./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 32bit --witnessprinter.graph.data.programhash 91fda61e05234dbe68b069d372f5d4b0bb73b229 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 09:22:56,773 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:22:56,774 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:22:56,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:22:56,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:22:56,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:22:56,782 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:22:56,784 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:22:56,785 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:22:56,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:22:56,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:22:56,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:22:56,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:22:56,787 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:22:56,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:22:56,788 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:22:56,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:22:56,790 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:22:56,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:22:56,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:22:56,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:22:56,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:22:56,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:22:56,796 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:22:56,796 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:22:56,796 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:22:56,797 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:22:56,798 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:22:56,798 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:22:56,799 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:22:56,799 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:22:56,800 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:22:56,800 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:22:56,800 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:22:56,800 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:22:56,801 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:22:56,801 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 09:22:56,812 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:22:56,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:22:56,813 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 09:22:56,813 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 09:22:56,813 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 09:22:56,813 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 09:22:56,813 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 09:22:56,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:22:56,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 09:22:56,815 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 09:22:56,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:22:56,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:22:56,816 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 09:22:56,816 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:22:56,816 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 09:22:56,816 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 09:22:56,816 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 09:22:56,816 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_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91fda61e05234dbe68b069d372f5d4b0bb73b229 [2018-12-09 09:22:56,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:22:56,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:22:56,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:22:56,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:22:56,848 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:22:56,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-12-09 09:22:56,883 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/data/6b8991e13/5e31c79009e44f9290c25b4e312b8b20/FLAG373131a7e [2018-12-09 09:22:57,322 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:22:57,322 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-12-09 09:22:57,326 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/data/6b8991e13/5e31c79009e44f9290c25b4e312b8b20/FLAG373131a7e [2018-12-09 09:22:57,337 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/data/6b8991e13/5e31c79009e44f9290c25b4e312b8b20 [2018-12-09 09:22:57,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:22:57,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:22:57,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:22:57,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:22:57,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:22:57,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c40e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57, skipping insertion in model container [2018-12-09 09:22:57,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:22:57,366 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:22:57,465 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:22:57,467 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:22:57,482 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:22:57,491 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:22:57,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57 WrapperNode [2018-12-09 09:22:57,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:22:57,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:22:57,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:22:57,492 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:22:57,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:22:57,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:22:57,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:22:57,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:22:57,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... [2018-12-09 09:22:57,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:22:57,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:22:57,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:22:57,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:22:57,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:22:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:22:57,677 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:22:57,677 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-09 09:22:57,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:22:57 BoogieIcfgContainer [2018-12-09 09:22:57,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:22:57,677 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 09:22:57,678 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 09:22:57,680 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 09:22:57,680 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 09:22:57,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 09:22:57" (1/3) ... [2018-12-09 09:22:57,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aa17fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 09:22:57, skipping insertion in model container [2018-12-09 09:22:57,681 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 09:22:57,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:22:57" (2/3) ... [2018-12-09 09:22:57,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aa17fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 09:22:57, skipping insertion in model container [2018-12-09 09:22:57,681 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 09:22:57,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:22:57" (3/3) ... [2018-12-09 09:22:57,682 INFO L375 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-12-09 09:22:57,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 09:22:57,714 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 09:22:57,714 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 09:22:57,714 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 09:22:57,714 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:22:57,714 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:22:57,714 