./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/count_up_down_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/count_up_down_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/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 b37ffbbc4572f61f8e88c551dd4e5228bb86f8a0 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:38:20,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:38:20,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:38:20,454 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:38:20,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:38:20,455 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:38:20,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:38:20,457 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:38:20,458 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:38:20,459 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:38:20,459 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:38:20,459 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:38:20,460 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:38:20,461 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:38:20,461 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:38:20,462 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:38:20,462 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:38:20,463 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:38:20,464 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:38:20,465 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:38:20,466 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:38:20,467 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:38:20,468 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:38:20,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:38:20,469 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:38:20,469 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:38:20,470 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:38:20,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:38:20,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:38:20,472 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:38:20,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:38:20,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:38:20,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:38:20,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:38:20,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:38:20,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:38:20,474 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 12:38:20,483 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:38:20,484 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:38:20,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:38:20,484 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:38:20,485 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:38:20,485 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:38:20,485 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:38:20,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:38:20,485 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:38:20,486 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:38:20,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:38:20,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:38:20,487 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:38:20,488 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:38:20,488 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:38:20,488 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:38:20,488 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:38:20,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:38:20,488 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_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/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 -> b37ffbbc4572f61f8e88c551dd4e5228bb86f8a0 [2018-11-23 12:38:20,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:38:20,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:38:20,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:38:20,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:38:20,525 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:38:20,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/../../sv-benchmarks/c/loops/count_up_down_true-unreach-call_true-termination.i [2018-11-23 12:38:20,571 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/data/25cd65989/977b9a38f7704d46bbe7ba70674847fa/FLAG816953ecd [2018-11-23 12:38:20,889 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:38:20,890 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/sv-benchmarks/c/loops/count_up_down_true-unreach-call_true-termination.i [2018-11-23 12:38:20,895 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/data/25cd65989/977b9a38f7704d46bbe7ba70674847fa/FLAG816953ecd [2018-11-23 12:38:20,907 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/data/25cd65989/977b9a38f7704d46bbe7ba70674847fa [2018-11-23 12:38:20,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:38:20,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:38:20,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:38:20,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:38:20,914 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:38:20,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:20" (1/1) ... [2018-11-23 12:38:20,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:20, skipping insertion in model container [2018-11-23 12:38:20,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:20" (1/1) ... [2018-11-23 12:38:20,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:38:20,942 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:38:21,071 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:38:21,073 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:38:21,083 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:38:21,093 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:38:21,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21 WrapperNode [2018-11-23 12:38:21,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:38:21,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:38:21,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:38:21,094 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:38:21,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:38:21,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:38:21,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:38:21,107 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:38:21,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... [2018-11-23 12:38:21,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:38:21,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:38:21,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:38:21,118 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:38:21,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/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 [2018-11-23 12:38:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:38:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:38:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:38:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:38:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:38:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:38:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 12:38:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 12:38:21,269 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:38:21,269 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 12:38:21,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:21 BoogieIcfgContainer [2018-11-23 12:38:21,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:38:21,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:38:21,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:38:21,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:38:21,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:38:20" (1/3) ... [2018-11-23 12:38:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cda31fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:38:21, skipping insertion in model container [2018-11-23 12:38:21,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:21" (2/3) ... [2018-11-23 12:38:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cda31fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:38:21, skipping insertion in model container [2018-11-23 12:38:21,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:21" (3/3) ... [2018-11-23 12:38:21,275 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down_true-unreach-call_true-termination.i [2018-11-23 12:38:21,280 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:38:21,284 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:38:21,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:38:21,314 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:38:21,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:38:21,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:38:21,315 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:38:21,315 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:38:21,315 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:38:21,315 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:38:21,315 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:38:21,315 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:38:21,327 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 12:38:21,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 12:38:21,331 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:21,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:21,333 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:21,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:21,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2018-11-23 12:38:21,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:38:21,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:38:21,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:21,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:21,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:21,576 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 24 [2018-11-23 12:38:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:38:21,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:38:21,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:38:21,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:38:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:38:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:38:21,670 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2018-11-23 12:38:21,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:21,752 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2018-11-23 12:38:21,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:38:21,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-11-23 12:38:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:21,760 INFO L225 