./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 78ea74dfa7532b5891dcf798c387cbc67437d79b ............................................................................................................................................................................................................................................................................................................................ 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_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 78ea74dfa7532b5891dcf798c387cbc67437d79b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:12:12,330 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:12:12,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:12:12,338 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:12:12,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:12:12,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:12:12,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:12:12,341 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:12:12,342 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:12:12,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:12:12,343 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:12:12,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:12:12,344 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:12:12,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:12:12,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:12:12,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:12:12,347 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:12:12,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:12:12,349 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:12:12,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:12:12,351 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:12:12,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:12:12,353 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:12:12,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:12:12,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:12:12,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:12:12,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:12:12,356 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:12:12,356 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:12:12,357 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:12:12,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:12:12,357 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:12:12,358 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:12:12,358 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:12:12,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:12:12,359 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:12:12,359 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:12:12,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:12:12,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:12:12,369 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:12:12,369 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:12:12,370 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:12:12,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:12:12,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:12:12,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:12:12,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:12:12,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:12:12,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:12:12,372 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_9038a063-6507-4d0e-957b-4d68f47bea3f/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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b [2018-11-28 12:12:12,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:12:12,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:12:12,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:12:12,405 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:12:12,405 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:12:12,406 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:12,442 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/5bf2a1748/6fe21af3b9c44a82aab3348526873507/FLAGaa38b7a70 [2018-11-28 12:12:12,766 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:12:12,767 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:12,773 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/5bf2a1748/6fe21af3b9c44a82aab3348526873507/FLAGaa38b7a70 [2018-11-28 12:12:12,783 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/5bf2a1748/6fe21af3b9c44a82aab3348526873507 [2018-11-28 12:12:12,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:12:12,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:12:12,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:12,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:12:12,788 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:12:12,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:12" (1/1) ... [2018-11-28 12:12:12,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3562ae41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:12, skipping insertion in model container [2018-11-28 12:12:12,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:12" (1/1) ... [2018-11-28 12:12:12,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:12:12,813 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:12:12,959 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:12,964 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:12:13,002 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:13,060 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:12:13,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13 WrapperNode [2018-11-28 12:12:13,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:13,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:13,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:12:13,062 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:12:13,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:13,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:12:13,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:12:13,080 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:12:13,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... [2018-11-28 12:12:13,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:12:13,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:12:13,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:12:13,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:12:13,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 [2018-11-28 12:12:13,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:12:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:12:13,144 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 12:12:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 12:12:13,144 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:12:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:12:13,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:12:13,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:12:13,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 12:12:13,145 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:12:13,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:12:13,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:12:13,146 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:12:13,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:12:13,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:12:13,479 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:12:13,480 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 12:12:13,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:13 BoogieIcfgContainer [2018-11-28 12:12:13,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:12:13,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:12:13,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:12:13,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:12:13,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:12:12" (1/3) ... [2018-11-28 12:12:13,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5046da6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:13, skipping insertion in model container [2018-11-28 12:12:13,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:13" (2/3) ... [2018-11-28 12:12:13,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5046da6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:13, skipping insertion in model container [2018-11-28 12:12:13,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:13" (3/3) ... [2018-11-28 12:12:13,486 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:13,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:12:13,499 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:12:13,508 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:12:13,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:12:13,531 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:12:13,532 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:12:13,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:12:13,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:12:13,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:12:13,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:12:13,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:12:13,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:12:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-28 12:12:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:12:13,548 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:13,548 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] [2018-11-28 12:12:13,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:13,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:13,553 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-11-28 12:12:13,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:13,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:13,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:13,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:13,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:13,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:13,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:12:13,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:12:13,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:12:13,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:12:13,678 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-11-28 12:12:13,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:13,695 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-11-28 12:12:13,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:12:13,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 12:12:13,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:13,701 INFO L225 Difference]: With dead ends: 144 [2018-11-28 12:12:13,702 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 12:12:13,704 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 [2018-11-28 12:12:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 12:12:13,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 12:12:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:12:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-11-28 12:12:13,732 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-11-28 12:12:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:13,732 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-11-28 12:12:13,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:12:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-11-28 12:12:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:12:13,733 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:13,733 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] [2018-11-28 12:12:13,733 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:13,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-11-28 12:12:13,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:13,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:13,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:13,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:13,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:13,807 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:12:13,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:12:13 BoogieIcfgContainer [2018-11-28 12:12:13,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:12:13,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:12:13,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:12:13,834 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:12:13,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:13" (3/4) ... [2018-11-28 12:12:13,837 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:12:13,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:12:13,838 INFO L168 Benchmark]: Toolchain (without parser) took 1052.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -97.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:13,839 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-28 12:12:13,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:13,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.08 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. [2018-11-28 12:12:13,839 INFO L168 Benchmark]: Boogie Preprocessor took 29.65 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. [2018-11-28 12:12:13,840 INFO L168 Benchmark]: RCFGBuilder took 370.53 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:13,840 INFO L168 Benchmark]: TraceAbstraction took 353.06 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:13,840 INFO L168 Benchmark]: Witness Printer took 3.29 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. [2018-11-28 12:12:13,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 275.