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 09:22:57,714 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:22:57,714 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 09:22:57,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-09 09:22:57,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-12-09 09:22:57,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:57,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:57,739 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 09:22:57,739 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 09:22:57,739 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 09:22:57,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-09 09:22:57,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-12-09 09:22:57,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:57,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:57,740 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 09:22:57,741 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 09:22:57,745 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 24#L100true [2018-12-09 09:22:57,745 INFO L796 eck$LassoCheckResult]: Loop: 24#L100true assume !false; 8#L19true assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 22#L25true assume 8466 == main_~s__state~0; 4#L26true assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 2; 23#L58-1true assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 24#L100true [2018-12-09 09:22:57,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:57,748 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-09 09:22:57,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:57,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:57,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:57,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:57,807 INFO L82 PathProgramCache]: Analyzing trace with hash 38329778, now seen corresponding path program 1 times [2018-12-09 09:22:57,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:57,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:57,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:57,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:57,816 INFO L82 PathProgramCache]: Analyzing trace with hash 925833459, now seen corresponding path program 1 times [2018-12-09 09:22:57,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:57,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:57,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:57,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:57,862 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:57,863 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:57,863 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:57,863 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:57,863 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 09:22:57,863 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:57,863 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:57,863 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:57,864 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration1_Loop [2018-12-09 09:22:57,864 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:57,864 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:57,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:57,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:57,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:57,935 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:57,935 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:57,939 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:57,939 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:57,945 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 09:22:57,945 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0=7} Honda state: {ULTIMATE.start_main_~s__hit~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:57,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:57,969 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:57,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 09:22:57,987 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:57,990 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 09:22:58,012 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,013 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,013 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,013 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,013 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 09:22:58,013 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,013 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,013 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,013 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration1_Loop [2018-12-09 09:22:58,013 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,013 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,055 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,058 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 09:22:58,059 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 [2018-12-09 09:22:58,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,060 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,060 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,060 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-09 09:22:58,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,062 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-09 09:22:58,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,064 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 09:22:58,065 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 [2018-12-09 09:22:58,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 09:22:58,065 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,066 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 09:22:58,066 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,069 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 09:22:58,073 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 09:22:58,073 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 09:22:58,074 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 09:22:58,074 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 09:22:58,075 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 09:22:58,075 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0) = -1*ULTIMATE.start_main_~blastFlag~0 + 1 Supporting invariants [] [2018-12-09 09:22:58,076 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 09:22:58,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,124 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 [2018-12-09 09:22:58,124 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2018-12-09 09:22:58,163 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 4 states. Result 51 states and 83 transitions. Complement of second has 5 states. [2018-12-09 09:22:58,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 09:22:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 09:22:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2018-12-09 09:22:58,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 1 letters. Loop has 5 letters. [2018-12-09 09:22:58,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 6 letters. Loop has 5 letters. [2018-12-09 09:22:58,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 1 letters. Loop has 10 letters. [2018-12-09 09:22:58,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 83 transitions. [2018-12-09 09:22:58,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-12-09 09:22:58,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 58 transitions. [2018-12-09 09:22:58,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-09 09:22:58,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-12-09 09:22:58,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 58 transitions. [2018-12-09 09:22:58,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:58,172 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 58 transitions. [2018-12-09 09:22:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 58 transitions. [2018-12-09 09:22:58,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2018-12-09 09:22:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 09:22:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2018-12-09 09:22:58,189 INFO L728 BuchiCegarLoop]: Abstraction has 35 states and 56 transitions. [2018-12-09 09:22:58,189 INFO L608 BuchiCegarLoop]: Abstraction has 35 states and 56 transitions. [2018-12-09 09:22:58,189 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 09:22:58,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 56 transitions. [2018-12-09 09:22:58,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-12-09 09:22:58,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:58,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:58,190 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 09:22:58,190 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 09:22:58,191 INFO L794 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 149#L100 assume !false; 134#L19 [2018-12-09 09:22:58,191 INFO L796 eck$LassoCheckResult]: Loop: 134#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 135#L25 assume 8466 == main_~s__state~0; 119#L26 assume !