./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ..................................................................................................................................................................................................................................................................................................................................................................................... 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_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:39:28,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:39:28,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:39:28,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:39:28,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:39:28,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:39:28,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:39:28,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:39:28,299 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:39:28,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:39:28,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:39:28,301 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:39:28,301 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:39:28,302 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:39:28,303 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:39:28,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:39:28,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:39:28,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:39:28,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:39:28,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:39:28,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:39:28,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:39:28,311 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:39:28,311 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:39:28,311 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:39:28,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:39:28,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:39:28,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:39:28,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:39:28,314 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:39:28,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:39:28,315 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:39:28,315 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:39:28,315 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:39:28,316 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:39:28,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:39:28,317 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:39:28,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:39:28,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:39:28,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:39:28,327 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:39:28,327 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:39:28,327 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:39:28,327 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:39:28,327 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:39:28,328 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:39:28,328 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:39:28,328 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:39:28,328 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:39:28,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:39:28,330 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:39:28,330 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:39:28,330 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:39:28,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:39:28,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:39:28,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:39:28,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:39:28,331 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan 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 -> Taipan 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-10-27 00:39:28,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:39:28,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:39:28,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:39:28,368 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:39:28,368 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:39:28,369 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:28,412 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/10d9c0f14/27c39767bd1545d38bfdbfd479ffe41f/FLAG361b00d0b [2018-10-27 00:39:28,808 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:39:28,816 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:28,823 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/10d9c0f14/27c39767bd1545d38bfdbfd479ffe41f/FLAG361b00d0b [2018-10-27 00:39:28,838 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/10d9c0f14/27c39767bd1545d38bfdbfd479ffe41f [2018-10-27 00:39:28,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:39:28,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:39:28,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:28,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:39:28,849 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:39:28,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:28" (1/1) ... [2018-10-27 00:39:28,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf504d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:28, skipping insertion in model container [2018-10-27 00:39:28,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:28" (1/1) ... [2018-10-27 00:39:28,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:39:28,886 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:39:29,060 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:29,065 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:39:29,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:29,141 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:39:29,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29 WrapperNode [2018-10-27 00:39:29,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:29,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:29,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:39:29,143 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:39:29,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:29,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:39:29,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:39:29,189 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:39:29,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... [2018-10-27 00:39:29,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:39:29,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:39:29,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:39:29,224 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:39:29,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/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 [2018-10-27 00:39:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:39:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:39:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:39:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:39:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:39:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:39:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-27 00:39:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-27 00:39:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:39:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:39:29,893 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:39:29,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:29 BoogieIcfgContainer [2018-10-27 00:39:29,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:39:29,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:39:29,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:39:29,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:39:29,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:39:28" (1/3) ... [2018-10-27 00:39:29,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264cc18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:29, skipping insertion in model container [2018-10-27 00:39:29,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:29" (2/3) ... [2018-10-27 00:39:29,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264cc18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:29, skipping insertion in model container [2018-10-27 00:39:29,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:29" (3/3) ... [2018-10-27 00:39:29,902 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:29,910 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:39:29,918 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:39:29,930 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:39:29,956 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:39:29,957 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:39:29,957 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:39:29,957 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:39:29,957 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:39:29,957 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:39:29,957 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:39:29,958 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:39:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-27 00:39:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:39:29,983 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:29,984 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:29,986 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:29,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1808585883, now seen corresponding path program 1 times [2018-10-27 00:39:29,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:30,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:30,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:30,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:30,035 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:30,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:30,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:39:30,117 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:39:30,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:39:30,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:39:30,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:39:30,136 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-27 