./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c --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_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 bc9c2d8006a021647ffc0d9b742af3213165b422 ..................................................................................................................................................................................................................................................................................................................... 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_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 bc9c2d8006a021647ffc0d9b742af3213165b422 ................................................................................................................................................................................................................................................................................................................................................................ 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 06:21:41,291 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:21:41,292 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:21:41,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:21:41,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:21:41,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:21:41,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:21:41,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:21:41,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:21:41,302 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:21:41,302 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:21:41,303 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:21:41,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:21:41,303 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:21:41,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:21:41,304 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:21:41,305 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:21:41,306 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:21:41,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:21:41,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:21:41,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:21:41,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:21:41,309 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:21:41,309 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:21:41,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:21:41,310 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:21:41,311 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:21:41,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:21:41,311 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:21:41,312 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:21:41,312 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:21:41,312 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:21:41,312 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:21:41,312 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:21:41,313 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:21:41,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:21:41,313 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 06:21:41,320 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:21:41,320 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:21:41,321 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 06:21:41,321 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 06:21:41,321 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 06:21:41,321 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 06:21:41,321 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 06:21:41,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 06:21:41,322 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 06:21:41,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 06:21:41,323 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 06:21:41,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 06:21:41,323 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_fca355b3-f16f-43b8-947e-1381018379d4/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 -> bc9c2d8006a021647ffc0d9b742af3213165b422 [2018-12-02 06:21:41,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:21:41,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:21:41,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:21:41,354 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:21:41,354 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:21:41,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:41,389 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/97d0c8b54/5a76fe630c8c48bc9949d813094abf00/FLAG4e5338746 [2018-12-02 06:21:41,828 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:21:41,828 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:41,832 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/97d0c8b54/5a76fe630c8c48bc9949d813094abf00/FLAG4e5338746 [2018-12-02 06:21:41,843 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/97d0c8b54/5a76fe630c8c48bc9949d813094abf00 [2018-12-02 06:21:41,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:21:41,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:21:41,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:21:41,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:21:41,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:21:41,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:41,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ed00b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41, skipping insertion in model container [2018-12-02 06:21:41,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:41,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:21:41,869 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:21:41,960 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:21:41,962 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:21:41,974 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:21:41,986 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:21:41,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41 WrapperNode [2018-12-02 06:21:41,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:21:41,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:21:41,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:21:41,987 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:21:41,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:41,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:21:42,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:21:42,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:21:42,001 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:21:42,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... [2018-12-02 06:21:42,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:21:42,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:21:42,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:21:42,047 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:21:42,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 06:21:42,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 06:21:42,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 06:21:42,077 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 06:21:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:21:42,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:21:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 06:21:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 06:21:42,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 06:21:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 06:21:42,188 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:21:42,189 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 06:21:42,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:42 BoogieIcfgContainer [2018-12-02 06:21:42,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:21:42,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 06:21:42,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 06:21:42,191 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 06:21:42,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:21:41" (1/3) ... [2018-12-02 06:21:42,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:42, skipping insertion in model container [2018-12-02 06:21:42,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:41" (2/3) ... [2018-12-02 06:21:42,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:42, skipping insertion in model container [2018-12-02 06:21:42,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:42" (3/3) ... [2018-12-02 06:21:42,193 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:42,199 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 06:21:42,204 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 06:21:42,213 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 06:21:42,230 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 06:21:42,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 06:21:42,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 06:21:42,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 06:21:42,231 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:21:42,231 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:21:42,231 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 06:21:42,231 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:21:42,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 06:21:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-12-02 06:21:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 06:21:42,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:21:42,244 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:21:42,245 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:21:42,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:21:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1978899259, now seen corresponding path program 1 times [2018-12-02 06:21:42,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:21:42,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:21:42,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:21:42,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:21:42,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:21:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:21:42,324 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 06:21:42,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:21:42,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 06:21:42,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 06:21:42,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 06:21:42,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:21:42,337 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-12-02 06:21:42,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:21:42,349 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2018-12-02 06:21:42,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 06:21:42,350 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-02 06:21:42,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:21:42,354 INFO L225 Difference]: With dead ends: 54 [2018-12-02 06:21:42,354 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 06:21:42,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:21:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 06:21:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 06:21:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 