./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/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 20673ed10b5a05371c8641d8d8a54d9346cb443e ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/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 20673ed10b5a05371c8641d8d8a54d9346cb443e .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:40:48,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:40:48,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:40:48,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:40:48,307 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:40:48,308 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:40:48,309 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:40:48,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:40:48,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:40:48,316 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:40:48,317 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:40:48,318 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:40:48,318 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:40:48,319 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:40:48,320 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:40:48,321 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:40:48,322 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:40:48,324 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:40:48,326 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:40:48,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:40:48,328 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:40:48,330 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:40:48,332 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:40:48,332 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:40:48,332 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:40:48,333 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:40:48,334 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:40:48,335 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:40:48,336 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:40:48,337 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:40:48,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:40:48,338 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:40:48,338 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:40:48,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:40:48,340 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:40:48,340 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:40:48,340 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 19:40:48,354 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:40:48,354 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:40:48,355 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:40:48,355 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:40:48,356 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:40:48,356 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:40:48,356 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:40:48,357 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:40:48,357 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:40:48,357 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:40:48,358 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:40:48,358 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:40:48,359 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:40:48,360 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:40:48,360 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:40:48,360 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:40:48,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:40:48,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:40:48,361 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:40:48,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:40:48,361 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:40:48,361 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:40:48,361 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:40:48,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:40:48,362 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_f914cb05-9246-4ad5-884b-e5ef167ad511/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 -> 20673ed10b5a05371c8641d8d8a54d9346cb443e [2018-10-26 19:40:48,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:40:48,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:40:48,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:40:48,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:40:48,412 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:40:48,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:48,468 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/90490e275/7e8db6864fcc499cbe15c4ca4f7b54e8/FLAG3930bb2f2 [2018-10-26 19:40:48,829 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:40:48,829 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:48,835 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/90490e275/7e8db6864fcc499cbe15c4ca4f7b54e8/FLAG3930bb2f2 [2018-10-26 19:40:48,848 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/90490e275/7e8db6864fcc499cbe15c4ca4f7b54e8 [2018-10-26 19:40:48,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:40:48,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:40:48,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:40:48,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:40:48,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:40:48,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:40:48" (1/1) ... [2018-10-26 19:40:48,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610ddef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:48, skipping insertion in model container [2018-10-26 19:40:48,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:40:48" (1/1) ... [2018-10-26 19:40:48,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:40:48,890 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:40:49,028 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:40:49,032 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:40:49,045 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:40:49,059 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:40:49,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49 WrapperNode [2018-10-26 19:40:49,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:40:49,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:40:49,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:40:49,060 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:40:49,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... [2018-10-26 19:40:49,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:40:49,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:40:49,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:40:49,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:40:49,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/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 [2018-10-26 19:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:40:49,534 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:40:49,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:49 BoogieIcfgContainer [2018-10-26 19:40:49,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:40:49,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:40:49,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:40:49,539 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:40:49,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:40:48" (1/3) ... [2018-10-26 19:40:49,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cf98d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:40:49, skipping insertion in model container [2018-10-26 19:40:49,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:49" (2/3) ... [2018-10-26 19:40:49,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cf98d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:40:49, skipping insertion in model container [2018-10-26 19:40:49,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:49" (3/3) ... [2018-10-26 19:40:49,544 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:49,555 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:40:49,563 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:40:49,584 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:40:49,622 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:40:49,623 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:40:49,623 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:40:49,623 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:40:49,624 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:40:49,624 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:40:49,624 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:40:49,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:40:49,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:40:49,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 19:40:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 19:40:49,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:40:49,656 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:40:49,659 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:40:49,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:40:49,668 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-10-26 19:40:49,670 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:40:49,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:40:49,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:40:49,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:40:49,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:40:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:40:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:40:49,794 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:40:49,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:40:49 BoogieIcfgContainer [2018-10-26 19:40:49,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:40:49,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:40:49,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:40:49,821 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:40:49,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:49" (3/4) ... [2018-10-26 19:40:49,826 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:40:49,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:40:49,830 INFO L168 Benchmark]: Toolchain (without parser) took 978.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 963.8 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:40:49,833 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:40:49,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.90 ms. Allocated memory is still 1.0 GB. Free memory was 963.8 MB in the beginning and 951.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:40:49,834 INFO L168 Benchmark]: Boogie Preprocessor took 30.57 ms. Allocated memory is still 1.0 GB. Free memory is still 951.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:40:49,835 INFO L168 Benchmark]: RCFGBuilder took 443.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -209.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:40:49,836 INFO L168 Benchmark]: TraceAbstraction took 284.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:40:49,836 INFO L168 Benchmark]: Witness Printer took 9.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:40:49,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.90 ms. Allocated memory is still 1.0 GB. Free memory was 963.8 MB in the beginning and 951.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.57 ms. Allocated memory is still 1.0 GB. Free memory is still 951.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 443.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -209.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Witness Printer took 9.