00:39:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:30,156 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-10-27 00:39:30,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:39:30,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-27 00:39:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:30,167 INFO L225 Difference]: With dead ends: 78 [2018-10-27 00:39:30,167 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 00:39:30,170 INFO L605 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 [2018-10-27 00:39:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 00:39:30,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-27 00:39:30,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 00:39:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-10-27 00:39:30,206 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-10-27 00:39:30,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:30,206 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-10-27 00:39:30,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:39:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-10-27 00:39:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:39:30,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:30,207 INFO L375 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] [2018-10-27 00:39:30,208 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:30,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash 941490085, now seen corresponding path program 1 times [2018-10-27 00:39:30,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:30,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:30,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:30,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:30,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:39:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:39:30,295 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:39:30,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:39:30,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:39:30,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:39:30 BoogieIcfgContainer [2018-10-27 00:39:30,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:39:30,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:39:30,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:39:30,339 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:39:30,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:29" (3/4) ... [2018-10-27 00:39:30,343 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:39:30,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:39:30,344 INFO L168 Benchmark]: Toolchain (without parser) took 1502.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -90.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,346 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:30,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 941.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.03 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,347 INFO L168 Benchmark]: Boogie Preprocessor took 34.71 ms. Allocated memory is still 1.0 GB. Free memory was 938.3 MB in the beginning and 935.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,348 INFO L168 Benchmark]: RCFGBuilder took 670.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,349 INFO L168 Benchmark]: TraceAbstraction took 443.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:30,350 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:30,353 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 941.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.03 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.71 ms. Allocated memory is still 1.0 GB. Free memory was 938.3 MB in the beginning and 935.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 670.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 443.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 125]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450959, \old(Lg2_log)=6442450960, \old(Lg3_log)=6442450946, \old(Lg4_log)=6442450949, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450958, \old(Lg7_log)=6442450957, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450953, \old(two25_log)=6442450956, \old(zero_log)=6442450955, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float x = -1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] CALL, EXPR __ieee754_logf(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] CALL ieee_float_shape_type gf_u; [L37] RET ieee_float_shape_type gf_u; [L38] CALL gf_u.value = (x) [L38] RET gf_u.value = (x) [L39] CALL, EXPR gf_u.word [L39] RET, EXPR gf_u.word [L39] (ix) = gf_u.word [L39] RET (ix) = gf_u.word [L40] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L121] float res = __ieee754_logf(x); [L124] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450950, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450950, zero_log=0] [L124] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] [L124] COND TRUE !isnan_float(res) [L125] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=43occurred 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 0.1.23-1dbac8b [2018-10-27 00:39:32,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:39:32,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:39:32,199 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:39:32,199 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:39:32,200 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:39:32,201 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:39:32,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:39:32,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:39:32,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:39:32,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:39:32,205 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:39:32,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:39:32,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:39:32,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:39:32,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:39:32,209 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:39:32,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:39:32,212 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:39:32,214 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:39:32,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:39:32,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:39:32,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:39:32,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:39:32,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:39:32,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:39:32,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:39:32,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:39:32,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:39:32,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:39:32,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:39:32,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:39:32,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:39:32,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:39:32,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:39:32,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:39:32,225 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:39:32,236 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:39:32,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:39:32,237 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:39:32,237 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:39:32,237 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:39:32,237 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:39:32,238 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:39:32,238 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:39:32,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:39:32,238 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:39:32,238 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:39:32,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:39:32,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:39:32,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:39:32,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:39:32,242 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:39:32,242 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:39:32,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:39:32,242 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:39:32,243 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:39:32,243 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_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan 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 -> Taipan 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-10-27 00:39:32,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:39:32,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:39:32,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:39:32,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:39:32,293 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:39:32,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:32,342 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/04eafe537/8ec17832eb2840eeb1aaa2b24195694a/FLAGd2f4f9741 [2018-10-27 00:39:32,721 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:39:32,721 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:32,728 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/04eafe537/8ec17832eb2840eeb1aaa2b24195694a/FLAGd2f4f9741 [2018-10-27 00:39:32,739 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/data/04eafe537/8ec17832eb2840eeb1aaa2b24195694a [2018-10-27 00:39:32,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:39:32,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:39:32,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:32,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:39:32,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:39:32,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:32" (1/1) ... [2018-10-27 00:39:32,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14913c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:32, skipping insertion in model container [2018-10-27 00:39:32,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:32" (1/1) ... [2018-10-27 00:39:32,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:39:32,781 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:39:32,979 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:32,987 