(0 == main_~blastFlag~0); 120#L58-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 125#L100 assume !false; 134#L19 [2018-12-09 09:22:58,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-09 09:22:58,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,194 INFO L82 PathProgramCache]: Analyzing trace with hash 43059010, now seen corresponding path program 1 times [2018-12-09 09:22:58,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1363931911, now seen corresponding path program 1 times [2018-12-09 09:22:58,199 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,199 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:22:58,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 09:22:58,234 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,234 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,234 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,234 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,234 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 09:22:58,234 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,234 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,234 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,234 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration2_Loop [2018-12-09 09:22:58,234 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,235 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,281 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,281 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,284 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,284 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,288 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 09:22:58,288 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0=7} Honda state: {ULTIMATE.start_main_~s__hit~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,308 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,308 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,311 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 09:22:58,311 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0=-8} Honda state: {ULTIMATE.start_main_~blastFlag~0=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,326 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 09:22:58,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,346 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 09:22:58,361 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,361 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,361 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,362 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,362 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 09:22:58,362 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,362 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,362 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,362 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration2_Loop [2018-12-09 09:22:58,362 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,362 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,403 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,403 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 09:22:58,404 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 [2018-12-09 09:22:58,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,404 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,404 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-09 09:22:58,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,405 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-09 09:22:58,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,406 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 09:22:58,406 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 [2018-12-09 09:22:58,406 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,407 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,407 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,407 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-09 09:22:58,407 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,407 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-09 09:22:58,407 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,410 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 09:22:58,411 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 [2018-12-09 09:22:58,411 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,411 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,411 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,411 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 09:22:58,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,412 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 09:22:58,412 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,415 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 09:22:58,417 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 09:22:58,418 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 09:22:58,418 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 09:22:58,418 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 09:22:58,418 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 09:22:58,418 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8561 Supporting invariants [] [2018-12-09 09:22:58,418 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 09:22:58,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,454 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 09:22:58,454 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 56 transitions. cyclomatic complexity: 23 Second operand 5 states. [2018-12-09 09:22:58,487 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 56 transitions. cyclomatic complexity: 23. Second operand 5 states. Result 103 states and 154 transitions. Complement of second has 7 states. [2018-12-09 09:22:58,488 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 [2018-12-09 09:22:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 09:22:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 09:22:58,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 5 letters. [2018-12-09 09:22:58,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 7 letters. Loop has 5 letters. [2018-12-09 09:22:58,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 10 letters. [2018-12-09 09:22:58,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 154 transitions. [2018-12-09 09:22:58,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-12-09 09:22:58,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 76 states and 120 transitions. [2018-12-09 09:22:58,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-12-09 09:22:58,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-12-09 09:22:58,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 120 transitions. [2018-12-09 09:22:58,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:58,493 INFO L705 BuchiCegarLoop]: Abstraction has 76 states and 120 transitions. [2018-12-09 09:22:58,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 120 transitions. [2018-12-09 09:22:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 53. [2018-12-09 09:22:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-09 09:22:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 85 transitions. [2018-12-09 09:22:58,496 INFO L728 BuchiCegarLoop]: Abstraction has 53 states and 85 transitions. [2018-12-09 