./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_4_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_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 fddb92276d9c39d57f5b99be31dfd08cb5ab054d ................................................................................................................................................................................................................................................ 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_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 fddb92276d9c39d57f5b99be31dfd08cb5ab054d ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:06:55,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:06:55,019 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:06:55,027 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:06:55,027 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:06:55,028 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:06:55,028 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:06:55,029 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:06:55,030 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:06:55,030 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:06:55,030 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:06:55,031 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:06:55,031 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:06:55,031 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:06:55,032 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:06:55,032 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:06:55,033 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:06:55,034 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:06:55,035 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:06:55,036 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:06:55,036 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:06:55,037 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:06:55,038 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:06:55,038 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:06:55,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:06:55,038 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:06:55,039 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:06:55,039 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:06:55,040 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:06:55,041 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:06:55,041 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:06:55,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:06:55,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:06:55,042 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:06:55,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:06:55,043 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:06:55,043 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 03:06:55,052 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:06:55,052 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:06:55,053 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:06:55,053 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:06:55,054 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:06:55,054 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:06:55,054 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 03:06:55,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:06:55,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:06:55,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:06:55,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:06:55,057 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:06:55,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:06:55,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:06:55,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:06:55,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:06:55,057 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 03:06:55,058 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:06:55,058 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 03:06:55,058 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_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 -> fddb92276d9c39d57f5b99be31dfd08cb5ab054d [2018-12-02 03:06:55,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:06:55,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:06:55,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:06:55,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:06:55,094 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:06:55,095 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-12-02 03:06:55,133 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/79db21da7/1be2adda0ae244eab93f4735c0f56725/FLAGc24d70bc5 [2018-12-02 03:06:55,506 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:06:55,506 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-12-02 03:06:55,509 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/79db21da7/1be2adda0ae244eab93f4735c0f56725/FLAGc24d70bc5 [2018-12-02 03:06:55,519 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/79db21da7/1be2adda0ae244eab93f4735c0f56725 [2018-12-02 03:06:55,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:06:55,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:06:55,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:06:55,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:06:55,527 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:06:55,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f0260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55, skipping insertion in model container [2018-12-02 03:06:55,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:06:55,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:06:55,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:06:55,641 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:06:55,652 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:06:55,660 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:06:55,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55 WrapperNode [2018-12-02 03:06:55,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:06:55,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:06:55,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:06:55,661 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:06:55,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:06:55,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:06:55,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:06:55,673 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:06:55,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... [2018-12-02 03:06:55,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:06:55,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:06:55,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:06:55,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:06:55,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 [2018-12-02 03:06:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:06:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:06:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:06:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:06:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:06:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:06:55,820 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:06:55,820 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 03:06:55,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:55 BoogieIcfgContainer [2018-12-02 03:06:55,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:06:55,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:06:55,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:06:55,823 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:06:55,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:06:55" (1/3) ... [2018-12-02 03:06:55,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a76f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:06:55, skipping insertion in model container [2018-12-02 03:06:55,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:55" (2/3) ... [2018-12-02 03:06:55,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a76f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:06:55, skipping insertion in model container [2018-12-02 03:06:55,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:55" (3/3) ... [2018-12-02 03:06:55,825 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4_true-unreach-call_true-termination.i [2018-12-02 03:06:55,830 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:06:55,834 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:06:55,843 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:06:55,859 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:06:55,859 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:06:55,859 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:06:55,859 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:06:55,859 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:06:55,859 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:06:55,859 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:06:55,860 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:06:55,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:06:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-02 03:06:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 03:06:55,871 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:06:55,872 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:06:55,873 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:06:55,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:06:55,876 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-02 03:06:55,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:06:55,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:06:55,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:06:55,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:06:55,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:06:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:06:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:06:55,937 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 03:06:55,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:06:55 BoogieIcfgContainer [2018-12-02 03:06:55,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 03:06:55,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:06:55,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:06:55,950 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:06:55,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:55" (3/4) ... [2018-12-02 03:06:55,952 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 03:06:55,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:06:55,952 INFO L168 Benchmark]: Toolchain (without parser) took 430.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:06:55,953 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:06:55,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.09 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:06:55,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.84 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:06:55,954 INFO L168 Benchmark]: Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:06:55,955 INFO L168 Benchmark]: RCFGBuilder took 137.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:06:55,955 INFO L168 Benchmark]: TraceAbstraction took 128.00 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 03:06:55,955 INFO L168 Benchmark]: Witness Printer took 2.54 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. [2018-12-02 03:06:55,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.09 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.84 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 137.