./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:06:15,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:06:15,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:06:15,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:06:15,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:06:15,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:06:15,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:06:15,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:06:15,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:06:15,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:06:15,353 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:06:15,353 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:06:15,354 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:06:15,355 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:06:15,356 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:06:15,356 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:06:15,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:06:15,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:06:15,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:06:15,361 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:06:15,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:06:15,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:06:15,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:06:15,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:06:15,366 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:06:15,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:06:15,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:06:15,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:06:15,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:06:15,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:06:15,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:06:15,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:06:15,373 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:06:15,373 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:06:15,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:06:15,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:06:15,375 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:06:15,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:06:15,388 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:06:15,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:06:15,389 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:06:15,389 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:06:15,390 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:06:15,390 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:06:15,390 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:06:15,390 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:06:15,390 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:06:15,391 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:06:15,391 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:06:15,391 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:06:15,393 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:06:15,393 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:06:15,394 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:06:15,395 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:06:15,395 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:06:15,395 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:06:15,395 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:06:15,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:06:15,395 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:06:15,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:06:15,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:06:15,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:06:15,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:06:15,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:06:15,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:06:15,397 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:06:15,397 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:06:15,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:06:15,397 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:06:15,397 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_c6c22e69-2960-4873-885b-aff7099a3e5e/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2018-11-23 04:06:15,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:06:15,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:06:15,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:06:15,437 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:06:15,438 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:06:15,438 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:15,483 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5df41ecee/c70245d80cbd45339d35276535fd0a5f/FLAGea39b653d [2018-11-23 04:06:15,837 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:06:15,838 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:15,845 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5df41ecee/c70245d80cbd45339d35276535fd0a5f/FLAGea39b653d [2018-11-23 04:06:16,261 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5df41ecee/c70245d80cbd45339d35276535fd0a5f [2018-11-23 04:06:16,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:06:16,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:06:16,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:06:16,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:06:16,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:06:16,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46704e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16, skipping insertion in model container [2018-11-23 04:06:16,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:06:16,296 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:06:16,426 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:06:16,429 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:06:16,448 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:06:16,464 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:06:16,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16 WrapperNode [2018-11-23 04:06:16,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:06:16,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:06:16,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:06:16,465 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:06:16,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:06:16,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:06:16,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:06:16,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:06:16,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... [2018-11-23 04:06:16,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:06:16,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:06:16,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:06:16,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:06:16,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 [2018-11-23 04:06:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 04:06:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 04:06:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:06:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:06:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 04:06:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:06:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:06:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:06:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 04:06:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:06:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:06:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-23 04:06:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-23 04:06:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-23 04:06:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-23 04:06:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:06:16,811 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:06:16,811 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 04:06:16,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:16 BoogieIcfgContainer [2018-11-23 04:06:16,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:06:16,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:06:16,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:06:16,816 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:06:16,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:16" (1/3) ... [2018-11-23 04:06:16,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4390cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:16, skipping insertion in model container [2018-11-23 04:06:16,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:16" (2/3) ... [2018-11-23 04:06:16,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4390cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:16, skipping insertion in model container [2018-11-23 04:06:16,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:16" (3/3) ... [2018-11-23 04:06:16,819 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:16,829 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:06:16,837 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:06:16,855 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:06:16,894 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:06:16,894 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:06:16,894 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:06:16,894 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:06:16,894 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:06:16,895 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:06:16,895 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:06:16,895 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:06:16,914 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-23 04:06:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 04:06:16,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:16,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:16,925 