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:39:33,049 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:33,079 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:39:33,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33 WrapperNode [2018-10-27 00:39:33,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:33,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:33,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:39:33,081 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:39:33,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:33,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:39:33,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:39:33,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:39:33,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... [2018-10-27 00:39:33,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:39:33,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:39:33,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:39:33,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:39:33,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/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 [2018-10-27 00:39:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:39:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:39:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:39:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:39:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:39:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:39:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-27 00:39:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-27 00:39:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:39:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:39:33,550 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:39:45,120 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:39:45,183 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:39:45,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:45 BoogieIcfgContainer [2018-10-27 00:39:45,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:39:45,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:39:45,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:39:45,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:39:45,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:39:32" (1/3) ... [2018-10-27 00:39:45,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40127ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:45, skipping insertion in model container [2018-10-27 00:39:45,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:33" (2/3) ... [2018-10-27 00:39:45,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40127ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:45, skipping insertion in model container [2018-10-27 00:39:45,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:45" (3/3) ... [2018-10-27 00:39:45,191 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:39:45,198 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:39:45,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:39:45,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:39:45,235 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:39:45,236 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:39:45,236 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:39:45,236 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:39:45,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:39:45,237 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:39:45,237 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:39:45,237 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:39:45,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:39:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-27 00:39:45,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:39:45,254 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:45,254 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:45,257 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:45,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1982603429, now seen corresponding path program 1 times [2018-10-27 00:39:45,266 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:39:45,266 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/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 [2018-10-27 00:39:45,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:45,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:39:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:45,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:39:45,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:45,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:39:45,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:39:45,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:39:45,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:39:45,563 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-10-27 00:39:45,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:45,580 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-10-27 00:39:45,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:39:45,582 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-27 00:39:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:45,591 INFO L225 Difference]: With dead ends: 76 [2018-10-27 00:39:45,591 INFO L226 Difference]: Without dead ends: 38 [2018-10-27 00:39:45,594 INFO L605 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 [2018-10-27 00:39:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-27 00:39:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-10-27 00:39:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-27 00:39:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-10-27 00:39:45,622 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-10-27 00:39:45,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:45,622 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-10-27 00:39:45,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:39:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-10-27 00:39:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:39:45,623 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:45,623 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:45,623 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:45,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:45,624 INFO L82 PathProgramCache]: Analyzing trace with hash -75431839, now seen corresponding path program 1 times [2018-10-27 00:39:45,626 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:39:45,626 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/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 [2018-10-27 00:39:45,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:45,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:39:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:46,168 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:39:46,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:46,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:39:46,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:39:46,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:39:46,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:39:46,189 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-10-27 00:39:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:50,249 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-10-27 00:39:50,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:39:50,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-27 00:39:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:50,256 INFO L225 Difference]: With dead ends: 52 [2018-10-27 00:39:50,257 INFO L226 Difference]: Without dead ends: 42 [2018-10-27 00:39:50,258 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:39:50,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-27 00:39:50,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-10-27 00:39:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-27 00:39:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-10-27 00:39:50,266 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-10-27 00:39:50,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:50,266 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-10-27 00:39:50,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:39:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-10-27 00:39:50,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:39:50,267 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:50,267 INFO L375 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] [2018-10-27 00:39:50,268 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:50,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:50,268 INFO L82 PathProgramCache]: Analyzing trace with hash -406668313, now seen corresponding path program 1 times [2018-10-27 00:39:50,269 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:39:50,270 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:39:50,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-27 00:39:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:50,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:39:52,076 WARN L179 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 00:39:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:52,307 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:39:52,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:52,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-27 00:39:52,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 00:39:52,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 00:39:52,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:39:52,319 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-10-27 00:39:53,499 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:40:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:40:04,703 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2018-10-27 00:40:04,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 00:40:04,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-10-27 00:40:04,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:40:04,705 INFO L225 Difference]: With dead ends: 51 [2018-10-27 00:40:04,705 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:40:04,706 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-10-27 00:40:04,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:40:04,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-10-27 00:40:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-27 00:40:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-10-27 