/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8ccc35369aa7fc4059706b8166915b481ecdc09d ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8ccc35369aa7fc4059706b8166915b481ecdc09d ................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:45:51,076 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:45:51,078 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:45:51,091 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:45:51,091 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:45:51,093 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:45:51,094 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:45:51,096 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:45:51,098 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:45:51,099 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:45:51,100 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:45:51,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:45:51,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:45:51,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:45:51,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:45:51,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:45:51,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:45:51,109 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:45:51,111 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:45:51,113 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:45:51,114 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:45:51,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:45:51,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:45:51,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:45:51,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:45:51,121 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:45:51,122 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:45:51,123 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:45:51,124 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:45:51,126 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:45:51,126 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:45:51,127 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:45:51,127 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:45:51,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:45:51,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:45:51,130 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:45:51,131 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:45:51,160 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:45:51,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:45:51,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:45:51,164 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:45:51,165 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:45:51,168 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:45:51,169 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:45:51,169 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:45:51,169 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:45:51,169 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:45:51,170 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:45:51,170 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:45:51,170 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:45:51,170 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:45:51,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:45:51,173 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:45:51,173 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:45:51,173 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:45:51,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:45:51,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:45:51,174 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:45:51,174 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:45:51,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:45:51,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:45:51,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:45:51,174 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:45:51,175 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:45:51,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:45:51,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:45:51,175 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-09-20 13:45:51,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:45:51,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:45:51,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:45:51,259 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:45:51,259 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:45:51,260 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:51,638 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fdface0/010d21c39cb348628f0c5ff40a1bacf9/FLAG5b069fa97 [2018-09-20 13:45:51,822 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:45:51,823 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:51,834 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fdface0/010d21c39cb348628f0c5ff40a1bacf9/FLAG5b069fa97 [2018-09-20 13:45:51,850 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fdface0/010d21c39cb348628f0c5ff40a1bacf9 [2018-09-20 13:45:51,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:45:51,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:45:51,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:51,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:45:51,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:45:51,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:51" (1/1) ... [2018-09-20 13:45:51,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bc8419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:51, skipping insertion in model container [2018-09-20 13:45:51,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:51" (1/1) ... [2018-09-20 13:45:51,882 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:45:52,124 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:52,150 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:45:52,172 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:52,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52 WrapperNode [2018-09-20 13:45:52,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:52,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:45:52,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:45:52,192 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:45:52,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... [2018-09-20 13:45:52,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:45:52,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:45:52,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:45:52,223 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:45:52,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:45:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:45:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:45:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-09-20 13:45:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-09-20 13:45:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-09-20 13:45:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:45:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:45:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-09-20 13:45:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-09-20 13:45:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-09-20 13:45:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:45:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:45:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:45:52,630 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:45:52,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:52 BoogieIcfgContainer [2018-09-20 13:45:52,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:45:52,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:45:52,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:45:52,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:45:52,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:45:51" (1/3) ... [2018-09-20 13:45:52,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261b936e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:52, skipping insertion in model container [2018-09-20 13:45:52,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:52" (2/3) ... [2018-09-20 13:45:52,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261b936e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:52, skipping insertion in model container [2018-09-20 13:45:52,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:52" (3/3) ... [2018-09-20 13:45:52,641 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:52,659 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:45:52,668 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-09-20 13:45:52,759 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:45:52,760 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:45:52,760 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:45:52,760 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:45:52,760 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:45:52,760 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:45:52,760 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:45:52,761 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:45:52,761 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:45:52,778 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-09-20 13:45:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-20 13:45:52,784 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:52,785 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:52,788 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:52,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-09-20 13:45:52,796 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:45:52,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:45:52,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:45:52,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:45:52,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:45:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:45:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:45:52,911 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:45:52,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:45:52 BoogieIcfgContainer [2018-09-20 13:45:52,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:45:52,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:45:52,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:45:52,935 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:45:52,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:52" (3/4) ... [2018-09-20 13:45:52,940 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:45:52,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:45:52,941 INFO L168 Benchmark]: Toolchain (without parser) took 1086.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:45:52,943 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-20 13:45:52,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.82 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:52,946 INFO L168 Benchmark]: Boogie Preprocessor took 29.