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:16,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:16,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2093385797, now seen corresponding path program 1 times [2018-11-23 04:06:16,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:06:16,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:16,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:16,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:16,976 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:06:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:17,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:17,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:06:17,054 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:06:17,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:06:17,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:06:17,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:06:17,071 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-23 04:06:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:17,090 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2018-11-23 04:06:17,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:06:17,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-11-23 04:06:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:17,101 INFO L225 Difference]: With dead ends: 71 [2018-11-23 04:06:17,101 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 04:06:17,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:06:17,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 04:06:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-23 04:06:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-23 04:06:17,140 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2018-11-23 04:06:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:17,140 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-23 04:06:17,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:06:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-23 04:06:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 04:06:17,142 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:17,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:17,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:17,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:17,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1590914468, now seen corresponding path program 1 times [2018-11-23 04:06:17,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:06:17,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:17,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,145 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:06:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:17,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:17,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:17,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:06:17,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:17,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:17,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:17,232 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-23 04:06:17,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:17,269 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-11-23 04:06:17,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:17,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-23 04:06:17,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:17,272 INFO L225 Difference]: With dead ends: 51 [2018-11-23 04:06:17,273 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 04:06:17,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 04:06:17,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-23 04:06:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 04:06:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-23 04:06:17,283 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2018-11-23 04:06:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:17,283 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-23 04:06:17,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-23 04:06:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:06:17,284 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:17,285 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:17,285 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:17,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:17,285 INFO L82 PathProgramCache]: Analyzing trace with hash 87255330, now seen corresponding path program 1 times [2018-11-23 04:06:17,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:06:17,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:17,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,286 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:06:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:17,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:17,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:17,346 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:06:17,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:17,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:17,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:17,347 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2018-11-23 04:06:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:17,378 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-11-23 04:06:17,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:17,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 04:06:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:17,380 INFO L225 Difference]: With dead ends: 55 [2018-11-23 04:06:17,380 INFO L226 Difference]: Without dead ends: 44 [2018-11-23 04:06:17,380 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-23 04:06:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-11-23 04:06:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 04:06:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-23 04:06:17,385 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2018-11-23 04:06:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:17,385 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-23 04:06:17,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-23 04:06:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:06:17,386 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:17,386 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:17,386 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:17,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:17,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1594807139, now seen corresponding path program 1 times [2018-11-23 04:06:17,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:06:17,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:17,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:06:17,387 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:06:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:06:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:06:17,436 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=2139095048, |#NULL.offset|=2139095043, |old(#NULL.base)|=2139095048, |old(#NULL.offset)|=2139095043] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=2139095048, |old(#NULL.offset)|=2139095043] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=2139095048, |old(#NULL.offset)|=2139095043] [?] RET #71#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0] [?] ~x := #in~x;~y := #in~y; VAL [fmax_float_~x=2139095045.0, fmax_float_~y=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0] [?] CALL call #t~ret2 := __fpclassify_float(~x); VAL [|#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] ~x := #in~x;havoc ~w~0; VAL [__fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~w~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~mem0;havoc #t~union1;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] goto; VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0] [?] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296);#res := 0; VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0, |__fpclassify_float_#res|=0] [?] assume true; VAL [__fpclassify_float_~w~0=2139095041, __fpclassify_float_~x=2139095045.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=2139095045.0, |__fpclassify_float_#res|=0] [?] RET #79#return; VAL [fmax_float_~x=2139095045.0, fmax_float_~y=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0, |fmax_float_#t~ret2|=0] [?] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [fmax_float_~x=2139095045.0, fmax_float_~y=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0, |fmax_float_#t~ret2|=0] [?] assume 0 == #t~ret2;havoc #t~ret2;#res := ~y; VAL [fmax_float_~x=2139095045.0, fmax_float_~y=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0, |fmax_float_#res|=2139095042.0] [?] assume true; VAL [fmax_float_~x=2139095045.0, fmax_float_~y=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=2139095045.0, |fmax_float_#in~y|=2139095042.0, |fmax_float_#res|=2139095042.0] [?] RET #75#return; VAL [main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret5|=2139095042.0] [?] ~res~0 := #t~ret5;havoc #t~ret5; VAL [main_~res~0=2139095042.0, main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := isnan_float(~res~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=2139095042.0] [?] ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [isnan_float_~x=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=2139095042.0, |isnan_float_#res|=0] [?] assume true; VAL [isnan_float_~x=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=2139095042.0, |isnan_float_#res|=0] [?] RET #77#return; VAL [main_~res~0=2139095042.0, main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret6|=0] [?] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [main_~res~0=2139095042.0, main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret6|=0] [?] assume 0 == #t~ret6;havoc #t~ret6; VAL [main_~res~0=2139095042.0, main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=2139095042.0, main_~x~0=2139095045.0, main_~y~0=2139095042.