./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b2483ed4878f440f5477fb40e4fe96958613e0f ............................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:04:25,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:04:25,313 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:04:25,319 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:04:25,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:04:25,320 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:04:25,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:04:25,322 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:04:25,323 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:04:25,324 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:04:25,324 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:04:25,324 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:04:25,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:04:25,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:04:25,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:04:25,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:04:25,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:04:25,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:04:25,330 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:04:25,331 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:04:25,332 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:04:25,333 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:04:25,334 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:04:25,334 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:04:25,335 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:04:25,335 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:04:25,336 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:04:25,337 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:04:25,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:04:25,338 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:04:25,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:04:25,338 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:04:25,339 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:04:25,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:04:25,339 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:04:25,340 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:04:25,340 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:04:25,347 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:04:25,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:04:25,348 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:04:25,348 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:04:25,348 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:04:25,348 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:04:25,348 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:04:25,348 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:04:25,349 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:04:25,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:04:25,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:04:25,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:04:25,351 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/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(G ! call(__VERIFIER_error())) ) 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 -> 6b2483ed4878f440f5477fb40e4fe96958613e0f [2018-11-28 12:04:25,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:04:25,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:04:25,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:04:25,388 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:04:25,388 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:04:25,389 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 12:04:25,429 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/data/cdc534e48/692365e1f97d4b1b93972b124c1bbaea/FLAG9e1f925d3 [2018-11-28 12:04:25,828 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:04:25,828 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/sv-benchmarks/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 12:04:25,832 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/data/cdc534e48/692365e1f97d4b1b93972b124c1bbaea/FLAG9e1f925d3 [2018-11-28 12:04:25,842 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/data/cdc534e48/692365e1f97d4b1b93972b124c1bbaea [2018-11-28 12:04:25,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:04:25,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:04:25,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:04:25,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:04:25,848 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:04:25,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:25,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebfdb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25, skipping insertion in model container [2018-11-28 12:04:25,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:25,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:04:25,866 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:04:25,966 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:04:25,969 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:04:25,981 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:04:25,989 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:04:25,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25 WrapperNode [2018-11-28 12:04:25,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:04:25,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:04:25,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:04:25,990 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:04:25,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:25,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:04:26,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:04:26,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:04:26,004 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:04:26,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... [2018-11-28 12:04:26,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:04:26,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:04:26,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:04:26,019 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:04:26,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:04:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:04:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:04:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:04:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:04:26,236 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:04:26,236 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:04:26,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:04:26 BoogieIcfgContainer [2018-11-28 12:04:26,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:04:26,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:04:26,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:04:26,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:04:26,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:04:25" (1/3) ... [2018-11-28 12:04:26,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489689f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:04:26, skipping insertion in model container [2018-11-28 12:04:26,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:04:25" (2/3) ... [2018-11-28 12:04:26,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489689f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:04:26, skipping insertion in model container [2018-11-28 12:04:26,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:04:26" (3/3) ... [2018-11-28 12:04:26,244 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 12:04:26,254 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:04:26,261 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:04:26,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:04:26,303 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:04:26,304 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:04:26,304 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:04:26,304 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:04:26,304 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:04:26,304 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:04:26,304 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:04:26,304 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:04:26,304 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:04:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 12:04:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:04:26,325 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:04:26,325 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:04:26,327 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:04:26,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:04:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2018-11-28 12:04:26,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:04:26,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:04:26,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:26,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:04:26,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:04:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:26,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:04:26,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:04:26,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:04:26,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:04:26,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:04:26,696 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2018-11-28 12:04:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:04:26,845 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-11-28 12:04:26,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:04:26,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 12:04:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:04:26,852 INFO L225 Difference]: With dead ends: 47 [2018-11-28 12:04:26,852 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 12:04:26,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:04:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 12:04:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 12:04:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 12:04:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-28 12:04:26,879 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-11-28 12:04:26,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:04:26,880 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-28 12:04:26,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:04:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-28 12:04:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:04:26,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:04:26,880 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:04:26,881 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:04:26,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:04:26,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2018-11-28 12:04:26,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:04:26,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:04:26,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:26,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:04:26,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:04:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:27,038 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:04:27,039 