./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.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_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/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 2291f924dd9adb1923bbd2b3119647838e71c665 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 17:21:01,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:21:01,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:21:01,810 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:21:01,810 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:21:01,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:21:01,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:21:01,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:21:01,812 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:21:01,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:21:01,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:21:01,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:21:01,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:21:01,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:21:01,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:21:01,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:21:01,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:21:01,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:21:01,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:21:01,818 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:21:01,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:21:01,819 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:21:01,820 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:21:01,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:21:01,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:21:01,821 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:21:01,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:21:01,822 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:21:01,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:21:01,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:21:01,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:21:01,823 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:21:01,823 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:21:01,823 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:21:01,824 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:21:01,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:21:01,824 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 17:21:01,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:21:01,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:21:01,832 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:21:01,832 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:21:01,832 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 17:21:01,833 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 17:21:01,833 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 17:21:01,833 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 17:21:01,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 17:21:01,834 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 17:21:01,834 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 17:21:01,835 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 17:21:01,835 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_1d096788-ac29-4845-9b85-fd73169a631b/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 -> 2291f924dd9adb1923bbd2b3119647838e71c665 [2018-12-01 17:21:01,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:21:01,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:21:01,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:21:01,860 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:21:01,860 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:21:01,861 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-01 17:21:01,893 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/data/dd45cb071/fae65bcf54fa4419bba5c8fae3c30550/FLAGa2e2cb759 [2018-12-01 17:21:02,276 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:21:02,276 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-01 17:21:02,280 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/data/dd45cb071/fae65bcf54fa4419bba5c8fae3c30550/FLAGa2e2cb759 [2018-12-01 17:21:02,288 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/data/dd45cb071/fae65bcf54fa4419bba5c8fae3c30550 [2018-12-01 17:21:02,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:21:02,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:21:02,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:21:02,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:21:02,292 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:21:02,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02, skipping insertion in model container [2018-12-01 17:21:02,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:21:02,307 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:21:02,386 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:21:02,389 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 17:21:02,397 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:21:02,404 INFO L195 MainTranslator]: Completed translation [2018-12-01 17:21:02,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02 WrapperNode [2018-12-01 17:21:02,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 17:21:02,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 17:21:02,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 17:21:02,405 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 17:21:02,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 17:21:02,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 17:21:02,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 17:21:02,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 17:21:02,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... [2018-12-01 17:21:02,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 17:21:02,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 17:21:02,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 17:21:02,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 17:21:02,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/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 [2018-12-01 17:21:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 17:21:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 17:21:02,570 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 17:21:02,571 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-01 17:21:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:21:02 BoogieIcfgContainer [2018-12-01 17:21:02,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 17:21:02,571 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 17:21:02,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 17:21:02,573 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 17:21:02,574 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:21:02,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 05:21:02" (1/3) ... [2018-12-01 17:21:02,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@498093fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 05:21:02, skipping insertion in model container [2018-12-01 17:21:02,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:21:02,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:21:02" (2/3) ... [2018-12-01 17:21:02,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@498093fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 05:21:02, skipping insertion in model container [2018-12-01 17:21:02,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:21:02,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:21:02" (3/3) ... [2018-12-01 17:21:02,578 INFO L375 chiAutomizerObserver]: Analyzing ICFG Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-01 17:21:02,617 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 17:21:02,618 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 17:21:02,618 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 17:21:02,618 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 17:21:02,618 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 17:21:02,618 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 17:21:02,618 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 17:21:02,618 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 17:21:02,618 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 17:21:02,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-01 17:21:02,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 17:21:02,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:21:02,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:21:02,643 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 17:21:02,644 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:21:02,644 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 17:21:02,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-01 17:21:02,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 17:21:02,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:21:02,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:21:02,645 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 17:21:02,645 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:21:02,649 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 11#L20true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 3#L21true assume !!