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=2139095048, #NULL.offset=2139095043, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~x=2.139095045E9] [L23] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L24] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] ~w~0 := #t~mem0; [L25] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L23] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28-L39] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L39] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L39] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36-L39] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L19-L40] ensures true; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43-L45] assume 0 == #t~ret2; [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L42-L51] ensures true; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=0, ~x=2.139095042E9] [L54] ensures true; VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64-L67] assume 0 == #t~ret6; [L64] havoc #t~ret6; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=2139095048, #NULL.offset=2139095043, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2139095048, old(#NULL.offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~x=2.139095045E9] [L23] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L24] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] ~w~0 := #t~mem0; [L25] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L23] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28-L39] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L39] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L39] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36-L39] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L19-L40] ensures true; VAL [#in~x=2.139095045E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43-L45] assume 0 == #t~ret2; [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L42-L51] ensures true; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=0, ~x=2.139095042E9] [L54] ensures true; VAL [#in~x=2.139095042E9, #NULL.base=0, #NULL.offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64-L67] assume 0 == #t~ret6; [L64] havoc #t~ret6; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2139095048, #NULL!offset=2139095043, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] COND TRUE 0 == #t~ret6 [L64] havoc #t~ret6; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2139095048, #NULL!offset=2139095043, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] COND TRUE 0 == #t~ret6 [L64] havoc #t~ret6; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2139095048, #NULL!offset=2139095043, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] COND TRUE 0 == #t~ret6 [L64] havoc #t~ret6; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2139095048, #NULL!offset=2139095043, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2139095048, old(#NULL!offset)=2139095043] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret7 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L60] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L61] ~y~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L62] CALL call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~x=2.139095045E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~mem0; [L25] havoc #t~union1; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, ~w~0=2139095041, ~x=2.139095045E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=2.139095045E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=2139095041, ~x=2.139095045E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=2.139095045E9, ~y=2.139095042E9] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=2.139095045E9, #in~y=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=2.139095042E9, ~x=2.139095045E9, ~y=2.139095042E9] [L62] RET call #t~ret5 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L62] ~res~0 := #t~ret5; [L62] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] CALL call #t~ret6 := isnan_float(~res~0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0] [L54] ~x := #in~x; [L54] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=2.139095042E9, #NULL!base=0, #NULL!offset=0, #res=0, ~x=2.139095042E9] [L64] RET call #t~ret6 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L64] COND TRUE 0 == #t~ret6 [L64] havoc #t~ret6; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L65] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=2.139095042E9, ~x~0=2.139095045E9, ~y~0=2.139095042E9] [L60] float x = 0.0f / 0.0f; [L61] float y = 0.0f / 0.0f; [L62] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095045, \old(y)=2139095042] [L43] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045] [L20] __uint32_t w; VAL [\old(x)=2139095045, x=2139095045] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; VAL [\old(x)=2139095045, \result=0, w=2139095041, x=2139095045] [L43] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045, \old(y)=2139095042, __fpclassify_float(x)=0, x=2139095045, y=2139095042] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; VAL [\old(x)=2139095045, \old(y)=2139095042, \result=2139095042, x=2139095045, y=2139095042] [L62] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=2139095042, x=2139095045, y=2139095042] [L62] float res = fmax_float(x, y); [L64] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095042] [L54] return x != x; VAL [\old(x)=2139095042, \result=0, x=2139095042] [L64] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095042, x=2139095045, y=2139095042] [L64] COND TRUE !isnan_float(res) [L65] __VERIFIER_error() VAL [res=2139095042, x=2139095045, y=2139095042] ----- [2018-11-23 04:06:17,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:06:17 BoogieIcfgContainer [2018-11-23 04:06:17,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:06:17,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:06:17,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:06:17,483 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:06:17,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:16" (3/4) ... [2018-11-23 04:06:17,488 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:06:17,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:06:17,489 INFO L168 Benchmark]: Toolchain (without parser) took 1223.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:17,490 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:17,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.38 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:17,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:17,492 INFO L168 Benchmark]: Boogie Preprocessor took 71.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:17,493 INFO L168 Benchmark]: RCFGBuilder took 248.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:17,494 INFO L168 Benchmark]: TraceAbstraction took 670.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:17,494 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:17,497 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.38 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 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 26.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 670.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 65]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L60] float x = 0.0f / 0.0f; [L61] float y = 0.0f / 0.0f; [L62] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095045, \old(y)=2139095042] [L43] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045] [L20] __uint32_t w; VAL [\old(x)=2139095045, x=2139095045] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; VAL [\old(x)=2139095045, \result=0, w=2139095041, x=2139095045] [L43] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045, \old(y)=2139095042, __fpclassify_float(x)=0, x=2139095045, y=2139095042] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; VAL [\old(x)=2139095045, \old(y)=2139095042, \result=2139095042, x=2139095045, y=2139095042] [L62] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=2139095042, x=2139095045, y=2139095042] [L62] float res = fmax_float(x, y); [L64] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095042] [L54] return x != x; VAL [\old(x)=2139095042, \result=0, x=2139095042] [L64] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095042, x=2139095045, y=2139095042] [L64] COND TRUE !isnan_float(res) [L65] __VERIFIER_error() VAL [res=2139095042, x=2139095045, y=2139095042] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 0 SDslu, 152 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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-aa41828 [2018-11-23 04:06:19,145 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-11-23 04:06:19,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:06:19,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:06:19,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:06:19,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:06:19,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:06:19,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:06:19,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:06:19,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:06:19,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:06:19,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:06:19,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:06:19,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:06:19,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:06:19,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 04:06:19,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:06:19,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:06:19,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:06:19,196 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:06:19,196 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:06:19,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:06:19,197 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:06:19,197 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:06:19,197 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:06:19,197 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:06:19,198 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:06:19,198 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:06:19,198 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:06:19,198 