./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 8ccc35369aa7fc4059706b8166915b481ecdc09d ........................................................................................................................................................................................................................................... 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_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 8ccc35369aa7fc4059706b8166915b481ecdc09d ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:30:09,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:30:09,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:30:09,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:30:09,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:30:09,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:30:09,167 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:30:09,168 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:30:09,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:30:09,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:30:09,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:30:09,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:30:09,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:30:09,170 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:30:09,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:30:09,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:30:09,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:30:09,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:30:09,173 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:30:09,174 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:30:09,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:30:09,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:30:09,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:30:09,176 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:30:09,176 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:30:09,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:30:09,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:30:09,178 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:30:09,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:30:09,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:30:09,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:30:09,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:30:09,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:30:09,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:30:09,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:30:09,180 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:30:09,180 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 22:30:09,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:30:09,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:30:09,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:30:09,187 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:30:09,188 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 22:30:09,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:30:09,188 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:30:09,189 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:30:09,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:30:09,190 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:30:09,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:30:09,190 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_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-01 22:30:09,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:30:09,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:30:09,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:30:09,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:30:09,216 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:30:09,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:09,249 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/0556e7bf2/63a85582e2ee42d6b10ead850ede2751/FLAG792701a05 [2018-12-01 22:30:09,619 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:30:09,619 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:09,622 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/0556e7bf2/63a85582e2ee42d6b10ead850ede2751/FLAG792701a05 [2018-12-01 22:30:09,630 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/0556e7bf2/63a85582e2ee42d6b10ead850ede2751 [2018-12-01 22:30:09,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:30:09,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:30:09,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:09,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:30:09,635 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:30:09,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3ab934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09, skipping insertion in model container [2018-12-01 22:30:09,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:30:09,652 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:30:09,744 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:09,747 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:30:09,759 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:09,767 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:30:09,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09 WrapperNode [2018-12-01 22:30:09,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:09,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:09,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:30:09,768 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:30:09,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:09,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:30:09,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:30:09,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:30:09,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:30:09,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:30:09,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:30:09,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:30:09,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 [2018-12-01 22:30:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-01 22:30:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-01 22:30:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:30:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:30:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:30:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:30:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-12-01 22:30:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-12-01 22:30:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:30:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:30:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-12-01 22:30:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-12-01 22:30:09,928 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:30:09,929 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-01 22:30:09,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09 BoogieIcfgContainer [2018-12-01 22:30:09,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:30:09,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:30:09,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:30:09,931 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:30:09,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:30:09" (1/3) ... [2018-12-01 22:30:09,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f9af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:30:09, skipping insertion in model container [2018-12-01 22:30:09,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (2/3) ... [2018-12-01 22:30:09,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f9af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:30:09, skipping insertion in model container [2018-12-01 22:30:09,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09" (3/3) ... [2018-12-01 22:30:09,933 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:09,939 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:30:09,943 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-01 22:30:09,952 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-01 22:30:09,970 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 22:30:09,970 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:30:09,970 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:30:09,970 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:30:09,971 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:30:09,971 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:30:09,971 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:30:09,971 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:30:09,971 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:30:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-01 22:30:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:09,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:30:09,985 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:30:09,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:30:09,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:30:09,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-12-01 22:30:09,991 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 22:30:09,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 22:30:10,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:30:10,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:30:10,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:30:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:30:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:30:10,050 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 22:30:10,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:30:10 BoogieIcfgContainer [2018-12-01 22:30:10,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:30:10,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:30:10,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:30:10,064 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:30:10,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09" (3/4) ... [2018-12-01 22:30:10,067 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 22:30:10,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:30:10,067 INFO L168 Benchmark]: Toolchain (without parser) took 435.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:10,068 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:10,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.61 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:10,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:10,070 INFO L168 Benchmark]: Boogie Preprocessor took 10.15 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:10,070 INFO L168 Benchmark]: RCFGBuilder took 138.