(main_~z~0 <= 1073741823); 7#L24-2true [2018-12-01 17:21:02,650 INFO L796 eck$LassoCheckResult]: Loop: 7#L24-2true assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 9#L24true assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 7#L24-2true [2018-12-01 17:21:02,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:02,653 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2018-12-01 17:21:02,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:02,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:02,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:02,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:02,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 1 times [2018-12-01 17:21:02,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:02,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:02,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:02,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:02,727 INFO L82 PathProgramCache]: Analyzing trace with hash 29742639, now seen corresponding path program 1 times [2018-12-01 17:21:02,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:02,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:02,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:02,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:02,766 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:02,767 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:02,767 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:02,767 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:02,767 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:21:02,767 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:02,767 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:02,767 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:02,767 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-01 17:21:02,767 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:02,767 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:02,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,847 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:02,848 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:02,852 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:02,852 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:02,872 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:02,872 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:02,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:02,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:02,891 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:02,891 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:02,893 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:02,894 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:02,910 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:21:02,910 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:02,927 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:21:02,928 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:02,928 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:02,928 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:02,928 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:02,928 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:21:02,928 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:02,928 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:02,928 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:02,928 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-01 17:21:02,928 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:02,928 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:02,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:02,971 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:02,974 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:21:02,975 INFO L122 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 [2018-12-01 17:21:02,976 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:02,976 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:02,977 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:02,977 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:02,979 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:21:02,979 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:21:02,983 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:21:02,984 INFO L122 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 [2018-12-01 17:21:02,984 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:02,984 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:02,984 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:02,984 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:02,986 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:21:02,986 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:21:02,989 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:21:02,990 INFO L122 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 [2018-12-01 17:21:02,990 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:02,990 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:21:02,991 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:02,991 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:02,991 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:02,991 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:21:02,991 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:21:02,994 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:21:02,996 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:21:02,996 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 17:21:02,997 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:21:02,997 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 17:21:02,998 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:21:02,998 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-01 17:21:02,999 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 17:21:03,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,049 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,050 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-12-01 17:21:03,092 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 29 states and 38 transitions. Complement of second has 8 states. [2018-12-01 17:21:03,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:21:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-12-01 17:21:03,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 17:21:03,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-01 17:21:03,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-01 17:21:03,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2018-12-01 17:21:03,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 17:21:03,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 10 states and 13 transitions. [2018-12-01 17:21:03,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-01 17:21:03,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-01 17:21:03,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2018-12-01 17:21:03,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:21:03,103 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-01 17:21:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2018-12-01 17:21:03,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-01 17:21:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-01 17:21:03,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-12-01 17:21:03,119 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-01 17:21:03,119 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-01 17:21:03,119 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 17:21:03,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-12-01 17:21:03,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 17:21:03,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:21:03,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:21:03,120 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-01 17:21:03,120 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 17:21:03,120 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 82#L21 assume !!(main_~z~0 <= 1073741823); 83#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 91#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 86#L27 [2018-12-01 17:21:03,120 INFO L796 eck$LassoCheckResult]: Loop: 86#L27 assume !!(main_~z~0 <= 1073741823); 87#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 88#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 86#L27 [2018-12-01 17:21:03,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,121 INFO L82 PathProgramCache]: Analyzing trace with hash 29742632, now seen corresponding path program 1 times [2018-12-01 17:21:03,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:03,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,127 INFO L82 PathProgramCache]: Analyzing trace with hash 57342, now seen corresponding path program 1 times [2018-12-01 17:21:03,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:03,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1299514487, now seen corresponding path program 1 times [2018-12-01 17:21:03,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:03,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,155 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,155 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,155 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,156 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,156 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:21:03,156 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,156 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,156 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,156 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-12-01 17:21:03,156 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,156 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,197 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,197 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,199 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,199 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,213 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:03,214 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:03,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,216 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,231 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:03,231 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:03,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,238 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:03,238 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=428867584, ULTIMATE.start_main_~z~0=428867584} Honda state: {ULTIMATE.start_main_#t~nondet2=428867584, ULTIMATE.start_main_~z~0=428867584} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:03,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,253 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/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 [2018-12-01 17:21:03,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:21:03,269 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,299 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:21:03,300 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,301 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,301 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,301 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,301 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:21:03,301 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,301 