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:06:19,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:06:19,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:06:19,199 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:06:19,199 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 04:06:19,199 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 04:06:19,200 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:06:19,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:06:19,200 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:06:19,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:06:19,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:06:19,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:06:19,201 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:06:19,201 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:06:19,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:06:19,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:06:19,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:06:19,201 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:06:19,202 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 04:06:19,202 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:06:19,202 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 04:06:19,202 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 04:06:19,202 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_c6c22e69-2960-4873-885b-aff7099a3e5e/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2018-11-23 04:06:19,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:06:19,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:06:19,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:06:19,250 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:06:19,250 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:06:19,251 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:19,292 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5439395ee/4a719332d040413793dc94c6052c7a4d/FLAGe41931c1e [2018-11-23 04:06:19,625 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:06:19,626 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:19,632 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5439395ee/4a719332d040413793dc94c6052c7a4d/FLAGe41931c1e [2018-11-23 04:06:19,642 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/data/5439395ee/4a719332d040413793dc94c6052c7a4d [2018-11-23 04:06:19,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:06:19,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:06:19,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:06:19,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:06:19,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:06:19,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d0518e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19, skipping insertion in model container [2018-11-23 04:06:19,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:06:19,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:06:19,841 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:06:19,846 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:06:19,867 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:06:19,886 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:06:19,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19 WrapperNode [2018-11-23 04:06:19,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:06:19,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:06:19,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:06:19,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:06:19,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:06:19,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:06:19,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:06:19,909 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:06:19,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... [2018-11-23 04:06:19,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:06:19,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:06:19,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:06:19,939 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:06:19,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 [2018-11-23 04:06:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 04:06:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 04:06:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:06:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:06:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:06:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 04:06:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:06:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:06:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 04:06:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:06:20,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:06:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-23 04:06:20,048 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-23 04:06:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-23 04:06:20,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-23 04:06:20,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:06:20,234 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:06:20,261 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:06:20,261 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 04:06:20,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:20 BoogieIcfgContainer [2018-11-23 04:06:20,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:06:20,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:06:20,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:06:20,265 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:06:20,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:19" (1/3) ... [2018-11-23 04:06:20,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a4554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:20, skipping insertion in model container [2018-11-23 04:06:20,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:19" (2/3) ... [2018-11-23 04:06:20,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a4554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:20, skipping insertion in model container [2018-11-23 04:06:20,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:20" (3/3) ... [2018-11-23 04:06:20,268 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250_true-unreach-call.c [2018-11-23 04:06:20,275 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:06:20,281 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:06:20,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:06:20,320 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:06:20,320 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:06:20,321 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:06:20,321 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:06:20,321 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:06:20,321 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:06:20,321 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:06:20,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:06:20,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:06:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-23 04:06:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 04:06:20,338 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:20,339 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:20,340 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:20,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:20,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1373398522, now seen corresponding path program 1 times [2018-11-23 04:06:20,348 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:20,348 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 [2018-11-23 04:06:20,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:20,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:20,433 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:20,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:20,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:06:20,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:06:20,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:06:20,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:06:20,458 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-23 04:06:20,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:20,482 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2018-11-23 04:06:20,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:06:20,483 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-23 04:06:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:20,493 INFO L225 Difference]: With dead ends: 65 [2018-11-23 04:06:20,494 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 04:06:20,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:06:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 04:06:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-23 04:06:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:06:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-11-23 04:06:20,533 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 24 [2018-11-23 04:06:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:20,534 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-23 04:06:20,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:06:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2018-11-23 04:06:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 04:06:20,536 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:20,536 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:20,537 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:20,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:20,537 INFO L82 PathProgramCache]: Analyzing trace with hash 570225154, now seen corresponding path program 1 times [2018-11-23 04:06:20,538 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:20,538 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 [2018-11-23 04:06:20,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:20,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:20,631 