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.08 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. * Boogie Preprocessor took 29.65 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. * RCFGBuilder took 370.53 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 353.06 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.29 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: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = 1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 0.1.23-0cd3be1 [2018-11-28 12:12:15,263 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:12:15,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:12:15,271 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:12:15,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:12:15,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:12:15,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:12:15,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:12:15,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:12:15,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:12:15,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:12:15,276 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:12:15,277 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:12:15,278 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:12:15,279 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:12:15,280 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:12:15,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:12:15,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:12:15,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:12:15,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:12:15,285 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:12:15,286 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:12:15,288 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:12:15,288 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:12:15,288 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:12:15,289 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:12:15,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:12:15,290 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:12:15,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:12:15,291 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:12:15,291 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:12:15,292 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:12:15,292 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:12:15,292 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:12:15,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:12:15,293 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:12:15,293 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:12:15,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:12:15,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:12:15,304 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:12:15,304 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:12:15,305 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:12:15,305 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:12:15,305 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:12:15,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:12:15,305 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:12:15,306 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:12:15,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:12:15,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:12:15,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:12:15,308 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:12:15,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:12:15,308 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:12:15,308 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:12:15,308 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_9038a063-6507-4d0e-957b-4d68f47bea3f/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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b [2018-11-28 12:12:15,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:12:15,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:12:15,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:12:15,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:12:15,342 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:12:15,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:15,377 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/a3a520689/b085756d4c1b4ffca1dc093a3127826f/FLAGb861c1f19 [2018-11-28 12:12:15,686 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:12:15,687 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:15,692 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/a3a520689/b085756d4c1b4ffca1dc093a3127826f/FLAGb861c1f19 [2018-11-28 12:12:15,702 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/data/a3a520689/b085756d4c1b4ffca1dc093a3127826f [2018-11-28 12:12:15,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:12:15,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:12:15,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:15,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:12:15,707 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:12:15,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:15,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a8b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15, skipping insertion in model container [2018-11-28 12:12:15,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:15,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:12:15,731 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:12:15,879 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:15,885 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:12:15,929 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:15,948 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:12:15,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15 WrapperNode [2018-11-28 12:12:15,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:15,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:15,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:12:15,950 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:12:15,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:15,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:16,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:12:16,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:12:16,011 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:12:16,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... [2018-11-28 12:12:16,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:12:16,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:12:16,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:12:16,042 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:12:16,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 [2018-11-28 12:12:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:12:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:12:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 12:12:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 12:12:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 12:12:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:12:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:12:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:12:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:12:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 12:12:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 12:12:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:12:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:12:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:12:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:12:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 12:12:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:12:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:12:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:12:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:12:16,244 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:12:25,178 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:12:25,218 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:12:25,656 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:12:25,662 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:12:25,662 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 12:12:25,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:25 BoogieIcfgContainer [2018-11-28 12:12:25,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:12:25,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:12:25,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:12:25,664 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:12:25,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:12:15" (1/3) ... [2018-11-28 12:12:25,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab0edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:25, skipping insertion in model container [2018-11-28 12:12:25,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:15" (2/3) ... [2018-11-28 12:12:25,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab0edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:25, skipping insertion in model container [2018-11-28 12:12:25,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:25" (3/3) ... [2018-11-28 12:12:25,667 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-11-28 12:12:25,672 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:12:25,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:12:25,685 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:12:25,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:12:25,703 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:12:25,703 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:12:25,703 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:12:25,703 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:12:25,703 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:12:25,703 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:12:25,703 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:12:25,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:12:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-28 12:12:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:12:25,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:25,718 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] [2018-11-28 12:12:25,719 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:25,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-11-28 12:12:25,725 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:12:25,726 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 [2018-11-28 12:12:25,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:25,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:12:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:25,963 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:12:25,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:25,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:12:25,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:12:25,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:12:25,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:12:25,990 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-28 12:12:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:26,012 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-11-28 12:12:26,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:12:26,014 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 12:12:26,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:26,023 INFO L225 Difference]: With dead ends: 142 [2018-11-28 12:12:26,023 INFO L226 Difference]: Without dead ends: 71 [2018-11-28 12:12:26,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:12:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-28 12:12:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-11-28 12:12:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 12:12:26,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-11-28 12:12:26,061 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-11-28 12:12:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:26,061 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-11-28 12:12:26,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:12:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-11-28 12:12:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:12:26,062 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:26,062 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] [2018-11-28 12:12:26,062 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:26,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:26,063 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-11-28 12:12:26,063 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:12:26,063 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/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 [2018-11-28 