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,301 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,301 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-12-01 17:21:03,301 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,301 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,349 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:21:03,350 INFO L122 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 [2018-12-01 17:21:03,350 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,351 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,351 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,351 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,353 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:21:03,353 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:21:03,356 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:21:03,357 INFO L122 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 [2018-12-01 17:21:03,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,358 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,358 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,358 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,359 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:21:03,359 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:21:03,363 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:21:03,364 INFO L122 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 [2018-12-01 17:21:03,364 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,364 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:21:03,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,365 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,365 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,365 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:21:03,366 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:21:03,367 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:21:03,368 INFO L122 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 [2018-12-01 17:21:03,368 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,368 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:21:03,368 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,368 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,369 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:21:03,369 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:21:03,372 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:21:03,374 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:21:03,374 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 17:21:03,375 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:21:03,375 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 17:21:03,375 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:21:03,375 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-01 17:21:03,375 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 17:21:03,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,411 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,411 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-12-01 17:21:03,432 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 15 states and 20 transitions. Complement of second has 6 states. [2018-12-01 17:21:03,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:21:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-01 17:21:03,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-01 17:21:03,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-01 17:21:03,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2018-12-01 17:21:03,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-12-01 17:21:03,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:21:03,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-12-01 17:21:03,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-01 17:21:03,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-01 17:21:03,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-12-01 17:21:03,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:21:03,436 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-12-01 17:21:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-12-01 17:21:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-12-01 17:21:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-01 17:21:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2018-12-01 17:21:03,438 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-01 17:21:03,438 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-01 17:21:03,438 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 17:21:03,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2018-12-01 17:21:03,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:21:03,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:21:03,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:21:03,439 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 17:21:03,439 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:21:03,439 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 157#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 154#L21 assume !!(main_~z~0 <= 1073741823); 155#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 163#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L27 assume !!(main_~z~0 <= 1073741823); 160#L24-2 [2018-12-01 17:21:03,439 INFO L796 eck$LassoCheckResult]: Loop: 160#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 165#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 160#L24-2 [2018-12-01 17:21:03,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,440 INFO L82 PathProgramCache]: Analyzing trace with hash 922021620, now seen corresponding path program 2 times [2018-12-01 17:21:03,440 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:03,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 2 times [2018-12-01 17:21:03,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,448 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:21:03,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1299514494, now seen corresponding path program 1 times [2018-12-01 17:21:03,450 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:21:03,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,470 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,470 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,470 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,470 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,470 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:21:03,470 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,470 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,470 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,470 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-12-01 17:21:03,470 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,470 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,515 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,515 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,517 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:21:03,538 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,553 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:21:03,554 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,554 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,554 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,554 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,554 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:21:03,554 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,554 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,555 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,555 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-12-01 17:21:03,555 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,555 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,595 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,595 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:21:03,595 INFO L122 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 [2018-12-01 17:21:03,595 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,595 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:21:03,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,596 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,596 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:21:03,596 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:21:03,598 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:21:03,599 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:21:03,599 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 17:21:03,599 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:21:03,599 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 17:21:03,599 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:21:03,600 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-01 17:21:03,600 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 17:21:03,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,624 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,624 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-01 17:21:03,630 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 27 transitions. Complement of second has 5 states. [2018-12-01 17:21:03,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:21:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-01 17:21:03,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-01 17:21:03,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-01 17:21:03,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-01 17:21:03,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2018-12-01 17:21:03,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:21:03,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2018-12-01 17:21:03,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-01 17:21:03,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-01 17:21:03,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2018-12-01 17:21:03,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:21:03,633 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-01 17:21:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2018-12-01 17:21:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-01 17:21:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-01 17:21:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2018-12-01 17:21:03,634 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-01 17:21:03,634 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-01 17:21:03,634 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 17:21:03,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2018-12-01 17:21:03,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:21:03,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:21:03,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:21:03,635 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-12-01 17:21:03,635 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:21:03,635 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 235#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 232#L21 assume !!