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:10,071 INFO L168 Benchmark]: TraceAbstraction took 133.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:10,071 INFO L168 Benchmark]: Witness Printer took 3.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:10,073 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.61 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.15 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 138.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 133.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.22 ms. Allocated memory is still 1.1 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, 0.0s 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 0.1.23-635dfa2 [2018-12-01 22:30:11,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:30:11,334 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:30:11,342 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:30:11,342 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:30:11,343 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:30:11,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:30:11,344 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:30:11,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:30:11,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:30:11,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:30:11,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:30:11,346 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:30:11,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:30:11,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:30:11,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:30:11,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:30:11,349 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:30:11,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:30:11,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:30:11,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:30:11,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:30:11,353 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:30:11,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:30:11,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:30:11,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:30:11,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:30:11,355 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:30:11,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:30:11,356 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:30:11,356 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:30:11,357 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:30:11,357 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:30:11,357 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:30:11,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:30:11,358 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:30:11,358 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-01 22:30:11,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:30:11,368 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:30:11,369 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:30:11,369 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:30:11,369 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 22:30:11,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:30:11,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:30:11,371 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:30:11,372 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:30:11,372 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:30:11,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:30:11,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:30:11,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:30:11,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:30:11,373 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 22:30:11,373 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-01 22:30:11,374 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_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-01 22:30:11,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:30:11,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:30:11,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:30:11,408 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:30:11,408 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:30:11,409 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:11,445 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/cd0bf0a70/456be12729ec429cbe88d7cd49755a1b/FLAG71bbea9fb [2018-12-01 22:30:11,761 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:30:11,761 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:11,765 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/cd0bf0a70/456be12729ec429cbe88d7cd49755a1b/FLAG71bbea9fb [2018-12-01 22:30:11,773 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/data/cd0bf0a70/456be12729ec429cbe88d7cd49755a1b [2018-12-01 22:30:11,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:30:11,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:30:11,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:11,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:30:11,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:30:11,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f078546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11, skipping insertion in model container [2018-12-01 22:30:11,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:30:11,796 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:30:11,902 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:11,907 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:30:11,922 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:11,932 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:30:11,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11 WrapperNode [2018-12-01 22:30:11,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:11,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:11,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:30:11,933 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:30:11,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:11,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:30:11,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:30:11,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:30:11,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... [2018-12-01 22:30:11,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:30:11,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:30:11,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:30:11,964 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:30:11,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 [2018-12-01 22:30:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-01 22:30:12,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-01 22:30:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:30:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:30:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:30:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:30:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-12-01 22:30:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-12-01 22:30:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:30:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:30:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-12-01 22:30:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-12-01 22:30:12,103 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:30:12,103 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-01 22:30:12,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:12 BoogieIcfgContainer [2018-12-01 22:30:12,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:30:12,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:30:12,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:30:12,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:30:12,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:30:11" (1/3) ... [2018-12-01 22:30:12,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500a680c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:30:12, skipping insertion in model container [2018-12-01 22:30:12,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:11" (2/3) ... [2018-12-01 22:30:12,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500a680c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:30:12, skipping insertion in model container [2018-12-01 22:30:12,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:12" (3/3) ... [2018-12-01 22:30:12,109 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-01 22:30:12,115 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:30:12,119 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-01 22:30:12,132 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-01 22:30:12,150 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 22:30:12,151 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:30:12,151 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:30:12,151 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:30:12,151 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:30:12,151 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:30:12,151 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:30:12,151 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:30:12,151 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:30:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-01 22:30:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:12,164 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:30:12,164 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:30:12,165 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:30:12,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:30:12,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-12-01 22:30:12,171 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:30:12,171 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/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 [2018-12-01 22:30:12,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:30:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:12,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:30:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:12,266 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:30:12,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:30:12,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:30:12,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:30:12,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:30:12,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:30:12,287 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-12-01 