09:22:58,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 09:22:58,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:22:58,498 INFO L87 Difference]: Start difference. First operand 53 states and 85 transitions. Second operand 3 states. [2018-12-09 09:22:58,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:22:58,518 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2018-12-09 09:22:58,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 09:22:58,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 127 transitions. [2018-12-09 09:22:58,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2018-12-09 09:22:58,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 86 states and 124 transitions. [2018-12-09 09:22:58,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2018-12-09 09:22:58,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2018-12-09 09:22:58,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 124 transitions. [2018-12-09 09:22:58,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:58,521 INFO L705 BuchiCegarLoop]: Abstraction has 86 states and 124 transitions. [2018-12-09 09:22:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 124 transitions. [2018-12-09 09:22:58,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2018-12-09 09:22:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-12-09 09:22:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2018-12-09 09:22:58,524 INFO L728 BuchiCegarLoop]: Abstraction has 84 states and 122 transitions. [2018-12-09 09:22:58,524 INFO L608 BuchiCegarLoop]: Abstraction has 84 states and 122 transitions. [2018-12-09 09:22:58,524 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 09:22:58,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 122 transitions. [2018-12-09 09:22:58,525 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2018-12-09 09:22:58,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:58,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:58,526 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 09:22:58,526 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-09 09:22:58,526 INFO L794 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 477#L100 assume !false; 461#L19 [2018-12-09 09:22:58,526 INFO L796 eck$LassoCheckResult]: Loop: 461#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 462#L25 assume !(8466 == main_~s__state~0); 468#L30 assume 8512 == main_~s__state~0; 469#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 451#L70 assume 0 != main_~tmp___1~0;main_~s__state~0 := 8466; 452#L100 assume !false; 461#L19 [2018-12-09 09:22:58,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 2 times [2018-12-09 09:22:58,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1336146262, now seen corresponding path program 1 times [2018-12-09 09:22:58,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,530 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 09:22:58,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,534 INFO L82 PathProgramCache]: Analyzing trace with hash 669100671, now seen corresponding path program 1 times [2018-12-09 09:22:58,534 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:22:58,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 09:22:58,566 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,566 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,566 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,566 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,566 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 09:22:58,566 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,566 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,566 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,566 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration3_Loop [2018-12-09 09:22:58,566 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,566 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,603 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,603 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,606 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,606 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,610 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 09:22:58,611 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-8, ULTIMATE.start_main_~tmp___1~0=-8} Honda state: {ULTIMATE.start_main_#t~nondet1=-8, ULTIMATE.start_main_~tmp___1~0=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,626 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,626 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,643 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 09:22:58,643 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,647 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 09:22:58,660 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,660 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,660 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,660 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,660 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 09:22:58,660 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,660 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,660 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,660 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration3_Loop [2018-12-09 09:22:58,660 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,660 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,700 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,701 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 09:22:58,701 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 [2018-12-09 09:22:58,702 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,702 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,702 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,702 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-09 09:22:58,702 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,702 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-09 09:22:58,703 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,706 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 09:22:58,707 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 [2018-12-09 09:22:58,707 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,707 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,707 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,707 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 09:22:58,707 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,707 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 09:22:58,708 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,710 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 09:22:58,711 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 09:22:58,711 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 09:22:58,712 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 09:22:58,712 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 09:22:58,712 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 09:22:58,712 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = 1*ULTIMATE.start_main_~s__state~0 Supporting invariants [] [2018-12-09 09:22:58,712 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 09:22:58,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,740 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 09:22:58,740 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 122 transitions. cyclomatic complexity: 44 Second operand 5 states. [2018-12-09 09:22:58,781 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 122 transitions. cyclomatic complexity: 44. Second operand 5 states. Result 169 states and 231 transitions. Complement of second has 9 states. [2018-12-09 09:22:58,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-09 09:22:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 09:22:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-12-09 09:22:58,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 2 letters. Loop has 6 letters. [2018-12-09 09:22:58,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 8 letters. Loop has 6 letters. [2018-12-09 09:22:58,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 2 letters. Loop has 12 letters. [2018-12-09 09:22:58,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:58,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 