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:04:27,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:04:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:04:27,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:04:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:27,166 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:04:27,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-11-28 12:04:27,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:04:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:04:27,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:04:27,168 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 12 states. [2018-11-28 12:04:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:04:27,242 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-28 12:04:27,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:04:27,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 14 [2018-11-28 12:04:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:04:27,243 INFO L225 Difference]: With dead ends: 22 [2018-11-28 12:04:27,243 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 12:04:27,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:04:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 12:04:27,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 12:04:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 12:04:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 12:04:27,247 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-28 12:04:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:04:27,247 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 12:04:27,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:04:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 12:04:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:04:27,248 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:04:27,248 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:04:27,248 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:04:27,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:04:27,249 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2018-11-28 12:04:27,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:04:27,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:04:27,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:27,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:04:27,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:04:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:27,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:04:27,368 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:04:27,376 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:04:27,386 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:04:27,386 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:04:27,388 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:04:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:27,480 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:04:27,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-28 12:04:27,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:04:27,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:04:27,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:04:27,481 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 14 states. [2018-11-28 12:04:27,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:04:27,578 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 12:04:27,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:04:27,578 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2018-11-28 12:04:27,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:04:27,579 INFO L225 Difference]: With dead ends: 26 [2018-11-28 12:04:27,579 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 12:04:27,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-11-28 12:04:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 12:04:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 12:04:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 12:04:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 12:04:27,582 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-28 12:04:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:04:27,583 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 12:04:27,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:04:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 12:04:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:04:27,583 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:04:27,583 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:04:27,583 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:04:27,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:04:27,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2018-11-28 12:04:27,584 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:04:27,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:04:27,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:27,584 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:04:27,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:04:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:04:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:04:27,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:04:27,692 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:04:27,713 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:04:27,723 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 12:04:27,723 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:04:27,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:04:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:04:27,872 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:04:27,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2018-11-28 12:04:27,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 12:04:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 12:04:27,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:04:27,873 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2018-11-28 12:04:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:04:27,966 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-28 12:04:27,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 12:04:27,966 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-11-28 12:04:27,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:04:27,966 INFO L225 Difference]: With dead ends: 21 [2018-11-28 12:04:27,966 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:04:27,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2018-11-28 12:04:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:04:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:04:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:04:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:04:27,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-28 12:04:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:04:27,968 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:04:27,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 12:04:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:04:27,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:04:27,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:04:28,026 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:04:28,026 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:04:28,026 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:04:28,026 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:04:28,026 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:04:28,027 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:04:28,027 INFO L444 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2018-11-28 12:04:28,027 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-11-28 12:04:28,027 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-11-28 12:04:28,027 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2018-11-28 12:04:28,027 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 12:04:28,028 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-11-28 12:04:28,028 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-11-28 12:04:28,028 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-28 12:04:28,030 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-28 12:04:28,030 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 12:04:28,031 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 12:04:28,031 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 12:04:28,031 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 12:04:28,031 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 12:04:28,031 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 12:04:28,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:04:28 BoogieIcfgContainer [2018-11-28 12:04:28,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:04:28,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:04:28,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:04:28,044 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:04:28,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:04:26" (3/4) ... [2018-11-28 12:04:28,047 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:04:28,053 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:04:28,053 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:04:28,053 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:04:28,057 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 12:04:28,058 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:04:28,058 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:04:28,096 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7e3acdc7-f530-4de2-9c4e-d62886a19cf1/bin-2019/uautomizer/witness.graphml [2018-11-28 12:04:28,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:04:28,097 INFO L168 Benchmark]: Toolchain (without parser) took 2252.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 956.0 MB in the beginning and 862.3 MB in the end (delta: 93.7 MB). Peak memory consumption was 246.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:04:28,098 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:04:28,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.38 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:04:28,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:04:28,099 INFO L168 Benchmark]: Boogie Preprocessor took 14.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:04:28,099 INFO L168 Benchmark]: RCFGBuilder took 218.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:04:28,100 INFO L168 Benchmark]: TraceAbstraction took 1805.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.3 MB in the end (delta: 271.2 MB). Peak memory consumption was 271.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:04:28,100 INFO L168 Benchmark]: Witness Printer took 53.05 ms. Allocated memory is still 1.2 GB. Free memory is still 862.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:04:28,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.38 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1805.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.3 MB in the end (delta: 271.2 MB). Peak memory consumption was 271.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.05 ms. Allocated memory is still 1.2 GB. Free memory is still 862.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 38 SDslu, 302 SDs, 0 SdLazy, 304 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 33 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 33 HoareAnnotationTreeSize, 13 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 192 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 9557 SizeOfPredicates, 15 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...