./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex04.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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 af2ddbb903c4368307185214b2ec9c8b5acf03e6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-11-15 22:17:10,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:17:10,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:17:10,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:17:10,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:17:10,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:17:10,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:17:10,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:17:10,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:17:10,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:17:10,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:17:10,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:17:10,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:17:10,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:17:10,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:17:10,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:17:10,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:17:10,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:17:10,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:17:10,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:17:10,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:17:10,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:17:10,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:17:10,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:17:10,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:17:10,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:17:10,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:17:10,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:17:10,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:17:10,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:17:10,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:17:10,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:17:10,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:17:10,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:17:10,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:17:10,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:17:10,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:17:10,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:17:10,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:17:10,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:17:10,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:17:10,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 22:17:10,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:17:10,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:17:10,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:17:10,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:17:10,696 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:17:10,697 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:17:10,697 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:17:10,697 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:17:10,697 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:17:10,698 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:17:10,698 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:17:10,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:17:10,698 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:17:10,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:17:10,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:17:10,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:17:10,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:17:10,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:17:10,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:17:10,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:17:10,700 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:17:10,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:17:10,701 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:17:10,701 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:17:10,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:17:10,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:17:10,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:17:10,702 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:17:10,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:17:10,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:17:10,703 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:17:10,704 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:17:10,704 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_2c113be1-7edf-488a-bbb5-cbafa762af16/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 -> af2ddbb903c4368307185214b2ec9c8b5acf03e6 [2019-11-15 22:17:10,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:17:10,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:17:10,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:17:10,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:17:10,749 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:17:10,750 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/../../sv-benchmarks/c/loops/trex04.c [2019-11-15 22:17:10,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/data/6ece94f22/967df1a8b58345dda14ce592cb33310b/FLAG8460b7649 [2019-11-15 22:17:11,175 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:17:11,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/sv-benchmarks/c/loops/trex04.c [2019-11-15 22:17:11,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/data/6ece94f22/967df1a8b58345dda14ce592cb33310b/FLAG8460b7649 [2019-11-15 22:17:11,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/data/6ece94f22/967df1a8b58345dda14ce592cb33310b [2019-11-15 22:17:11,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:17:11,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:17:11,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:17:11,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:17:11,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:17:11,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432effc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11, skipping insertion in model container [2019-11-15 22:17:11,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,560 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:17:11,576 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:17:11,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:17:11,719 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:17:11,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:17:11,806 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:17:11,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11 WrapperNode [2019-11-15 22:17:11,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:17:11,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:17:11,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:17:11,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:17:11,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:17:11,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:17:11,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:17:11,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:17:11,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... [2019-11-15 22:17:11,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:17:11,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:17:11,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:17:11,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:17:11,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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 [2019-11-15 22:17:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:17:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:17:12,135 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:17:12,136 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-15 22:17:12,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:17:12 BoogieIcfgContainer [2019-11-15 22:17:12,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:17:12,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:17:12,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:17:12,147 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:17:12,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:17:12,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:17:11" (1/3) ... [2019-11-15 22:17:12,151 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36f59ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:17:12, skipping insertion in model container [2019-11-15 22:17:12,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:17:12,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:17:11" (2/3) ... [2019-11-15 22:17:12,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36f59ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:17:12, skipping insertion in model container [2019-11-15 22:17:12,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:17:12,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:17:12" (3/3) ... [2019-11-15 22:17:12,154 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex04.c [2019-11-15 22:17:12,202 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:17:12,202 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:17:12,203 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:17:12,203 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:17:12,203 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:17:12,203 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:17:12,203 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:17:12,204 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:17:12,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-15 22:17:12,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:17:12,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:17:12,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:17:12,244 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:17:12,244 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:17:12,244 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:17:12,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-15 22:17:12,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:17:12,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:17:12,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:17:12,247 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:17:12,247 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:17:12,252 INFO L791 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 4#L26true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 9#L29true assume !(0 != main_~c1~1 % 256); 6#L29-2true assume !(0 != main_~c2~1 % 256); 10#L30true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 15#L34true assume !(0 != main_~c1~1 % 256); 12#L34-1true assume !(0 != main_~c2~1 % 256); 20#L37-1true [2019-11-15 22:17:12,253 INFO L793 eck$LassoCheckResult]: Loop: 20#L37-1true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 20#L37-1true [2019-11-15 22:17:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:12,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1481824371, now seen corresponding path program 1 times [2019-11-15 22:17:12,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:12,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721389002] [2019-11-15 22:17:12,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,358 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:12,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:12,360 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2019-11-15 22:17:12,360 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:12,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704243215] [2019-11-15 22:17:12,360 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,360 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,369 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1308084818, now seen corresponding path program 1 times [2019-11-15 22:17:12,371 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:12,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371766305] [2019-11-15 22:17:12,371 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,371 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:12,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:12,395 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:12,549 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:17:12,549 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:17:12,550 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:17:12,550 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:17:12,550 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:17:12,550 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:17:12,550 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:17:12,551 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:17:12,551 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2019-11-15 22:17:12,551 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:17:12,552 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:17:12,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,788 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:17:12,790 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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 [2019-11-15 22:17:12,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,810 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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 [2019-11-15 22:17:12,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,827 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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) [2019-11-15 22:17:12,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,862 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,862 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 [2019-11-15 22:17:12,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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) [2019-11-15 22:17:12,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,892 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 [2019-11-15 22:17:12,897 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,897 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/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 [2019-11-15 22:17:12,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,919 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_2c113be1-7edf-488a-bbb5-cbafa762af16/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 [2019-11-15 22:17:12,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:17:12,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet8=0} Honda state: {ULTIMATE.start_main_#t~nondet8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:17:12,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:17:12,945 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:17:12,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:17:12,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:17:12,976 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:17:12,978 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:17:12,979 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:17:12,979 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:17:12,979 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:17:12,979 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:17:12,979 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:17:12,979 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:17:12,979 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:17:12,980 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2019-11-15 22:17:12,980 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:17:12,980 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:17:12,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:12,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:13,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:13,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:13,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:13,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:17:13,145 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:17:13,150 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:17:13,151 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 [2019-11-15 22:17:13,152 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,153 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:17:13,154 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,154 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,155 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,156 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:17:13,157 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:17:13,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,162 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 [2019-11-15 22:17:13,163 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,164 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:17:13,164 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,164 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,164 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,165 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:17:13,165 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:17:13,168 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,168 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 [2019-11-15 22:17:13,169 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,170 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,170 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,170 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,174 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:17:13,174 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:17:13,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,204 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 [2019-11-15 22:17:13,206 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,206 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:17:13,206 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,206 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,206 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,207 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:17:13,207 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:17:13,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,208 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 [2019-11-15 22:17:13,209 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,209 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,209 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,209 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,211 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:17:13,213 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:17:13,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,219 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 [2019-11-15 22:17:13,221 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,221 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:17:13,221 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,222 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,222 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,223 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:17:13,223 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:17:13,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:17:13,226 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 [2019-11-15 22:17:13,227 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:17:13,227 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:17:13,227 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:17:13,228 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:17:13,235 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:17:13,235 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:17:13,339 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:17:13,368 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:17:13,371 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:17:13,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:17:13,378 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:17:13,379 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:17:13,380 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2019-11-15 22:17:13,384 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:17:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:17:13,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:17:13,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:17:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:17:13,456 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:17:13,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:17:13,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:17:13,475 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-15 22:17:13,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-11-15 22:17:13,590 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2019-11-15 22:17:13,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-15 22:17:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:17:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2019-11-15 22:17:13,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-15 22:17:13,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:17:13,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-15 22:17:13,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:17:13,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 22:17:13,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:17:13,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2019-11-15 22:17:13,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-15 22:17:13,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 23 states and 37 transitions. [2019-11-15 22:17:13,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-15 22:17:13,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-15 22:17:13,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 37 transitions. [2019-11-15 22:17:13,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:17:13,619 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 37 transitions. [2019-11-15 22:17:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 37 transitions. [2019-11-15 22:17:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-11-15 22:17:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:17:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2019-11-15 22:17:13,650 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-11-15 22:17:13,650 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-11-15 22:17:13,650 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:17:13,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 34 transitions. [2019-11-15 22:17:13,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:17:13,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:17:13,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:17:13,653 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:17:13,653 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:17:13,654 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 145#L26 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 146#L29 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 148#L29-2 assume !(0 != main_~c2~1 % 256); 144#L30 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 154#L34 assume !(0 != main_~c1~1 % 256); 153#L34-1 assume !(0 != main_~c2~1 % 256); 151#L37-1 [2019-11-15 22:17:13,654 INFO L793 eck$LassoCheckResult]: Loop: 151#L37-1 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 151#L37-1 [2019-11-15 22:17:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:13,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1483671413, now seen corresponding path program 1 times [2019-11-15 22:17:13,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:13,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814953203] [2019-11-15 22:17:13,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,685 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:13,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:13,686 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 2 times [2019-11-15 22:17:13,686 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:13,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705094373] [2019-11-15 22:17:13,687 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,687 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,704 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:13,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:17:13,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1250826516, now seen corresponding path program 1 times [2019-11-15 22:17:13,705 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:17:13,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844880404] [2019-11-15 22:17:13,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:17:13,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:17:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:17:13,730 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:17:13,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:17:13 BoogieIcfgContainer [2019-11-15 22:17:13,825 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:17:13,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:17:13,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:17:13,826 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:17:13,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:17:12" (3/4) ... [2019-11-15 22:17:13,829 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 22:17:13,890 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c113be1-7edf-488a-bbb5-cbafa762af16/bin/uautomizer/witness.graphml [2019-11-15 22:17:13,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:17:13,892 INFO L168 Benchmark]: Toolchain (without parser) took 2345.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 944.7 MB in the beginning and 976.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 132.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,893 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:17:13,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:17:13,894 INFO L168 Benchmark]: Boogie Preprocessor took 20.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,894 INFO L168 Benchmark]: RCFGBuilder took 281.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,900 INFO L168 Benchmark]: BuchiAutomizer took 1686.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 158.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,900 INFO L168 Benchmark]: Witness Printer took 65.13 ms. Allocated memory is still 1.2 GB. Free memory was 981.7 MB in the beginning and 976.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:17:13,906 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 281.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1686.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 158.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.13 ms. Allocated memory is still 1.2 GB. Free memory was 981.7 MB in the beginning and 976.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 46 SDslu, 24 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf93 lsp67 ukn100 mio100 lsp100 div209 bol100 ite100 ukn100 eq145 hnf45 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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: 37]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f7f3ff=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c8313c8=0, c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@299b2b43=0, c1=0, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43ff0c71=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f3b67fa=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L24] int d = 1; [L25] int x = __VERIFIER_nondet_int(); [L26] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L27] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L27] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L29] COND TRUE \read(c1) [L29] d = d - 1 [L30] COND FALSE !(\read(c2)) [L32] c1=__VERIFIER_nondet_bool() [L32] c2=__VERIFIER_nondet_bool() [L34] COND FALSE !(\read(c1)) [L35] COND FALSE !(\read(c2)) Loop: [L37] COND TRUE x>0 [L39] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...