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:20,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:20,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:20,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:20,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:20,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,643 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 4 states. [2018-11-23 04:06:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:20,667 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-23 04:06:20,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:20,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-23 04:06:20,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:20,670 INFO L225 Difference]: With dead ends: 46 [2018-11-23 04:06:20,670 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 04:06:20,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 04:06:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-23 04:06:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-23 04:06:20,679 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 25 [2018-11-23 04:06:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:20,679 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-23 04:06:20,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-23 04:06:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 04:06:20,680 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:20,680 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:20,681 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:20,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:20,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1732831305, now seen corresponding path program 1 times [2018-11-23 04:06:20,681 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:20,681 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:20,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:20,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:20,762 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:20,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:20,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:20,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:20,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:20,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,771 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-23 04:06:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:20,794 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-23 04:06:20,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:20,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-23 04:06:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:20,796 INFO L225 Difference]: With dead ends: 49 [2018-11-23 04:06:20,796 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 04:06:20,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 04:06:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-23 04:06:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-23 04:06:20,804 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 26 [2018-11-23 04:06:20,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:20,804 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-23 04:06:20,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-23 04:06:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 04:06:20,806 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:20,806 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:20,806 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:20,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:20,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2054695706, now seen corresponding path program 1 times [2018-11-23 04:06:20,807 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:20,807 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/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 [2018-11-23 04:06:20,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:20,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:20,878 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:20,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:20,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:20,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:20,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:20,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,887 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-23 04:06:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:20,914 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-23 04:06:20,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:20,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-23 04:06:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:20,916 INFO L225 Difference]: With dead ends: 49 [2018-11-23 04:06:20,916 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 04:06:20,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 04:06:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-23 04:06:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-23 04:06:20,922 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 27 [2018-11-23 04:06:20,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:20,922 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-23 04:06:20,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-23 04:06:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 04:06:20,923 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:20,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:20,924 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:20,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:20,924 INFO L82 PathProgramCache]: Analyzing trace with hash -382560787, now seen corresponding path program 1 times [2018-11-23 04:06:20,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:20,925 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:20,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:20,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:20,985 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:20,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:20,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:20,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:20,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:20,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:20,995 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-23 04:06:21,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:21,016 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-23 04:06:21,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:21,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-23 04:06:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:21,017 INFO L225 Difference]: With dead ends: 49 [2018-11-23 04:06:21,017 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 04:06:21,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:21,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 04:06:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-23 04:06:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-23 04:06:21,022 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 28 [2018-11-23 04:06:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:21,022 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-23 04:06:21,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-23 04:06:21,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 04:06:21,023 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:21,023 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:21,023 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:21,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:21,023 INFO L82 PathProgramCache]: Analyzing trace with hash -675963794, now seen corresponding path program 1 times [2018-11-23 04:06:21,024 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:21,024 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:21,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:21,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:06:21,206 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:21,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:21,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 04:06:21,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 04:06:21,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 04:06:21,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:06:21,216 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2018-11-23 04:06:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:21,453 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-23 04:06:21,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 04:06:21,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-23 04:06:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:21,456 INFO L225 Difference]: With dead ends: 43 [2018-11-23 04:06:21,456 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 04:06:21,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 04:06:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 04:06:21,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-11-23 04:06:21,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:06:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-11-23 04:06:21,462 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 28 [2018-11-23 04:06:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:21,462 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-11-23 04:06:21,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 04:06:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-23 04:06:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 04:06:21,465 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:21,465 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:21,465 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:21,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:21,466 INFO L82 PathProgramCache]: Analyzing trace with hash 61144778, now seen corresponding path program 1 times [2018-11-23 04:06:21,466 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:21,466 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:21,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:21,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 04:06:21,545 