 - 1 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 45#L4true assume !(0 == __VERIFIER_assert_~cond); 41#L4-2true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 37#L4-3true assume !(0 == __VERIFIER_assert_~cond); 29#L4-5true assume 0 != main_#t~nondet4;havoc main_#t~nondet4;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 10#L4-6true assume !(0 == __VERIFIER_assert_~cond); 6#L4-8true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L4-9true assume !(0 == __VERIFIER_assert_~cond); 34#L33-1true [2019-11-25 08:45:25,159 INFO L796 eck$LassoCheckResult]: Loop: 34#L33-1true assume !!(main_~cp~0 != main_~urilen~0 - 1); 57#L34true assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 17#L4-12true assume !(0 == __VERIFIER_assert_~cond); 15#L4-14true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 14#L4-15true assume !(0 == __VERIFIER_assert_~cond); 66#L4-17true main_#t~pre6 := 1 + main_~cp~0;main_~cp~0 := 1 + main_~cp~0;havoc main_#t~pre6; 34#L33-1true [2019-11-25 08:45:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,165 INFO L82 PathProgramCache]: Analyzing trace with hash -918144534, now seen corresponding path program 1 times [2019-11-25 08:45:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637672223] [2019-11-25 08:45:25,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,299 INFO L82 PathProgramCache]: Analyzing trace with hash -769545812, now seen corresponding path program 1 times [2019-11-25 08:45:25,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698046794] [2019-11-25 08:45:25,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,316 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2007306453, now seen corresponding path program 1 times [2019-11-25 08:45:25,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400704214] [2019-11-25 08:45:25,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,363 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,539 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:45:25,540 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:45:25,541 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:45:25,541 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:45:25,541 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:45:25,541 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:45:25,542 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:45:25,542 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2019-11-25 08:45:25,542 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:45:25,543 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:45:25,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,708 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:45:25,708 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/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 [2019-11-25 08:45:25,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:25,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:45:25,720 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:45:25,720 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/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 [2019-11-25 08:45:25,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:25,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:45:25,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:45:25,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:25,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:25,769 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:45:25,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre6=0} Honda state: {ULTIMATE.start_main_#t~pre6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:25,791 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:25,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:45:25,811 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:45:25,843 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:45:25,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:45:25,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:45:25,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:45:25,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:45:25,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:45:25,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:45:25,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2019-11-25 08:45:25,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:45:25,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:45:25,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:25,942 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:45:25,947 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:25,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:25,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:25,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:25,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:25,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:25,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:25,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:25,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:25,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:25,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:25,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:25,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:25,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:25,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:25,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:25,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:25,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/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) [2019-11-25 08:45:25,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:25,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:25,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:25,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:26,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:26,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:26,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:26,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:26,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:26,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:26,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:26,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:26,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:26,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:26,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:26,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:26,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:26,029 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:45:26,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:45:26,034 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71355eba-8122-4383-b380-779f9ea3f653/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:26,052 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:45:26,052 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:45:26,052 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:45:26,053 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~urilen~0, ULTIMATE.start_main_~cp~0) = 1*ULTIMATE.start_main_~urilen~0 - 1*ULTIMATE.start_main_~cp~0 Supporting invariants [] [2019-11-25 08:45:26,057 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:26,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:45:26,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:26,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:45:26,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:26,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:45:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:45:26,216 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-25 08:45:26,217 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states. Second operand 5 states. [2019-11-25 08:45:26,531 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states.. Second operand 5 states. Result 195 states and 270 transitions. Complement of second has 11 states. [2019-11-25 08:45:26,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-25 08:45:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:45:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 200 transitions. [2019-11-25 08:45:26,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 200 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-25 08:45:26,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:26,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 200 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-25 08:45:26,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:26,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 200 transitions. Stem has 15 letters. Loop has 12 letters. [2019-11-25 08:45:26,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:26,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 270 transitions. [2019-11-25 08:45:26,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:26,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 0 states and 0 transitions. [2019-11-25 08:45:26,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:45:26,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:45:26,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:45:26,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:45:26,562 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:26,563 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:26,563 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:26,563 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:45:26,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:45:26,563 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:26,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:45:26,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:45:26 BoogieIcfgContainer [2019-11-25 08:45:26,569 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:45:26,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:45:26,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:45:26,570 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:45:26,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25" (3/4) ... [2019-11-25 08:45:26,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:45:26,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:45:26,584 INFO L168 Benchmark]: Toolchain (without parser) took 2372.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 949.1 MB in the end (delta: 998.0 kB). Peak memory consumption was 134.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:26,585 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:26,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:26,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:26,587 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:26,587 INFO L168 Benchmark]: RCFGBuilder took 409.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:26,589 INFO L168 Benchmark]: BuchiAutomizer took 1543.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.1 MB in the end (delta: 150.5 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:26,590 INFO L168 Benchmark]: Witness Printer took 11.21 ms. Allocated memory is still 1.2 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:26,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 409.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1543.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.1 MB in the end (delta: 150.5 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. * Witness Printer took 11.21 ms. Allocated memory is still 1.2 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function urilen + -1 * cp and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 127 SDslu, 35 SDs, 0 SdLazy, 96 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf96 smp69 dnf100 smp100 tf109 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...