231 transitions. [2018-12-09 09:22:58,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2018-12-09 09:22:58,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 140 states and 195 transitions. [2018-12-09 09:22:58,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2018-12-09 09:22:58,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-12-09 09:22:58,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 195 transitions. [2018-12-09 09:22:58,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:58,785 INFO L705 BuchiCegarLoop]: Abstraction has 140 states and 195 transitions. [2018-12-09 09:22:58,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 195 transitions. [2018-12-09 09:22:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 104. [2018-12-09 09:22:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-12-09 09:22:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2018-12-09 09:22:58,789 INFO L728 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2018-12-09 09:22:58,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 09:22:58,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:22:58,789 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. Second operand 3 states. [2018-12-09 09:22:58,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:22:58,800 INFO L93 Difference]: Finished difference Result 64 states and 93 transitions. [2018-12-09 09:22:58,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 09:22:58,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 93 transitions. [2018-12-09 09:22:58,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2018-12-09 09:22:58,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 60 states and 89 transitions. [2018-12-09 09:22:58,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-09 09:22:58,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-12-09 09:22:58,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 89 transitions. [2018-12-09 09:22:58,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:58,802 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 89 transitions. [2018-12-09 09:22:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 89 transitions. [2018-12-09 09:22:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-12-09 09:22:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-12-09 09:22:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2018-12-09 09:22:58,804 INFO L728 BuchiCegarLoop]: Abstraction has 60 states and 89 transitions. [2018-12-09 09:22:58,804 INFO L608 BuchiCegarLoop]: Abstraction has 60 states and 89 transitions. [2018-12-09 09:22:58,804 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 09:22:58,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 89 transitions. [2018-12-09 09:22:58,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2018-12-09 09:22:58,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:58,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:58,805 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-12-09 09:22:58,805 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-09 09:22:58,805 INFO L794 eck$LassoCheckResult]: Stem: 952#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 953#L100 assume !false; 942#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 943#L25 assume 8466 == main_~s__state~0; 924#L26 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 2; 925#L58-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 963#L100 assume !false; 962#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 954#L25 assume !(8466 == main_~s__state~0); 944#L30 [2018-12-09 09:22:58,805 INFO L796 eck$LassoCheckResult]: Loop: 944#L30 assume 8512 == main_~s__state~0; 945#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 926#L70 assume !(0 != main_~tmp___1~0);main_~s__state~0 := 8640; 928#L100 assume !false; 961#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 960#L25 assume !(8466 == main_~s__state~0); 944#L30 [2018-12-09 09:22:58,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,806 INFO L82 PathProgramCache]: Analyzing trace with hash -775328166, now seen corresponding path program 1 times [2018-12-09 09:22:58,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1593798804, now seen corresponding path program 1 times [2018-12-09 09:22:58,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1200158765, now seen corresponding path program 1 times [2018-12-09 09:22:58,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:58,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:58,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:58,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:58,843 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,843 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 09:22:58,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,843 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,843 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,843 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration4_Loop [2018-12-09 09:22:58,843 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,843 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,870 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,870 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,872 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 09:22:58,872 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/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 [2018-12-09 09:22:58,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 09:22:58,895 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 09:22:58,898 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 09:22:58,910 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 09:22:58,910 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 09:22:58,911 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 09:22:58,911 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 09:22:58,911 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 09:22:58,911 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 09:22:58,911 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 09:22:58,911 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 09:22:58,911 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration4_Loop [2018-12-09 09:22:58,911 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 09:22:58,911 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 09:22:58,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 09:22:58,942 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 09:22:58,942 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 09:22:58,942 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 [2018-12-09 09:22:58,942 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 09:22:58,942 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 09:22:58,943 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 09:22:58,943 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 09:22:58,943 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 09:22:58,943 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 09:22:58,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 09:22:58,945 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 09:22:58,947 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 09:22:58,947 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 09:22:58,947 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 09:22:58,947 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 09:22:58,947 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 09:22:58,947 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8576 Supporting invariants [] [2018-12-09 09:22:58,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 09:22:58,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:22:58,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:22:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:22:58,972 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 09:22:58,972 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 89 transitions. cyclomatic complexity: 33 Second operand 4 states. [2018-12-09 09:22:59,018 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 89 transitions. cyclomatic complexity: 33. Second operand 4 states. Result 182 states and 280 transitions. Complement of second has 9 states. [2018-12-09 