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:21,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:21,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:21,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:21,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:21,558 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2018-11-23 04:06:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:21,575 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-23 04:06:21,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:21,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-23 04:06:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:21,577 INFO L225 Difference]: With dead ends: 46 [2018-11-23 04:06:21,577 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 04:06:21,577 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 04:06:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-23 04:06:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-23 04:06:21,582 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 33 [2018-11-23 04:06:21,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:21,583 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-23 04:06:21,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-23 04:06:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 04:06:21,584 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:21,584 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:21,584 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:21,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:21,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1308604645, now seen corresponding path program 1 times [2018-11-23 04:06:21,585 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:21,585 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:21,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:21,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 04:06:21,666 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:21,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:21,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:21,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:21,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:21,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:21,675 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-23 04:06:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:21,694 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-11-23 04:06:21,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:21,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-23 04:06:21,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:21,696 INFO L225 Difference]: With dead ends: 49 [2018-11-23 04:06:21,696 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 04:06:21,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 04:06:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-23 04:06:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-23 04:06:21,701 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 34 [2018-11-23 04:06:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:21,701 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-23 04:06:21,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:21,702 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-23 04:06:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 04:06:21,702 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:21,702 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:21,703 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:21,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:21,703 INFO L82 PathProgramCache]: Analyzing trace with hash 922408263, now seen corresponding path program 1 times [2018-11-23 04:06:21,703 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:21,703 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:21,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:21,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 04:06:21,913 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:21,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:21,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 04:06:21,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 04:06:21,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 04:06:21,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-23 04:06:21,923 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 10 states. [2018-11-23 04:06:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:22,210 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-23 04:06:22,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 04:06:22,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-11-23 04:06:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:22,212 INFO L225 Difference]: With dead ends: 44 [2018-11-23 04:06:22,212 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 04:06:22,212 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-23 04:06:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 04:06:22,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-23 04:06:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:06:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-23 04:06:22,216 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 35 [2018-11-23 04:06:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:22,217 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-23 04:06:22,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 04:06:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-23 04:06:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 04:06:22,217 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:22,218 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:22,218 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:22,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 221343685, now seen corresponding path program 1 times [2018-11-23 04:06:22,219 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:22,219 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:22,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:22,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 04:06:22,358 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:22,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:22,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 04:06:22,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:06:22,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:06:22,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:06:22,373 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 5 states. [2018-11-23 04:06:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:22,492 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2018-11-23 04:06:22,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 04:06:22,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-23 04:06:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:22,494 INFO L225 Difference]: With dead ends: 46 [2018-11-23 04:06:22,494 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 04:06:22,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 04:06:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 04:06:22,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-23 04:06:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:06:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-23 04:06:22,498 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-23 04:06:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:22,498 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-23 04:06:22,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:06:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-23 04:06:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 04:06:22,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:22,499 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:22,499 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:22,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:22,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1994775826, now seen corresponding path program 1 times [2018-11-23 04:06:22,499 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:22,499 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:22,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:22,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 04:06:22,553 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:22,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:22,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:22,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:22,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:22,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:22,563 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-23 04:06:22,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:22,573 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-23 04:06:22,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:22,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-23 04:06:22,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:22,574 INFO L225 Difference]: With dead ends: 46 [2018-11-23 04:06:22,574 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 04:06:22,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 04:06:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 04:06:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:06:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-23 04:06:22,579 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-23 04:06:22,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:22,579 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-23 04:06:22,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:22,580 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-23 04:06:22,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-23 04:06:22,580 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:22,580 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:22,581 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:22,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:22,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1330109311, now seen corresponding path program 1 times [2018-11-23 04:06:22,581 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:22,581 