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:45:52,946 INFO L168 Benchmark]: RCFGBuilder took 408.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:52,948 INFO L168 Benchmark]: TraceAbstraction took 301.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:52,949 INFO L168 Benchmark]: Witness Printer took 5.78 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. [2018-09-20 13:45:52,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 333.82 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 408.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 301.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.78 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L34] CALL multiply() [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. UNSAFE Result, 0.1s 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=29occurred 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, 8 NumberOfCodeBlocks, 8 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 0.1.23-40ef509 [2018-09-20 13:45:55,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:45:55,358 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:45:55,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:45:55,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:45:55,378 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:45:55,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:45:55,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:45:55,382 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:45:55,383 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:45:55,384 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:45:55,384 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:45:55,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:45:55,386 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:45:55,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:45:55,388 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:45:55,389 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:45:55,391 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:45:55,393 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:45:55,395 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:45:55,396 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:45:55,397 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:45:55,400 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:45:55,400 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:45:55,401 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:45:55,402 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:45:55,403 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:45:55,404 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:45:55,405 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:45:55,406 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:45:55,406 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:45:55,407 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:45:55,407 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:45:55,407 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:45:55,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:45:55,409 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:45:55,410 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:45:55,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:45:55,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:45:55,440 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:45:55,440 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:45:55,441 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:45:55,442 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:45:55,443 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:45:55,443 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:45:55,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:45:55,445 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:45:55,445 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:45:55,445 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:45:55,445 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:45:55,445 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:45:55,448 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:45:55,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:45:55,449 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:45:55,449 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:45:55,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:45:55,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:45:55,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:45:55,450 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:45:55,450 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:45:55,450 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:45:55,450 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:45:55,450 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:45:55,452 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-09-20 13:45:55,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:45:55,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:45:55,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:45:55,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:45:55,549 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:45:55,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:55,910 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788d58368/c94237b2775e4eb8a278f1b913f4ee7a/FLAGbd4459198 [2018-09-20 13:45:56,035 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:45:56,035 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:56,041 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788d58368/c94237b2775e4eb8a278f1b913f4ee7a/FLAGbd4459198 [2018-09-20 13:45:56,058 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788d58368/c94237b2775e4eb8a278f1b913f4ee7a [2018-09-20 13:45:56,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:45:56,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:45:56,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:56,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:45:56,074 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:45:56,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5581018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56, skipping insertion in model container [2018-09-20 13:45:56,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,091 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:45:56,364 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:56,391 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:45:56,409 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:56,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56 WrapperNode [2018-09-20 13:45:56,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:56,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:45:56,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:45:56,431 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:45:56,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... [2018-09-20 13:45:56,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:45:56,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:45:56,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:45:56,479 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:45:56,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:45:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:45:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:45:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-09-20 13:45:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-09-20 13:45:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-09-20 13:45:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:45:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:45:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-09-20 13:45:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-09-20 13:45:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-09-20 13:45:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:45:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:45:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:45:56,969 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:45:56,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:56 BoogieIcfgContainer [2018-09-20 13:45:56,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:45:56,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:45:56,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:45:56,982 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:45:56,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:45:56" (1/3) ... [2018-09-20 13:45:56,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:56, skipping insertion in model container [2018-09-20 13:45:56,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:56" (2/3) ... [2018-09-20 13:45:56,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:56, skipping insertion in model container [2018-09-20 13:45:56,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:56" (3/3) ... [2018-09-20 13:45:56,999 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-09-20 13:45:57,013 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:45:57,027 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-09-20 13:45:57,096 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:45:57,097 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:45:57,097 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:45:57,097 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:45:57,098 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:45:57,098 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:45:57,098 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:45:57,098 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:45:57,098 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:45:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-09-20 13:45:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-20 13:45:57,140 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:57,141 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:57,143 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:57,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-09-20 13:45:57,158 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:45:57,160 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 13:45:57,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 13:45:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:45:57,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:45:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 13:45:57,386 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:45:57,402 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:45:57,403 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:45:57,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:45:57,420 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:45:57,421 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:57,423 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-09-20 13:45:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:45:57,462 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-09-20 