./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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 ac2b0e405f36a91125e1a90b6b63874c5fe808a1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-30 01:15:42,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:15:42,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:15:42,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:15:42,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:15:42,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:15:42,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:15:42,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:15:42,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:15:42,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:15:42,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:15:42,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:15:42,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:15:42,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:15:42,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:15:42,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:15:42,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:15:42,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:15:42,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:15:42,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:15:42,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:15:42,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:15:42,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:15:42,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:15:42,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:15:42,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:15:42,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:15:42,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:15:42,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:15:42,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:15:42,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:15:42,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:15:42,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:15:42,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:15:42,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:15:42,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:15:42,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:15:42,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:15:42,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:15:42,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:15:42,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:15:42,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 01:15:42,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:15:42,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:15:42,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:15:42,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:15:42,247 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:15:42,247 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:15:42,248 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:15:42,248 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:15:42,248 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:15:42,248 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:15:42,249 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:15:42,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:15:42,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:15:42,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:15:42,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:15:42,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:15:42,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:15:42,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:15:42,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:15:42,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:15:42,251 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:15:42,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:15:42,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:15:42,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:15:42,253 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:15:42,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:15:42,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:15:42,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:15:42,254 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:15:42,255 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:15:42,256 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2020-11-30 01:15:42,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:15:42,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:15:42,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:15:42,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:15:42,689 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:15:42,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-11-30 01:15:42,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/data/e12e4fe3a/ec2c1cbb29cd4f4e9b533c35f0f244e9/FLAG0ece08850 [2020-11-30 01:15:43,480 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:15:43,481 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-11-30 01:15:43,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/data/e12e4fe3a/ec2c1cbb29cd4f4e9b533c35f0f244e9/FLAG0ece08850 [2020-11-30 01:15:43,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/data/e12e4fe3a/ec2c1cbb29cd4f4e9b533c35f0f244e9 [2020-11-30 01:15:43,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:15:43,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:15:43,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:15:43,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:15:43,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:15:43,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:15:43" (1/1) ... [2020-11-30 01:15:43,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d252602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:43, skipping insertion in model container [2020-11-30 01:15:43,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:15:43" (1/1) ... [2020-11-30 01:15:43,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:15:43,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:15:44,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:15:44,099 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:15:44,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:15:44,157 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:15:44,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44 WrapperNode [2020-11-30 01:15:44,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:15:44,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:15:44,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:15:44,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:15:44,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:15:44,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:15:44,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:15:44,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:15:44,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... [2020-11-30 01:15:44,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:15:44,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:15:44,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:15:44,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:15:44,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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 [2020-11-30 01:15:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:15:44,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:15:44,641 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:15:44,641 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 01:15:44,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:44 BoogieIcfgContainer [2020-11-30 01:15:44,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:15:44,645 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:15:44,645 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:15:44,660 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:15:44,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:15:44,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:15:43" (1/3) ... [2020-11-30 01:15:44,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21eda47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:15:44, skipping insertion in model container [2020-11-30 01:15:44,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:15:44,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:15:44" (2/3) ... [2020-11-30 01:15:44,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21eda47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:15:44, skipping insertion in model container [2020-11-30 01:15:44,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:15:44,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:44" (3/3) ... [2020-11-30 01:15:44,668 INFO L373 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2020-11-30 01:15:44,745 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:15:44,745 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:15:44,746 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:15:44,746 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:15:44,746 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:15:44,746 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:15:44,746 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:15:44,747 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:15:44,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-30 01:15:44,785 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-11-30 01:15:44,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:15:44,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:15:44,794 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 01:15:44,794 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:15:44,794 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:15:44,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-30 01:15:44,797 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-11-30 01:15:44,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:15:44,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:15:44,798 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 01:15:44,798 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:15:44,807 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2020-11-30 01:15:44,808 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2020-11-30 01:15:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:44,816 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-30 01:15:44,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:15:44,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254997265] [2020-11-30 01:15:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:15:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:45,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254997265] [2020-11-30 01:15:45,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:15:45,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:15:45,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467664912] [2020-11-30 01:15:45,027 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 01:15:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:45,034 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-11-30 01:15:45,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:15:45,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364012095] [2020-11-30 01:15:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:15:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:45,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:45,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:45,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:15:45,198 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:15:45,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:15:45,201 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:15:45,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:15:45,201 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:15:45,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:45,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:15:45,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:15:45,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-11-30 01:15:45,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:15:45,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:15:45,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,440 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:15:45,441 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:45,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:15:45,454 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:45,470 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:15:45,471 