./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:32:14,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:32:14,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:32:14,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:32:14,120 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:32:14,120 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:32:14,121 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:32:14,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:32:14,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:32:14,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:32:14,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:32:14,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:32:14,123 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:32:14,124 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:32:14,124 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:32:14,125 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:32:14,125 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:32:14,126 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:32:14,127 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:32:14,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:32:14,128 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:32:14,129 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:32:14,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:32:14,130 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:32:14,130 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:32:14,130 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:32:14,131 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:32:14,131 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:32:14,132 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:32:14,132 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:32:14,132 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:32:14,133 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:32:14,133 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:32:14,133 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:32:14,133 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:32:14,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:32:14,134 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 20:32:14,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:32:14,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:32:14,142 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:32:14,142 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:32:14,142 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 20:32:14,143 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 20:32:14,143 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:32:14,143 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 20:32:14,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 20:32:14,144 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:32:14,144 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 20:32:14,145 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 20:32:14,145 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 20:32:14,145 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-12-02 20:32:14,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:32:14,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:32:14,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:32:14,172 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:32:14,172 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:32:14,172 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-02 20:32:14,207 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/data/8e0e0bf2d/9823b3cb09c243428ee84404ff6b3f44/FLAGe214cb2f7 [2018-12-02 20:32:14,564 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:32:14,565 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-02 20:32:14,568 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/data/8e0e0bf2d/9823b3cb09c243428ee84404ff6b3f44/FLAGe214cb2f7 [2018-12-02 20:32:14,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/data/8e0e0bf2d/9823b3cb09c243428ee84404ff6b3f44 [2018-12-02 20:32:14,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:32:14,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:32:14,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:32:14,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:32:14,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:32:14,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:32:14" (1/1) ... [2018-12-02 20:32:14,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d313c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:14, skipping insertion in model container [2018-12-02 20:32:14,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:32:14" (1/1) ... [2018-12-02 20:32:14,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:32:14,979 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:32:15,062 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:32:15,064 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:32:15,072 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:32:15,079 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:32:15,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15 WrapperNode [2018-12-02 20:32:15,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:32:15,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:32:15,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:32:15,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:32:15,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:32:15,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:32:15,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:32:15,099 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:32:15,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... [2018-12-02 20:32:15,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:32:15,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:32:15,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:32:15,109 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:32:15,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/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 [2018-12-02 20:32:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:32:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:32:15,241 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:32:15,241 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 20:32:15,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:15 BoogieIcfgContainer [2018-12-02 20:32:15,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:32:15,242 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 20:32:15,242 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 20:32:15,244 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 20:32:15,244 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 20:32:15,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:32:14" (1/3) ... [2018-12-02 20:32:15,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2854fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:32:15, skipping insertion in model container [2018-12-02 20:32:15,245 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 20:32:15,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:15" (2/3) ... [2018-12-02 20:32:15,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2854fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:32:15, skipping insertion in model container [2018-12-02 20:32:15,245 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 20:32:15,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:15" (3/3) ... [2018-12-02 20:32:15,246 INFO L375 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-02 20:32:15,276 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:32:15,277 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 20:32:15,277 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 20:32:15,277 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 20:32:15,277 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:32:15,277 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:32:15,277 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 20:32:15,277 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:32:15,277 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 20:32:15,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 20:32:15,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 20:32:15,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 20:32:15,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 20:32:15,300 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 20:32:15,300 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 20:32:15,300 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 20:32:15,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 20:32:15,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 20:32:15,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 20:32:15,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 20:32:15,301 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 20:32:15,301 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 20:32:15,305 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2018-12-02 20:32:15,306 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~y1~0 != main_~y2~0); 4#L22true assume main_~y1~0 > main_~y2~0;main_~y1~0 := main_~y1~0 - main_~y2~0; 10#L22-2true [2018-12-02 20:32:15,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:32:15,309 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-02 20:32:15,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:32:15,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:32:15,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:32:15,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:32:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-12-02 20:32:15,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:32:15,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:32:15,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:32:15,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:32:15,374 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-12-02 20:32:15,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:32:15,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:32:15,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:32:15,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:32:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:32:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:32:15 BoogieIcfgContainer [2018-12-02 20:32:15,437 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 20:32:15,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:32:15,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:32:15,437 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:32:15,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:15" (3/4) ... [2018-12-02 20:32:15,439 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 20:32:15,462 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5be53d49-7cd6-4799-aca2-ee3764e7422a/bin-2019/uautomizer/witness.graphml [2018-12-02 20:32:15,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:32:15,463 INFO L168 Benchmark]: Toolchain (without parser) took 509.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -93.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:32:15,464 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:32:15,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.36 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:32:15,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:32:15,465 INFO L168 Benchmark]: Boogie Preprocessor took 9.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:32:15,465 INFO L168 Benchmark]: RCFGBuilder took 132.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 20:32:15,466 INFO L168 Benchmark]: BuchiAutomizer took 194.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:32:15,466 INFO L168 Benchmark]: Witness Printer took 25.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:32:15,469 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.36 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 194.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 25.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 21]: 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 {y2=0, y1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c83e75b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38cac1cb=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...