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:22,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:22,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 04:06:22,686 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:22,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:22,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:06:22,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:06:22,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:06:22,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:22,701 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-23 04:06:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:22,714 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-23 04:06:22,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:06:22,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-23 04:06:22,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:22,715 INFO L225 Difference]: With dead ends: 46 [2018-11-23 04:06:22,715 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 04:06:22,716 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:06:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 04:06:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 04:06:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:06:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-23 04:06:22,720 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2018-11-23 04:06:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:22,721 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-23 04:06:22,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:06:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-23 04:06:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-23 04:06:22,722 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:06:22,722 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:06:22,722 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:06:22,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:06:22,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1036706304, now seen corresponding path program 1 times [2018-11-23 04:06:22,723 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:06:22,723 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-11-23 04:06:22,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:06:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:06:22,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:06:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 04:06:22,876 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:06:22,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:06:22,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 04:06:22,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 04:06:22,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 04:06:22,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:06:22,890 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 9 states. [2018-11-23 04:06:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:06:23,063 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-11-23 04:06:23,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 04:06:23,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-23 04:06:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:06:23,064 INFO L225 Difference]: With dead ends: 33 [2018-11-23 04:06:23,064 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 04:06:23,064 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 04:06:23,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 04:06:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 04:06:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 04:06:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:06:23,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-23 04:06:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:06:23,065 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:06:23,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 04:06:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:06:23,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:06:23,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 04:06:23,234 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 54) no Hoare annotation was computed. [2018-11-23 04:06:23,234 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 54) the Hoare annotation is: true [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 54) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 04:06:23,235 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L448 ceAbstractionStarter]: For program point L65(line 65) no Hoare annotation was computed. [2018-11-23 04:06:23,235 INFO L444 ceAbstractionStarter]: At program point L64(line 64) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~y~0 .cse0))) [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 64 67) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L444 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~y~0 .cse0) (= main_~x~0 .cse0))) [2018-11-23 04:06:23,236 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 56 70) the Hoare annotation is: true [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 56 70) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 56 70) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 65) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L448 ceAbstractionStarter]: For program point fmax_floatEXIT(lines 42 51) no Hoare annotation was computed. [2018-11-23 04:06:23,236 INFO L451 ceAbstractionStarter]: At program point fmax_floatENTRY(lines 42 51) the Hoare annotation is: true [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L444 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (and (= |fmax_float_#in~y| fmax_float_~y) (= |fmax_float_#in~x| fmax_float_~x)) [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L47-1(lines 47 49) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L444 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: (and (= |fmax_float_#in~y| fmax_float_~y) (= |fmax_float_#in~x| fmax_float_~x)) [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L43-1(lines 43 45) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point fmax_floatFINAL(lines 42 51) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 39) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 19 40) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 39) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 39) no Hoare annotation was computed. [2018-11-23 04:06:23,237 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-23 04:06:23,238 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-11-23 04:06:23,238 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 19 40) no Hoare annotation was computed. [2018-11-23 04:06:23,238 INFO L451 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 19 40) the Hoare annotation is: true [2018-11-23 04:06:23,238 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 19 40) no Hoare annotation was computed. [2018-11-23 04:06:23,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:06:23 BoogieIcfgContainer [2018-11-23 04:06:23,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:06:23,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:06:23,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:06:23,244 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:06:23,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:20" (3/4) ... [2018-11-23 04:06:23,248 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:06:23,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-23 04:06:23,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 04:06:23,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 04:06:23,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fmax_float [2018-11-23 04:06:23,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-23 04:06:23,256 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-23 04:06:23,257 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 04:06:23,257 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 04:06:23,293 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c6c22e69-2960-4873-885b-aff7099a3e5e/bin-2019/utaipan/witness.graphml [2018-11-23 04:06:23,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:06:23,294 INFO L168 Benchmark]: Toolchain (without parser) took 3649.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -259.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:23,295 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-23 04:06:23,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:23,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.74 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:23,296 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:06:23,297 INFO L168 Benchmark]: RCFGBuilder took 323.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -213.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:23,297 INFO L168 Benchmark]: TraceAbstraction took 2980.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.1 MB). Peak memory consumption was 298.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:23,297 INFO L168 Benchmark]: Witness Printer took 49.61 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:06:23,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.74 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.40 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 323.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -213.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2980.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.1 MB). Peak memory consumption was 298.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.61 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 65]: 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: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 31 SDslu, 1315 SDs, 0 SdLazy, 221 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 13 MinimizatonAttempts, 19 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 28 PreInvPairs, 33 NumberOfFragments, 48 HoareAnnotationTreeSize, 28 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 389 ConstructedInterpolants, 3 QuantifiedInterpolants, 21567 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1053 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...