(main_~z~0 <= 1073741823); 233#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 242#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 236#L27 assume !!(main_~z~0 <= 1073741823); 237#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 246#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 238#L27 assume !!(main_~z~0 <= 1073741823); 239#L24-2 [2018-12-01 17:21:03,635 INFO L796 eck$LassoCheckResult]: Loop: 239#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 244#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 239#L24-2 [2018-12-01 17:21:03,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1630243461, now seen corresponding path program 3 times [2018-12-01 17:21:03,635 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:21:03,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 3 times [2018-12-01 17:21:03,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,646 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:21:03,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash -999096369, now seen corresponding path program 2 times [2018-12-01 17:21:03,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:21:03,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:21:03,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,651 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:21:03,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:21:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:21:03,670 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,670 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,670 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,670 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,671 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:21:03,671 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,671 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,671 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,671 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-12-01 17:21:03,671 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,671 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,711 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,711 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,713 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,728 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:21:03,728 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:21:03,731 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d096788-ac29-4845-9b85-fd73169a631b/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,747 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:21:03,747 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:21:03,762 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:21:03,763 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:21:03,763 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:21:03,763 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:21:03,763 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:21:03,763 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:21:03,763 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:21:03,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:21:03,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:21:03,764 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-12-01 17:21:03,764 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:21:03,764 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:21:03,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:21:03,800 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:21:03,800 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:21:03,801 INFO L122 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 [2018-12-01 17:21:03,801 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:21:03,801 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:21:03,801 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:21:03,801 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:21:03,801 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:21:03,801 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:21:03,802 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:21:03,803 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:21:03,804 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:21:03,804 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 17:21:03,804 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:21:03,804 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 17:21:03,804 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:21:03,804 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-01 17:21:03,804 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 17:21:03,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,828 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,829 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-01 17:21:03,834 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-12-01 17:21:03,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:21:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-01 17:21:03,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 17:21:03,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,835 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:21:03,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,853 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,853 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-01 17:21:03,858 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-12-01 17:21:03,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:21:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-01 17:21:03,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 17:21:03,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,858 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:21:03,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:21:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:21:03,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:21:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:21:03,878 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 17:21:03,879 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-01 17:21:03,884 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 21 states and 27 transitions. Complement of second has 4 states. [2018-12-01 17:21:03,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:21:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:21:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-01 17:21:03,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 17:21:03,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 17:21:03,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-01 17:21:03,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:21:03,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2018-12-01 17:21:03,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 17:21:03,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2018-12-01 17:21:03,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 17:21:03,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 17:21:03,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 17:21:03,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 17:21:03,886 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:21:03,887 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:21:03,887 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:21:03,887 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 17:21:03,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 17:21:03,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 17:21:03,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 17:21:03,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 05:21:03 BoogieIcfgContainer [2018-12-01 17:21:03,891 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 17:21:03,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 17:21:03,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 17:21:03,891 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 17:21:03,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:21:02" (3/4) ... [2018-12-01 17:21:03,894 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 17:21:03,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 17:21:03,894 INFO L168 Benchmark]: Toolchain (without parser) took 1604.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 962.4 MB in the beginning and 828.4 MB in the end (delta: 134.1 MB). Peak memory consumption was 257.3 MB. Max. memory is 11.5 GB. [2018-12-01 17:21:03,895 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:21:03,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 114.59 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-01 17:21:03,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.79 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:21:03,896 INFO L168 Benchmark]: Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:21:03,896 INFO L168 Benchmark]: RCFGBuilder took 137.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:21:03,896 INFO L168 Benchmark]: BuchiAutomizer took 1319.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 274.4 MB). Peak memory consumption was 274.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:21:03,897 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:21:03,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 114.59 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.79 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 137.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1319.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 274.4 MB). Peak memory consumption was 274.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * z + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 8 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf113 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...