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 128.00 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.39844f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.0s 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=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:06:57,226 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:06:57,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:06:57,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:06:57,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:06:57,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:06:57,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:06:57,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:06:57,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:06:57,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:06:57,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:06:57,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:06:57,237 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:06:57,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:06:57,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:06:57,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:06:57,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:06:57,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:06:57,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:06:57,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:06:57,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:06:57,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:06:57,243 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:06:57,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:06:57,244 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:06:57,244 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:06:57,245 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:06:57,245 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:06:57,245 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:06:57,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:06:57,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:06:57,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:06:57,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:06:57,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:06:57,247 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:06:57,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:06:57,247 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 03:06:57,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:06:57,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:06:57,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:06:57,255 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:06:57,256 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 03:06:57,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 03:06:57,256 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:06:57,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:06:57,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:06:57,257 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:06:57,258 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 03:06:57,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:06:57,258 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 03:06:57,258 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 03:06:57,258 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_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 -> fddb92276d9c39d57f5b99be31dfd08cb5ab054d [2018-12-02 03:06:57,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:06:57,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:06:57,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:06:57,289 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:06:57,290 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:06:57,290 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-12-02 03:06:57,331 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/6e0417228/a688f808c7f64e3b9bcfff71e022cfcd/FLAG7ca8ff798 [2018-12-02 03:06:57,729 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:06:57,729 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-12-02 03:06:57,733 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/6e0417228/a688f808c7f64e3b9bcfff71e022cfcd/FLAG7ca8ff798 [2018-12-02 03:06:57,741 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/data/6e0417228/a688f808c7f64e3b9bcfff71e022cfcd [2018-12-02 03:06:57,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:06:57,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:06:57,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:06:57,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:06:57,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:06:57,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b45ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57, skipping insertion in model container [2018-12-02 03:06:57,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:06:57,760 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:06:57,848 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:06:57,852 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:06:57,862 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:06:57,870 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:06:57,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57 WrapperNode [2018-12-02 03:06:57,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:06:57,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:06:57,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:06:57,871 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:06:57,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:06:57,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:06:57,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:06:57,885 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:06:57,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... [2018-12-02 03:06:57,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:06:57,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:06:57,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:06:57,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:06:57,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 [2018-12-02 03:06:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:06:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:06:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:06:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:06:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:06:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:07:00,086 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:07:00,086 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 03:07:00,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:07:00 BoogieIcfgContainer [2018-12-02 03:07:00,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:07:00,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:07:00,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:07:00,089 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:07:00,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:06:57" (1/3) ... [2018-12-02 03:07:00,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216bac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:07:00, skipping insertion in model container [2018-12-02 03:07:00,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:57" (2/3) ... [2018-12-02 03:07:00,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216bac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:07:00, skipping insertion in model container [2018-12-02 03:07:00,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:07:00" (3/3) ... [2018-12-02 03:07:00,091 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4_true-unreach-call_true-termination.i [2018-12-02 03:07:00,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:07:00,101 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:07:00,109 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:07:00,125 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:07:00,125 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:07:00,125 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:07:00,125 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:07:00,125 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:07:00,125 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:07:00,126 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:07:00,126 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:07:00,126 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:07:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-02 03:07:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 03:07:00,138 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:07:00,138 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:07:00,140 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:07:00,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:07:00,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-02 03:07:00,145 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:07:00,145 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/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 [2018-12-02 03:07:00,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:20:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:20:04,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:20:06,160 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= c_main_~result~0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse0)))) is different from false [2018-12-02 03:20:08,217 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= c_main_~result~0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse0)))) is different from true [2018-12-02 03:20:20,653 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) (_ +zero 8 24))))))) is different from false [2018-12-02 03:20:22,702 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) (_ +zero 8 24))))))) is different from true [2018-12-02 03:20:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:20:22,706 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:20:22,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:20:22,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:20:22,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 03:20:22,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 03:20:22,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-12-02 03:20:22,740 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-12-02 03:20:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:20:22,750 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-02 03:20:22,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 03:20:22,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-02 03:20:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:20:22,754 INFO L225 Difference]: With dead ends: 18 [2018-12-02 03:20:22,755 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 03:20:22,756 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-12-02 03:20:22,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 03:20:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 03:20:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 03:20:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 03:20:22,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-02 03:20:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:20:22,771 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 03:20:22,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 03:20:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 03:20:22,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 03:20:22,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 03:20:22,811 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 03:20:22,811 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-12-02 03:20:22,811 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-12-02 03:20:22,812 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-12-02 03:20:22,812 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-12-02 03:20:22,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:20:22 BoogieIcfgContainer [2018-12-02 03:20:22,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 03:20:22,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:20:22,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:20:22,814 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:20:22,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:07:00" (3/4) ... [2018-12-02 03:20:22,816 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 03:20:22,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 03:20:22,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 03:20:22,823 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 03:20:22,823 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 03:20:22,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 03:20:22,845 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8eae6ea0-ddc6-4f13-b291-a75b5db727e3/bin-2019/uautomizer/witness.graphml [2018-12-02 03:20:22,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:20:22,846 INFO L168 Benchmark]: Toolchain (without parser) took 805103.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:20:22,847 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-02 03:20:22,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.16 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:20:22,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.07 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:20:22,848 INFO L168 Benchmark]: Boogie Preprocessor took 13.48 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 03:20:22,848 INFO L168 Benchmark]: RCFGBuilder took 2188.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:20:22,848 INFO L168 Benchmark]: TraceAbstraction took 802726.33 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:20:22,849 INFO L168 Benchmark]: Witness Printer took 32.23 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. [2018-12-02 03:20:22,850 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 127.16 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 13.07 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.48 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2188.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 802726.33 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 802.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 783.7s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 1224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...