12:12:26,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:26,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:12:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:26,350 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:12:26,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:26,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:12:26,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:12:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:12:26,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:26,361 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-11-28 12:12:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:32,465 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-11-28 12:12:32,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:12:32,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 12:12:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:32,470 INFO L225 Difference]: With dead ends: 84 [2018-11-28 12:12:32,470 INFO L226 Difference]: Without dead ends: 74 [2018-11-28 12:12:32,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:12:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-28 12:12:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-11-28 12:12:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 12:12:32,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-11-28 12:12:32,483 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-11-28 12:12:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:32,483 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-11-28 12:12:32,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:12:32,484 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-11-28 12:12:32,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:12:32,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:32,485 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] [2018-11-28 12:12:32,485 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:32,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:32,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-11-28 12:12:32,486 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:12:32,486 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 12:12:32,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:32,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:12:35,026 WARN L180 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-28 12:12:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:37,283 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:12:37,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:37,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:12:37,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:12:37,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:12:37,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:12:37,293 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-11-28 12:12:40,694 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 12:12:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:47,577 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-11-28 12:12:47,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:12:47,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 12:12:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:47,579 INFO L225 Difference]: With dead ends: 80 [2018-11-28 12:12:47,579 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 12:12:47,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:12:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 12:12:47,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-28 12:12:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 12:12:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-11-28 12:12:47,590 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-11-28 12:12:47,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:47,590 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-11-28 12:12:47,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:12:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-11-28 12:12:47,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:12:47,591 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:47,591 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] [2018-11-28 12:12:47,592 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:47,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:47,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-11-28 12:12:47,592 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:12:47,592 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 12:12:47,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:48,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:12:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:48,820 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:12:48,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:48,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:12:48,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:12:48,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:12:48,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:48,842 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-11-28 12:12:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:53,760 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-11-28 12:12:53,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:12:53,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 12:12:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:53,762 INFO L225 Difference]: With dead ends: 84 [2018-11-28 12:12:53,762 INFO L226 Difference]: Without dead ends: 66 [2018-11-28 12:12:53,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:12:53,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-28 12:12:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-28 12:12:53,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-28 12:12:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-11-28 12:12:53,769 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-11-28 12:12:53,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:53,770 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-11-28 12:12:53,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:12:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-11-28 12:12:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 12:12:53,771 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:53,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:12:53,771 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:53,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:53,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-11-28 12:12:53,772 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:12:53,772 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 12:12:53,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:54,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:12:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:54,989 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:12:55,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:55,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:12:55,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:12:55,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:12:55,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:55,009 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-11-28 12:12:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:57,446 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-11-28 12:12:57,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:12:57,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-11-28 12:12:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:57,447 INFO L225 Difference]: With dead ends: 66 [2018-11-28 12:12:57,447 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:12:57,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:12:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:12:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:12:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:12:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:12:57,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-28 12:12:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:57,448 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:12:57,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:12:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:12:57,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:12:57,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:12:57,605 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-28 12:12:57,605 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-11-28 12:12:57,606 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-11-28 12:12:57,606 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:12:57,607 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-11-28 12:12:57,607 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-11-28 12:12:57,608 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-11-28 12:12:57,608 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-11-28 12:12:57,608 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-28 12:12:57,608 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-11-28 12:12:57,608 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 12:12:57,608 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-11-28 12:12:57,608 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-11-28 12:12:57,609 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-11-28 12:12:57,610 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-11-28 12:12:57,611 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-11-28 12:12:57,612 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-11-28 12:12:57,613 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-11-28 12:12:57,613 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-11-28 12:12:57,613 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-11-28 12:12:57,618 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,619 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,622 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,623 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:12:57 BoogieIcfgContainer [2018-11-28 12:12:57,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:12:57,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:12:57,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:12:57,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:12:57,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:25" (3/4) ... [2018-11-28 12:12:57,628 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-28 12:12:57,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 12:12:57,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-28 12:12:57,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-28 12:12:57,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:12:57,636 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:12:57,652 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 12:12:57,652 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-11-28 12:12:57,678 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9038a063-6507-4d0e-957b-4d68f47bea3f/bin-2019/uautomizer/witness.graphml [2018-11-28 12:12:57,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:12:57,679 INFO L168 Benchmark]: Toolchain (without parser) took 41974.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 944.7 MB in the beginning and 885.3 MB in the end (delta: 59.4 MB). Peak memory consumption was 219.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,679 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:12:57,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 923.2 MB in the beginning and 1.2 GB in the end (delta: -231.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,680 INFO L168 Benchmark]: Boogie Preprocessor took 30.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,680 INFO L168 Benchmark]: RCFGBuilder took 9620.38 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: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,680 INFO L168 Benchmark]: TraceAbstraction took 31962.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.0 MB in the end (delta: 203.7 MB). Peak memory consumption was 203.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,681 INFO L168 Benchmark]: Witness Printer took 53.05 ms. Allocated memory is still 1.2 GB. Free memory was 892.0 MB in the beginning and 885.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:57,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 923.2 MB in the beginning and 1.2 GB in the end (delta: -231.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9620.38 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: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31962.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.0 MB in the end (delta: 203.7 MB). Peak memory consumption was 203.7 MB. Max. memory is 11.5 GB. * Witness Printer took 53.05 ms. Allocated memory is still 1.2 GB. Free memory was 892.0 MB in the beginning and 885.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,690 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 12:12:57,690 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 31.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 23.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 203 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19273 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...