22:30:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:30:12,302 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-01 22:30:12,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:30:12,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-01 22:30:12,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:30:12,309 INFO L225 Difference]: With dead ends: 49 [2018-12-01 22:30:12,309 INFO L226 Difference]: Without dead ends: 21 [2018-12-01 22:30:12,311 INFO L631 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 [2018-12-01 22:30:12,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-01 22:30:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-01 22:30:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-01 22:30:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-12-01 22:30:12,332 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-12-01 22:30:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:30:12,332 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-12-01 22:30:12,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:30:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-12-01 22:30:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 22:30:12,333 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:30:12,333 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:30:12,334 INFO L423 AbstractCegarLoop]: === Iteration 2 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:30:12,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:30:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1652764716, now seen corresponding path program 1 times [2018-12-01 22:30:12,334 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:30:12,334 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/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 [2018-12-01 22:30:12,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:30:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:12,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:30:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:12,550 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:30:12,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:30:12,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:30:12,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:30:12,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:30:12,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:30:12,560 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 3 states. [2018-12-01 22:30:12,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:30:12,564 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-12-01 22:30:12,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:30:12,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-01 22:30:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:30:12,565 INFO L225 Difference]: With dead ends: 21 [2018-12-01 22:30:12,565 INFO L226 Difference]: Without dead ends: 19 [2018-12-01 22:30:12,565 INFO L631 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 [2018-12-01 22:30:12,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-01 22:30:12,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-01 22:30:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-01 22:30:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-12-01 22:30:12,568 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 13 [2018-12-01 22:30:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:30:12,568 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-12-01 22:30:12,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:30:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-12-01 22:30:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 22:30:12,568 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:30:12,568 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:30:12,569 INFO L423 AbstractCegarLoop]: === Iteration 3 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:30:12,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:30:12,569 INFO L82 PathProgramCache]: Analyzing trace with hash -207607829, now seen corresponding path program 1 times [2018-12-01 22:30:12,569 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:30:12,569 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/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 [2018-12-01 22:30:12,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:30:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:12,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:30:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:12,800 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:30:12,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:30:12,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:30:12,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:30:12,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:30:12,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:30:12,810 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-12-01 22:30:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:30:12,812 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-12-01 22:30:12,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:30:12,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-01 22:30:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:30:12,812 INFO L225 Difference]: With dead ends: 19 [2018-12-01 22:30:12,812 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:30:12,813 INFO L631 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 [2018-12-01 22:30:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:30:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:30:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:30:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:30:12,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-12-01 22:30:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:30:12,813 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:30:12,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:30:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:30:12,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:30:12,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 22:30:12,844 INFO L448 ceAbstractionStarter]: For program point castEXIT(lines 23 30) no Hoare annotation was computed. [2018-12-01 22:30:12,844 INFO L448 ceAbstractionStarter]: For program point castErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2018-12-01 22:30:12,844 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-01 22:30:12,844 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L451 ceAbstractionStarter]: At program point castENTRY(lines 23 30) the Hoare annotation is: true [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point L29-3(lines 23 30) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 22:30:12,845 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 13 21) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L451 ceAbstractionStarter]: At program point divideENTRY(lines 13 21) the Hoare annotation is: true [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point divideEXIT(lines 13 21) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-01 22:30:12,845 INFO L448 ceAbstractionStarter]: For program point divideErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 32 37) the Hoare annotation is: true [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 32 37) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 32 37) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L451 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: true [2018-12-01 22:30:12,846 INFO L451 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: true [2018-12-01 22:30:12,846 INFO L451 ceAbstractionStarter]: At program point multiplyENTRY(lines 3 11) the Hoare annotation is: true [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point multiplyEXIT(lines 3 11) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 3 11) no Hoare annotation was computed. [2018-12-01 22:30:12,846 INFO L448 ceAbstractionStarter]: For program point multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-01 22:30:12,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:30:12 BoogieIcfgContainer [2018-12-01 22:30:12,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:30:12,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:30:12,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:30:12,848 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:30:12,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:12" (3/4) ... [2018-12-01 22:30:12,851 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:30:12,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cast [2018-12-01 22:30:12,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 22:30:12,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure divide [2018-12-01 22:30:12,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 22:30:12,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure multiply [2018-12-01 22:30:12,857 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-01 22:30:12,858 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 22:30:12,858 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 22:30:12,881 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f4c9114b-33a0-42f2-88f3-dcf55a510cc1/bin-2019/uautomizer/witness.graphml [2018-12-01 22:30:12,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:30:12,881 INFO L168 Benchmark]: Toolchain (without parser) took 1105.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -96.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:12,882 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:12,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.54 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:12,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.83 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:12,883 INFO L168 Benchmark]: Boogie Preprocessor took 16.57 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:12,883 INFO L168 Benchmark]: RCFGBuilder took 139.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:12,883 INFO L168 Benchmark]: TraceAbstraction took 744.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:12,884 INFO L168 Benchmark]: Witness Printer took 32.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:12,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.54 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.83 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.57 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 139.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 744.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s 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, 0.4s SatisfiabilityAnalysisTime, 0.0s 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...