13:45:57,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:45:57,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-20 13:45:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:45:57,477 INFO L225 Difference]: With dead ends: 49 [2018-09-20 13:45:57,478 INFO L226 Difference]: Without dead ends: 21 [2018-09-20 13:45:57,483 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-20 13:45:57,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-09-20 13:45:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-20 13:45:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-09-20 13:45:57,527 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-09-20 13:45:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:45:57,528 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-09-20 13:45:57,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:45:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-09-20 13:45:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-20 13:45:57,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:57,529 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:57,529 INFO L423 AbstractCegarLoop]: === Iteration 2 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:57,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1652764716, now seen corresponding path program 1 times [2018-09-20 13:45:57,530 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:45:57,530 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 13:45:57,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:45:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:45:57,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:45:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 13:45:57,860 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:45:57,876 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:45:57,877 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:45:57,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:45:57,880 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:45:57,880 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:57,881 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 3 states. [2018-09-20 13:45:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:45:57,903 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-09-20 13:45:57,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:45:57,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-20 13:45:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:45:57,907 INFO L225 Difference]: With dead ends: 21 [2018-09-20 13:45:57,907 INFO L226 Difference]: Without dead ends: 19 [2018-09-20 13:45:57,908 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:57,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-20 13:45:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-20 13:45:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-20 13:45:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-09-20 13:45:57,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 13 [2018-09-20 13:45:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:45:57,919 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-09-20 13:45:57,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:45:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-09-20 13:45:57,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-20 13:45:57,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:57,921 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:57,922 INFO L423 AbstractCegarLoop]: === Iteration 3 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:57,922 INFO L82 PathProgramCache]: Analyzing trace with hash -207607829, now seen corresponding path program 1 times [2018-09-20 13:45:57,922 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:45:57,922 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 13:45:57,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:45:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:45:58,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:45:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 13:45:58,292 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:45:58,307 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:45:58,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:45:58,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:45:58,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:45:58,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:58,308 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-09-20 13:45:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:45:58,311 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-09-20 13:45:58,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:45:58,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-09-20 13:45:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:45:58,313 INFO L225 Difference]: With dead ends: 19 [2018-09-20 13:45:58,313 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 13:45:58,314 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 13:45:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 13:45:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 13:45:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 13:45:58,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-09-20 13:45:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:45:58,316 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 13:45:58,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:45:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 13:45:58,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 13:45:58,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 13:45:58,382 INFO L426 ceAbstractionStarter]: For program point castEXIT(lines 23 30) no Hoare annotation was computed. [2018-09-20 13:45:58,382 INFO L426 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-09-20 13:45:58,382 INFO L426 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-09-20 13:45:58,383 INFO L429 ceAbstractionStarter]: At program point castENTRY(lines 23 30) the Hoare annotation is: true [2018-09-20 13:45:58,383 INFO L426 ceAbstractionStarter]: For program point L29-3(lines 23 30) no Hoare annotation was computed. [2018-09-20 13:45:58,383 INFO L426 ceAbstractionStarter]: For program point castErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2018-09-20 13:45:58,383 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 13:45:58,383 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:45:58,383 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:45:58,383 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 13:45:58,384 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 13:45:58,384 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 13:45:58,384 INFO L426 ceAbstractionStarter]: For program point L20-3(lines 13 21) no Hoare annotation was computed. [2018-09-20 13:45:58,384 INFO L426 ceAbstractionStarter]: For program point divideErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-09-20 13:45:58,384 INFO L429 ceAbstractionStarter]: At program point divideENTRY(lines 13 21) the Hoare annotation is: true [2018-09-20 13:45:58,384 INFO L426 ceAbstractionStarter]: For program point divideEXIT(lines 13 21) no Hoare annotation was computed. [2018-09-20 13:45:58,384 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 13:45:58,385 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 13:45:58,385 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 32 37) the Hoare annotation is: true [2018-09-20 13:45:58,385 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 32 37) no Hoare annotation was computed. [2018-09-20 13:45:58,385 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 32 37) no Hoare annotation was computed. [2018-09-20 13:45:58,385 INFO L429 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: true [2018-09-20 13:45:58,385 INFO L429 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: true [2018-09-20 13:45:58,385 INFO L429 ceAbstractionStarter]: At program point multiplyENTRY(lines 3 11) the Hoare annotation is: true [2018-09-20 13:45:58,386 INFO L426 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-09-20 13:45:58,386 INFO L426 ceAbstractionStarter]: For program point multiplyEXIT(lines 3 11) no Hoare annotation was computed. [2018-09-20 13:45:58,386 INFO L426 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-09-20 13:45:58,386 INFO L426 ceAbstractionStarter]: For program point L10-3(lines 3 11) no Hoare annotation was computed. [2018-09-20 13:45:58,386 INFO L426 ceAbstractionStarter]: For program point multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-09-20 13:45:58,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:45:58 BoogieIcfgContainer [2018-09-20 13:45:58,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:45:58,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:45:58,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:45:58,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:45:58,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:56" (3/4) ... [2018-09-20 13:45:58,395 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 13:45:58,402 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure cast [2018-09-20 13:45:58,403 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 13:45:58,403 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure divide [2018-09-20 13:45:58,403 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 13:45:58,403 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure multiply [2018-09-20 13:45:58,407 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 13:45:58,407 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 13:45:58,408 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:45:58,455 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:45:58,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:45:58,456 INFO L168 Benchmark]: Toolchain (without parser) took 2393.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -113.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:58,458 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-20 13:45:58,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:58,459 INFO L168 Benchmark]: Boogie Preprocessor took 48.19 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:58,460 INFO L168 Benchmark]: RCFGBuilder took 492.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:58,461 INFO L168 Benchmark]: TraceAbstraction took 1418.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:58,462 INFO L168 Benchmark]: Witness Printer took 64.61 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. [2018-09-20 13:45:58,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 362.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.19 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 492.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1418.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. * Witness Printer took 64.61 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: 29]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 4 SDslu, 53 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 9 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 755 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...