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.399f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:40:52,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:40:52,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:40:52,050 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:40:52,050 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:40:52,051 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:40:52,052 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:40:52,054 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:40:52,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:40:52,056 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:40:52,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:40:52,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:40:52,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:40:52,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:40:52,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:40:52,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:40:52,063 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:40:52,064 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:40:52,066 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:40:52,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:40:52,069 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:40:52,070 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:40:52,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:40:52,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:40:52,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:40:52,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:40:52,075 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:40:52,076 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:40:52,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:40:52,078 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:40:52,078 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:40:52,079 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:40:52,079 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:40:52,079 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:40:52,080 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:40:52,081 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:40:52,082 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 19:40:52,095 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:40:52,095 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:40:52,096 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:40:52,096 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:40:52,097 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:40:52,097 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:40:52,098 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:40:52,098 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:40:52,098 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:40:52,098 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:40:52,099 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:40:52,100 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:40:52,100 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:40:52,100 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:40:52,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:40:52,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:40:52,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:40:52,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:40:52,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:40:52,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:40:52,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:40:52,104 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:40:52,104 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 19:40:52,104 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:40:52,104 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:40:52,104 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:40:52,104 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_f914cb05-9246-4ad5-884b-e5ef167ad511/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 -> 20673ed10b5a05371c8641d8d8a54d9346cb443e [2018-10-26 19:40:52,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:40:52,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:40:52,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:40:52,167 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:40:52,168 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:40:52,168 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:52,221 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/e2fcaa4ed/579b141a10b044318186ef099857e8f7/FLAGc28893d27 [2018-10-26 19:40:52,640 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:40:52,641 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/sv-benchmarks/c/floats-cdfpl/square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:52,645 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/e2fcaa4ed/579b141a10b044318186ef099857e8f7/FLAGc28893d27 [2018-10-26 19:40:52,660 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/data/e2fcaa4ed/579b141a10b044318186ef099857e8f7 [2018-10-26 19:40:52,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:40:52,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:40:52,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:40:52,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:40:52,669 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:40:52,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470950e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52, skipping insertion in model container [2018-10-26 19:40:52,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:40:52,708 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:40:52,867 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:40:52,874 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:40:52,891 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:40:52,906 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:40:52,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52 WrapperNode [2018-10-26 19:40:52,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:40:52,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:40:52,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:40:52,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:40:52,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... [2018-10-26 19:40:52,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:40:52,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:40:52,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:40:52,942 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:40:52,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/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 [2018-10-26 19:40:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:40:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:40:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:40:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:40:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 19:40:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 19:40:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:40:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:40:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:40:55,405 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:40:55,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:55 BoogieIcfgContainer [2018-10-26 19:40:55,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:40:55,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:40:55,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:40:55,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:40:55,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:40:52" (1/3) ... [2018-10-26 19:40:55,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470a69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:40:55, skipping insertion in model container [2018-10-26 19:40:55,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:40:52" (2/3) ... [2018-10-26 19:40:55,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470a69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:40:55, skipping insertion in model container [2018-10-26 19:40:55,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:55" (3/3) ... [2018-10-26 19:40:55,416 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6_true-unreach-call_true-termination.i [2018-10-26 19:40:55,426 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:40:55,433 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:40:55,445 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:40:55,476 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:40:55,477 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:40:55,477 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:40:55,477 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:40:55,478 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:40:55,481 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:40:55,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:40:55,482 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:40:55,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:40:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 19:40:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 19:40:55,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:40:55,508 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:40:55,510 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:40:55,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:40:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-10-26 19:40:55,522 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:40:55,522 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:40:55,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:54:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:54:20,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:54:22,354 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from false [2018-10-26 19:54:24,430 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from true [2018-10-26 19:54:36,928 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) RNE (/ 1399.0 1000.0)))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse1) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24))))))) is different from false [2018-10-26 19:54:39,021 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) RNE (/ 1399.0 1000.0)))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse1) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24))))))) is different from true [2018-10-26 19:54:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:54:39,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:54:39,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:54:39,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:54:39,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:54:39,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:54:39,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-10-26 19:54:39,071 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-10-26 19:54:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:54:39,102 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-10-26 19:54:39,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:54:39,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-10-26 19:54:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:54:39,114 INFO L225 Difference]: With dead ends: 18 [2018-10-26 19:54:39,118 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:54:39,122 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-10-26 19:54:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:54:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:54:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:54:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:54:39,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-10-26 19:54:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:54:39,153 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:54:39,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:54:39,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:54:39,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:54:39,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:54:39,245 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 19:54:39,245 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:54:39,245 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:54:39,245 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:54:39,245 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:54:39,246 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:54:39,246 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-26 19:54:39,247 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-10-26 19:54:39,247 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-10-26 19:54:39,247 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-10-26 19:54:39,247 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-10-26 19:54:39,247 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-10-26 19:54:39,247 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-10-26 19:54:39,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:54:39 BoogieIcfgContainer [2018-10-26 19:54:39,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:54:39,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:54:39,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:54:39,251 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:54:39,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:40:55" (3/4) ... [2018-10-26 19:54:39,256 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:54:39,265 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:54:39,267 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:54:39,271 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 19:54:39,272 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 19:54:39,273 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 19:54:39,317 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f914cb05-9246-4ad5-884b-e5ef167ad511/bin-2019/uautomizer/witness.graphml [2018-10-26 19:54:39,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:54:39,318 INFO L168 Benchmark]: Toolchain (without parser) took 826654.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:54:39,320 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:54:39,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:54:39,321 INFO L168 Benchmark]: Boogie Preprocessor took 33.22 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:54:39,322 INFO L168 Benchmark]: RCFGBuilder took 2463.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -233.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:54:39,323 INFO L168 Benchmark]: TraceAbstraction took 823843.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:54:39,324 INFO L168 Benchmark]: Witness Printer took 67.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:54:39,328 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.22 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2463.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -233.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 823843.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 823.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 804.5s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 1224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...