06:21:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-02 06:21:42,377 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2018-12-02 06:21:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:21:42,377 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-02 06:21:42,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 06:21:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-02 06:21:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 06:21:42,378 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:21:42,378 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:21:42,378 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:21:42,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:21:42,378 INFO L82 PathProgramCache]: Analyzing trace with hash 749195959, now seen corresponding path program 1 times [2018-12-02 06:21:42,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:21:42,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:21:42,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:21:42,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:21:42,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:21:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:21:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:21:42,437 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 06:21:42,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:21:42 BoogieIcfgContainer [2018-12-02 06:21:42,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 06:21:42,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:21:42,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:21:42,454 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:21:42,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:42" (3/4) ... [2018-12-02 06:21:42,457 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 06:21:42,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:21:42,457 INFO L168 Benchmark]: Toolchain (without parser) took 611.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -93.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,458 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 06:21:42,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.82 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.66 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,459 INFO L168 Benchmark]: Boogie Preprocessor took 45.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,460 INFO L168 Benchmark]: RCFGBuilder took 142.44 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,460 INFO L168 Benchmark]: TraceAbstraction took 264.74 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:42,460 INFO L168 Benchmark]: Witness Printer took 2.71 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. [2018-12-02 06:21:42,462 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 139.82 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.66 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 142.44 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.74 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 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: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = -1.0f / 0.0f; [L47] CALL, EXPR fabs_float(x) VAL [\old(x)=6442450955] [L12] __uint32_t ix; VAL [\old(x)=6442450955, x=6442450955] [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (ix) = gf_u.word [L19] ieee_float_shape_type sf_u; [L20] sf_u.word = (ix & 0x7fffffff) [L21] EXPR sf_u.value [L21] (x) = sf_u.value [L23] return x; VAL [\old(x)=6442450955, \result=6442450948, ix=2147483658, x=6442450948] [L47] RET, EXPR fabs_float(x) VAL [fabs_float(x)=6442450948, x=6442450955] [L47] float res = fabs_float(x); [L50] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450948] [L28] __int32_t ix; VAL [\old(x)=6442450948, x=6442450948] [L30] ieee_float_shape_type gf_u; [L31] gf_u.value = (x) [L32] EXPR gf_u.word [L32] (ix) = gf_u.word [L34] ix &= 0x7fffffff [L35] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450948, \result=0, ix=0, x=6442450948] [L50] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450948, x=6442450955] [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() VAL [res=6442450948, x=6442450955] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 06:21:43,823 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:21:43,824 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:21:43,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:21:43,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:21:43,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:21:43,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:21:43,832 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:21:43,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:21:43,834 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:21:43,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:21:43,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:21:43,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:21:43,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:21:43,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:21:43,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:21:43,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:21:43,839 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:21:43,840 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:21:43,840 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:21:43,841 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:21:43,842 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:21:43,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:21:43,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:21:43,843 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:21:43,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:21:43,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:21:43,844 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:21:43,844 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:21:43,845 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:21:43,845 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:21:43,845 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:21:43,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:21:43,846 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:21:43,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:21:43,847 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:21:43,847 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 06:21:43,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:21:43,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:21:43,858 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 06:21:43,858 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 06:21:43,858 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 06:21:43,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:21:43,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 06:21:43,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 06:21:43,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:21:43,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:21:43,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 06:21:43,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 06:21:43,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 06:21:43,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:21:43,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 06:21:43,862 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 06:21:43,862 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 06:21:43,862 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 06:21:43,862 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 06:21:43,862 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 06:21:43,862 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_fca355b3-f16f-43b8-947e-1381018379d4/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 -> bc9c2d8006a021647ffc0d9b742af3213165b422 [2018-12-02 06:21:43,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:21:43,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:21:43,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:21:43,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:21:43,896 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:21:43,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:43,933 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/819e9c817/fe33a584bfa247b2b3b1499de361ab7e/FLAGba3d974f7 [2018-12-02 06:21:44,310 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:21:44,311 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:44,314 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/819e9c817/fe33a584bfa247b2b3b1499de361ab7e/FLAGba3d974f7 [2018-12-02 06:21:44,666 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/data/819e9c817/fe33a584bfa247b2b3b1499de361ab7e [2018-12-02 06:21:44,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:21:44,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:21:44,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:21:44,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:21:44,672 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:21:44,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c437c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44, skipping insertion in model container [2018-12-02 06:21:44,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:21:44,689 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:21:44,777 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:21:44,780 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:21:44,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:21:44,809 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:21:44,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44 WrapperNode [2018-12-02 06:21:44,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:21:44,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:21:44,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:21:44,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:21:44,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:21:44,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:21:44,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:21:44,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:21:44,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... [2018-12-02 06:21:44,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:21:44,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:21:44,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:21:44,845 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:21:44,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 06:21:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 06:21:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 06:21:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 06:21:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:21:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 06:21:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 06:21:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 06:21:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 06:21:44,991 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 06:21:45,022 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 06:21:45,043 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:21:45,043 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 06:21:45,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:45 BoogieIcfgContainer [2018-12-02 06:21:45,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:21:45,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 