Difference]: With dead ends: 36 [2018-11-23 12:38:21,761 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 12:38:21,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:38:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 12:38:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 12:38:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 12:38:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-23 12:38:21,792 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-23 12:38:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:21,792 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-23 12:38:21,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:38:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 12:38:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 12:38:21,793 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:21,793 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:21,793 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:21,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:21,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2018-11-23 12:38:21,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:38:21,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:38:21,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:21,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:21,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:38:21,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:21,926 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/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 [2018-11-23 12:38:21,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:21,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:38:22,047 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:38:22,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-23 12:38:22,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 12:38:22,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 12:38:22,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:38:22,048 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2018-11-23 12:38:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:22,107 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-23 12:38:22,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 12:38:22,108 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2018-11-23 12:38:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:22,108 INFO L225 Difference]: With dead ends: 20 [2018-11-23 12:38:22,108 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 12:38:22,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-23 12:38:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 12:38:22,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 12:38:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 12:38:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-23 12:38:22,113 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-23 12:38:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:22,113 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-23 12:38:22,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 12:38:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-23 12:38:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 12:38:22,113 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:22,113 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:22,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:22,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:22,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1004266255, now seen corresponding path program 2 times [2018-11-23 12:38:22,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:38:22,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:38:22,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:22,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:22,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:38:22,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:22,393 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/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 [2018-11-23 12:38:22,409 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 12:38:22,420 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 12:38:22,421 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 12:38:22,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:38:22,523 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:38:22,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-11-23 12:38:22,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 12:38:22,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 12:38:22,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-11-23 12:38:22,524 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-11-23 12:38:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:22,707 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-23 12:38:22,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 12:38:22,707 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-11-23 12:38:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:22,707 INFO L225 Difference]: With dead ends: 16 [2018-11-23 12:38:22,707 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:38:22,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:38:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:38:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:38:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:38:22,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:38:22,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 12:38:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:22,709 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:38:22,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 12:38:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:38:22,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:38:22,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:38:22,813 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 12:38:22,813 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:38:22,813 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:38:22,813 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 12:38:22,813 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:38:22,813 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:38:22,813 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 21) the Hoare annotation is: true [2018-11-23 12:38:22,814 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 21) no Hoare annotation was computed. [2018-11-23 12:38:22,814 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 19) the Hoare annotation is: (let ((.cse2 (+ main_~x~0 main_~y~0))) (let ((.cse0 (<= main_~n~0 .cse2)) (.cse1 (<= .cse2 main_~n~0))) (or (and (<= main_~n~0 (+ (* 4294967296 (div main_~x~0 4294967296)) 4294967295)) .cse0 .cse1 (<= 2 main_~y~0)) (and (<= 0 main_~y~0) (= main_~x~0 main_~n~0) (<= main_~y~0 0)) (and .cse0 (<= 1 main_~y~0) (< 0 (mod main_~n~0 4294967296)) .cse1 (<= main_~y~0 1))))) [2018-11-23 12:38:22,814 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 21) no Hoare annotation was computed. [2018-11-23 12:38:22,814 INFO L444 ceAbstractionStarter]: At program point L15-3(lines 15 19) the Hoare annotation is: (let ((.cse1 (+ (* 4294967296 (div main_~y~0 4294967296)) main_~n~0)) (.cse0 (+ (* 4294967296 (div main_~n~0 4294967296)) main_~y~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-11-23 12:38:22,814 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 12:38:22,814 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 12:38:22,815 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 12:38:22,815 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 12:38:22,815 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 12:38:22,815 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 12:38:22,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:38:22 BoogieIcfgContainer [2018-11-23 12:38:22,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:38:22,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:38:22,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:38:22,824 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:38:22,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:21" (3/4) ... [2018-11-23 12:38:22,827 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:38:22,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:38:22,832 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:38:22,832 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 12:38:22,834 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 12:38:22,835 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 12:38:22,835 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:38:22,861 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1eea5a88-e4f5-4c3e-a75b-1e1041d925eb/bin-2019/uautomizer/witness.graphml [2018-11-23 12:38:22,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:38:22,862 INFO L168 Benchmark]: Toolchain (without parser) took 1952.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 959.1 MB in the beginning and 946.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,862 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:38:22,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:38:22,863 INFO L168 Benchmark]: Boogie Preprocessor took 11.40 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,864 INFO L168 Benchmark]: RCFGBuilder took 150.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,864 INFO L168 Benchmark]: TraceAbstraction took 1554.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.9 MB in the end (delta: 189.2 MB). Peak memory consumption was 189.2 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,865 INFO L168 Benchmark]: Witness Printer took 37.08 ms. Allocated memory is still 1.2 GB. Free memory was 949.9 MB in the beginning and 946.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 12:38:22,867 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.40 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 150.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1554.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.9 MB in the end (delta: 189.2 MB). Peak memory consumption was 189.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.08 ms. Allocated memory is still 1.2 GB. Free memory was 949.9 MB in the beginning and 946.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. 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: 15]: Loop Invariant Derived loop invariant: ((((n <= 4294967296 * (x / 4294967296) + 4294967295 && n <= x + y) && x + y <= n) && 2 <= y) || ((0 <= y && x == n) && y <= 0)) || ((((n <= x + y && 1 <= y) && 0 < n % 4294967296) && x + y <= n) && y <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 18 SDslu, 119 SDs, 0 SdLazy, 102 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 92 HoareAnnotationTreeSize, 12 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 248 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 5005 SizeOfPredicates, 6 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...