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_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:45,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:15:45,530 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:45,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:15:45,537 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_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:45,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:15:45,595 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:45,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:15:45,663 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:45,718 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 01:15:45,722 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:15:45,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:15:45,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:15:45,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:15:45,722 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:15:45,723 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:45,723 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:15:45,723 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:15:45,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-11-30 01:15:45,723 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:15:45,724 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:15:45,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:15:45,984 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-11-30 01:15:45,986 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:15:45,991 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:46,003 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 [2020-11-30 01:15:46,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:15:46,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:15:46,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:15:46,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:15:46,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:15:46,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:46,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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 [2020-11-30 01:15:46,093 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 [2020-11-30 01:15:46,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:15:46,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:15:46,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:15:46,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:15:46,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:15:46,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:15:46,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/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 [2020-11-30 01:15:46,160 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 [2020-11-30 01:15:46,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:15:46,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:15:46,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:15:46,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:15:46,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:15:46,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:15:46,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:15:46,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:15:46,182 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 01:15:46,182 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_f175a4de-a3b0-4785-a12c-da78e46a59b9/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) [2020-11-30 01:15:46,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:15:46,219 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 01:15:46,219 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:15:46,220 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:15:46,270 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 01:15:46,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:46,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:15:46,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:15:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:46,378 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:15:46,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:15:46,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:46,402 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 [2020-11-30 01:15:46,403 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2020-11-30 01:15:46,462 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2020-11-30 01:15:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:15:46,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-30 01:15:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-11-30 01:15:46,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-30 01:15:46,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:15:46,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2020-11-30 01:15:46,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:15:46,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 01:15:46,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:15:46,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2020-11-30 01:15:46,480 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2020-11-30 01:15:46,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2020-11-30 01:15:46,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-30 01:15:46,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-30 01:15:46,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-11-30 01:15:46,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:15:46,487 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-30 01:15:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-11-30 01:15:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-30 01:15:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-30 01:15:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-11-30 01:15:46,520 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-30 01:15:46,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:15:46,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:15:46,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:15:46,529 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-11-30 01:15:46,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:15:46,549 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-11-30 01:15:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:15:46,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2020-11-30 01:15:46,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:15:46,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2020-11-30 01:15:46,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-30 01:15:46,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-30 01:15:46,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-11-30 01:15:46,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:15:46,553 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-11-30 01:15:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-11-30 01:15:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-11-30 01:15:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 01:15:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-11-30 01:15:46,554 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-11-30 01:15:46,554 INFO L594 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-11-30 01:15:46,555 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:15:46,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2020-11-30 01:15:46,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:15:46,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:15:46,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:15:46,556 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:15:46,556 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:15:46,557 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 84#L10 assume !(main_~c~0 <= 10); 85#L17 assume !(main_~c~0 <= 50); 86#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 87#L31-2 [2020-11-30 01:15:46,557 INFO L796 eck$LassoCheckResult]: Loop: 87#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 87#L31-2 [2020-11-30 01:15:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:46,558 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2020-11-30 01:15:46,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:15:46,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869610397] [2020-11-30 01:15:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:15:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,580 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:15:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:46,581 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2020-11-30 01:15:46,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:15:46,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932817076] [2020-11-30 01:15:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:15:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:15:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:46,598 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2020-11-30 01:15:46,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:15:46,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544117777] [2020-11-30 01:15:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:15:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:15:46,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:15:46,617 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:15:46,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:15:46 BoogieIcfgContainer [2020-11-30 01:15:46,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:15:46,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:15:46,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:15:46,722 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:15:46,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:44" (3/4) ... [2020-11-30 01:15:46,727 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:15:46,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f175a4de-a3b0-4785-a12c-da78e46a59b9/bin/uautomizer/witness.graphml [2020-11-30 01:15:46,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:15:46,770 INFO L168 Benchmark]: Toolchain (without parser) took 2913.39 ms. Allocated memory is still 148.9 MB. Free memory was 118.7 MB in the beginning and 94.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:46,771 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 49.4 MB in the beginning and 49.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:15:46,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.03 ms. Allocated memory is still 148.9 MB. Free memory was 118.3 MB in the beginning and 124.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:46,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 148.9 MB. Free memory was 124.9 MB in the beginning and 123.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:15:46,773 INFO L168 Benchmark]: Boogie Preprocessor took 46.35 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 122.8 MB in the end (delta: 681.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:15:46,774 INFO L168 Benchmark]: RCFGBuilder took 386.47 ms. Allocated memory is still 148.9 MB. Free memory was 122.8 MB in the beginning and 112.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:46,775 INFO L168 Benchmark]: BuchiAutomizer took 2063.42 ms. Allocated memory is still 148.9 MB. Free memory was 112.9 MB in the beginning and 96.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:46,776 INFO L168 Benchmark]: Witness Printer took 46.85 ms. Allocated memory is still 148.9 MB. Free memory was 96.3 MB in the beginning and 94.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:46,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 49.4 MB in the beginning and 49.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.03 ms. Allocated memory is still 148.9 MB. Free memory was 118.3 MB in the beginning and 124.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 148.9 MB. Free memory was 124.9 MB in the beginning and 123.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.35 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 122.8 MB in the end (delta: 681.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 386.47 ms. Allocated memory is still 148.9 MB. Free memory was 122.8 MB in the beginning and 112.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2063.42 ms. Allocated memory is still 148.9 MB. Free memory was 112.9 MB in the beginning and 96.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 46.85 ms. Allocated memory is still 148.9 MB. Free memory was 96.3 MB in the beginning and 94.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 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 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: 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, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...