06:21:45,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 06:21:45,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 06:21:45,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:21:44" (1/3) ... [2018-12-02 06:21:45,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d4f1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:45, skipping insertion in model container [2018-12-02 06:21:45,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:44" (2/3) ... [2018-12-02 06:21:45,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d4f1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:45, skipping insertion in model container [2018-12-02 06:21:45,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:45" (3/3) ... [2018-12-02 06:21:45,047 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012b_true-unreach-call.c [2018-12-02 06:21:45,054 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 06:21:45,058 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 06:21:45,066 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 06:21:45,082 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 06:21:45,083 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 06:21:45,083 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 06:21:45,083 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 06:21:45,083 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:21:45,083 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:21:45,083 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 06:21:45,083 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:21:45,083 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 06:21:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-02 06:21:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 06:21:45,096 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:21:45,097 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:21:45,098 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:21:45,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:21:45,101 INFO L82 PathProgramCache]: Analyzing trace with hash -556010884, now seen corresponding path program 1 times [2018-12-02 06:21:45,104 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:21:45,104 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 06:21:45,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:21:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:21:45,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:21:45,161 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 06:21:45,161 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:21:45,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:21:45,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 06:21:45,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 06:21:45,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 06:21:45,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:21:45,181 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-12-02 06:21:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:21:45,193 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2018-12-02 06:21:45,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 06:21:45,194 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-02 06:21:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:21:45,198 INFO L225 Difference]: With dead ends: 52 [2018-12-02 06:21:45,198 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 06:21:45,200 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:21:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 06:21:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-02 06:21:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 06:21:45,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-12-02 06:21:45,226 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-12-02 06:21:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:21:45,226 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-12-02 06:21:45,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 06:21:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-12-02 06:21:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 06:21:45,227 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:21:45,227 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:21:45,227 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:21:45,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:21:45,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1033950520, now seen corresponding path program 1 times [2018-12-02 06:21:45,228 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:21:45,228 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/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 [2018-12-02 06:21:45,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:21:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:21:45,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:21:45,560 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 06:21:45,560 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:21:45,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:21:45,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-12-02 06:21:45,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 06:21:45,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 06:21:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-12-02 06:21:45,573 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 13 states. [2018-12-02 06:21:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:21:46,090 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-12-02 06:21:46,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 06:21:46,090 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-12-02 06:21:46,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:21:46,090 INFO L225 Difference]: With dead ends: 26 [2018-12-02 06:21:46,090 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 06:21:46,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2018-12-02 06:21:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 06:21:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 06:21:46,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 06:21:46,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 06:21:46,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-02 06:21:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:21:46,092 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:21:46,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 06:21:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 06:21:46,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 06:21:46,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 06:21:46,137 INFO L448 ceAbstractionStarter]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2018-12-02 06:21:46,137 INFO L444 ceAbstractionStarter]: At program point L29-2(lines 29 33) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point L29-3(lines 29 33) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 27 36) the Hoare annotation is: true [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 27 36) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 27 36) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 11 24) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 11 24) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 11 24) the Hoare annotation is: true [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 11 24) no Hoare annotation was computed. [2018-12-02 06:21:46,138 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L444 ceAbstractionStarter]: At program point L13-2(lines 13 17) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 06:21:46,139 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 53) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L444 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 38 56) the Hoare annotation is: true [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 38 56) no Hoare annotation was computed. [2018-12-02 06:21:46,139 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2018-12-02 06:21:46,140 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 38 56) no Hoare annotation was computed. [2018-12-02 06:21:46,140 INFO L448 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-12-02 06:21:46,140 INFO L444 ceAbstractionStarter]: At program point L50(line 50) the Hoare annotation is: (and (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483647 32) fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))))) [2018-12-02 06:21:46,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:21:46 BoogieIcfgContainer [2018-12-02 06:21:46,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 06:21:46,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:21:46,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:21:46,148 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:21:46,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:45" (3/4) ... [2018-12-02 06:21:46,151 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 06:21:46,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-02 06:21:46,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 06:21:46,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-02 06:21:46,156 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 06:21:46,159 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-02 06:21:46,159 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 06:21:46,159 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 06:21:46,176 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-02 06:21:46,176 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 06:21:46,185 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fca355b3-f16f-43b8-947e-1381018379d4/bin-2019/uautomizer/witness.graphml [2018-12-02 06:21:46,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:21:46,186 INFO L168 Benchmark]: Toolchain (without parser) took 1517.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 942.0 MB in the beginning and 970.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,187 INFO L168 Benchmark]: CDTParser took 0.14 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 06:21:46,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.25 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,188 INFO L168 Benchmark]: Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:21:46,188 INFO L168 Benchmark]: RCFGBuilder took 198.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,188 INFO L168 Benchmark]: TraceAbstraction took 1104.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.4 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,188 INFO L168 Benchmark]: Witness Printer took 37.45 ms. Allocated memory is still 1.2 GB. Free memory was 977.4 MB in the beginning and 970.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 06:21:46,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 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 15.25 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 198.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1104.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.4 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.45 ms. Allocated memory is still 1.2 GB. Free memory was 977.4 MB in the beginning and 970.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 10 SDslu, 139 SDs, 0 SdLazy, 90 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 63 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 8 QuantifiedInterpolants, 8169 SizeOfPredicates, 7 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...