09:22:59,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-09 09:22:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 09:22:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2018-12-09 09:22:59,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 9 letters. Loop has 6 letters. [2018-12-09 09:22:59,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:59,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 15 letters. Loop has 6 letters. [2018-12-09 09:22:59,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:59,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 9 letters. Loop has 12 letters. [2018-12-09 09:22:59,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 09:22:59,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 280 transitions. [2018-12-09 09:22:59,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2018-12-09 09:22:59,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 162 states and 244 transitions. [2018-12-09 09:22:59,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2018-12-09 09:22:59,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2018-12-09 09:22:59,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 162 states and 244 transitions. [2018-12-09 09:22:59,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 09:22:59,023 INFO L705 BuchiCegarLoop]: Abstraction has 162 states and 244 transitions. [2018-12-09 09:22:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states and 244 transitions. [2018-12-09 09:22:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 124. [2018-12-09 09:22:59,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-09 09:22:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2018-12-09 09:22:59,028 INFO L728 BuchiCegarLoop]: Abstraction has 124 states and 182 transitions. [2018-12-09 09:22:59,028 INFO L608 BuchiCegarLoop]: Abstraction has 124 states and 182 transitions. [2018-12-09 09:22:59,028 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 09:22:59,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 182 transitions. [2018-12-09 09:22:59,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2018-12-09 09:22:59,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 09:22:59,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 09:22:59,030 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-12-09 09:22:59,030 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:22:59,030 INFO L794 eck$LassoCheckResult]: Stem: 1266#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 1267#L100 assume !false; 1313#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1314#L25 assume 8466 == main_~s__state~0; 1309#L26 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 2; 1307#L58-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 1285#L100 assume !false; 1282#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1272#L25 assume !(8466 == main_~s__state~0); 1273#L30 assume 8512 == main_~s__state~0; 1262#L31 [2018-12-09 09:22:59,030 INFO L796 eck$LassoCheckResult]: Loop: 1262#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 1243#L70 assume 0 != main_~tmp___1~0;main_~s__state~0 := 8466; 1244#L100 assume !false; 1255#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1256#L25 assume 8466 == main_~s__state~0; 1238#L26 assume !(0 == main_~blastFlag~0); 1239#L58-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 1301#L100 assume !false; 1293#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1289#L25 assume !(8466 == main_~s__state~0); 1261#L30 assume 8512 == main_~s__state~0; 1262#L31 [2018-12-09 09:22:59,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:59,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1734630653, now seen corresponding path program 1 times [2018-12-09 09:22:59,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:59,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:59,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:59,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:59,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1859066665, now seen corresponding path program 1 times [2018-12-09 09:22:59,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:59,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:59,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:59,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:22:59,042 INFO L82 PathProgramCache]: Analyzing trace with hash -845557157, now seen corresponding path program 1 times [2018-12-09 09:22:59,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 09:22:59,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 09:22:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:22:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:22:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:22:59,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 09:22:59 BoogieIcfgContainer [2018-12-09 09:22:59,104 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 09:22:59,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:22:59,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:22:59,104 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:22:59,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:22:57" (3/4) ... [2018-12-09 09:22:59,106 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-09 09:22:59,132 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5730d541-9dfd-4038-8c5a-5830c76d7d26/bin-2019/uautomizer/witness.graphml [2018-12-09 09:22:59,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:22:59,133 INFO L168 Benchmark]: Toolchain (without parser) took 1792.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -92.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,134 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:22:59,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,135 INFO L168 Benchmark]: Boogie Preprocessor took 43.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,135 INFO L168 Benchmark]: RCFGBuilder took 122.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,135 INFO L168 Benchmark]: BuchiAutomizer took 1426.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,135 INFO L168 Benchmark]: Witness Printer took 28.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-12-09 09:22:59,137 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 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 19.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 122.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1426.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 28.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 4 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8561 and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8576 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s 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 0. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 101 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 4. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 143 SDtfs, 145 SDslu, 114 SDs, 0 SdLazy, 176 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf97 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq191 hnf89 smp100 dnf119 smp94 tf112 neg98 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 30]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@434fdb4f=0, \result=0, tmp___1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6abd36cf=1, s__hit=0, blastFlag=2, s__state=8512} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 30]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int s__state ; [L11] int s__hit = __VERIFIER_nondet_int() ; [L12] int blastFlag ; [L13] int tmp___1; [L15] s__state = 8466 [L16] blastFlag = 0 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND TRUE s__state == 8466 [L58] COND TRUE blastFlag == 0 [L59] blastFlag = 2 [L61] COND FALSE !(\read(s__hit)) [L64] s__state = 8512 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND FALSE !(s__state == 8466) [L30] COND TRUE s__state == 8512 Loop: [L69] tmp___1 = __VERIFIER_nondet_int() [L70] COND TRUE \read(tmp___1) [L71] s__state = 8466 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND TRUE s__state == 8466 [L58] COND FALSE !(blastFlag == 0) [L61] COND FALSE !(\read(s__hit)) [L64] s__state = 8512 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND FALSE !(s__state == 8466) [L30] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...