00:40:04,714 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-10-27 00:40:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:40:04,714 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-10-27 00:40:04,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 00:40:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-10-27 00:40:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 00:40:04,715 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:40:04,715 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:40:04,715 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:40:04,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:40:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1423848861, now seen corresponding path program 1 times [2018-10-27 00:40:04,716 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:40:04,716 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/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 [2018-10-27 00:40:04,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:40:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:40:04,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:40:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:40:04,857 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:40:04,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:40:04,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:40:04,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:40:04,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:40:04,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:40:04,873 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 6 states. [2018-10-27 00:40:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:40:07,602 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-10-27 00:40:07,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:40:07,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-27 00:40:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:40:07,603 INFO L225 Difference]: With dead ends: 42 [2018-10-27 00:40:07,604 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:40:07,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:40:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:40:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:40:07,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:40:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:40:07,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-10-27 00:40:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:40:07,605 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:40:07,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:40:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:40:07,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:40:07,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:40:07,882 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 19 [2018-10-27 00:40:08,076 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-10-27 00:40:08,077 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:40:08,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-10-27 00:40:08,077 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-10-27 00:40:08,078 INFO L421 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-10-27 00:40:08,078 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-10-27 00:40:08,078 INFO L421 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-10-27 00:40:08,078 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-10-27 00:40:08,079 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-10-27 00:40:08,080 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-10-27 00:40:08,080 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-10-27 00:40:08,080 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:40:08,080 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-10-27 00:40:08,080 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:40:08,080 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:40:08,084 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 113 130) the Hoare annotation is: true [2018-10-27 00:40:08,084 INFO L425 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2018-10-27 00:40:08,084 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 113 130) no Hoare annotation was computed. [2018-10-27 00:40:08,085 INFO L421 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) RNE (_ +zero 11 53)))) (or (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.div RNE (fp.sub RNE .cse0 .cse0) .cse1)))) (not (= .cse1 ~zero_log~0)))) [2018-10-27 00:40:08,085 INFO L425 ceAbstractionStarter]: For program point L124-1(lines 124 127) no Hoare annotation was computed. [2018-10-27 00:40:08,085 INFO L421 ceAbstractionStarter]: At program point L121(line 121) the Hoare annotation is: (or (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-10-27 00:40:08,085 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 113 130) no Hoare annotation was computed. [2018-10-27 00:40:08,085 INFO L425 ceAbstractionStarter]: For program point L121-1(line 121) no Hoare annotation was computed. [2018-10-27 00:40:08,085 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2018-10-27 00:40:08,090 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,091 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,091 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,092 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,092 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,096 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,096 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,096 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,097 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,097 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,098 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,098 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,099 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,099 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,099 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,099 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,099 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,100 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,102 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,102 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,102 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,103 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:40:08 BoogieIcfgContainer [2018-10-27 00:40:08,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:40:08,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:40:08,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:40:08,105 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:40:08,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:45" (3/4) ... [2018-10-27 00:40:08,110 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:40:08,116 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-27 00:40:08,116 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:40:08,116 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-10-27 00:40:08,117 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:40:08,122 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2018-10-27 00:40:08,123 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-10-27 00:40:08,123 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 00:40:08,123 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:40:08,146 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) [2018-10-27 00:40:08,147 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-10-27 00:40:08,147 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-10-27 00:40:08,186 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e9eb0550-566b-4863-b670-dedb3e0e1df0/bin-2019/utaipan/witness.graphml [2018-10-27 00:40:08,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:40:08,190 INFO L168 Benchmark]: Toolchain (without parser) took 35447.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 953.2 MB in the beginning and 948.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 162.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,190 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:40:08,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.03 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.75 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,191 INFO L168 Benchmark]: Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:40:08,191 INFO L168 Benchmark]: RCFGBuilder took 12030.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,192 INFO L168 Benchmark]: TraceAbstraction took 22920.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.2 MB in the end (delta: 165.0 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,192 INFO L168 Benchmark]: Witness Printer took 84.12 ms. Allocated memory is still 1.2 GB. Free memory was 955.2 MB in the beginning and 948.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:40:08,196 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.03 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.75 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12030.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22920.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.2 MB in the end (delta: 165.0 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. * Witness Printer took 84.12 ms. Allocated memory is still 1.2 GB. Free memory was 955.2 MB in the beginning and 948.6 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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: 61]: Loop Invariant [2018-10-27 00:40:08,205 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,207 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-10-27 00:40:08,207 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,207 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) - InvariantResult [Line: 52]: Loop Invariant [2018-10-27 00:40:08,208 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,209 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:40:08,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:40:08,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 22.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 19.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 156 SDtfs, 107 SDslu, 429 SDs, 0 SdLazy, 170 SolverSat, 12 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 19 NumberOfFragments, 130 HoareAnnotationTreeSize, 14 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8636 SizeOfPredicates, 23 NumberOfNonLiveVariables, 391 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...