./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:20:43,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:20:43,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:20:43,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:20:43,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:20:43,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:20:43,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:20:43,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:20:43,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:20:43,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:20:43,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:20:43,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:20:43,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:20:43,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:20:43,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:20:43,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:20:43,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:20:43,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:20:43,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:20:43,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:20:43,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:20:43,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:20:43,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:20:43,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:20:43,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:20:43,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:20:43,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:20:43,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:20:43,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:20:43,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:20:43,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:20:43,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:20:43,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:20:43,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:20:43,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:20:43,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:20:43,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:20:43,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:20:43,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:20:43,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:20:43,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:20:43,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:20:43,525 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:20:43,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:20:43,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:20:43,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:20:43,527 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:20:43,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:20:43,528 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:20:43,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:20:43,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:20:43,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:20:43,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:20:43,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:20:43,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:20:43,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:20:43,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:20:43,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:20:43,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:20:43,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:20:43,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:20:43,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:20:43,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:20:43,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:43,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:20:43,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:20:43,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:20:43,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:20:43,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:20:43,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:20:43,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-11-16 00:20:43,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:20:43,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:20:43,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:20:43,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:20:43,572 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:20:43,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-16 00:20:43,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/07abf9d94/13e3e398049f491a86c846e5f3a54cf1/FLAG1dbf565a5 [2019-11-16 00:20:44,069 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:20:44,070 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-16 00:20:44,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/07abf9d94/13e3e398049f491a86c846e5f3a54cf1/FLAG1dbf565a5 [2019-11-16 00:20:44,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/07abf9d94/13e3e398049f491a86c846e5f3a54cf1 [2019-11-16 00:20:44,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:20:44,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:20:44,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:44,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:20:44,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:20:44,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508e9bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44, skipping insertion in model container [2019-11-16 00:20:44,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,436 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:20:44,456 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:20:44,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:44,741 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:20:44,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:44,794 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:20:44,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44 WrapperNode [2019-11-16 00:20:44,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:44,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:44,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:20:44,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:20:44,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:44,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:20:44,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:20:44,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:20:44,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:20:44,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:20:44,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:20:44,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:20:44,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:20:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:20:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:20:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:20:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:20:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:20:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:20:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:20:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:20:45,276 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:20:45,276 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-16 00:20:45,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:45 BoogieIcfgContainer [2019-11-16 00:20:45,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:20:45,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:20:45,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:20:45,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:20:45,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:44" (1/3) ... [2019-11-16 00:20:45,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce1c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:45, skipping insertion in model container [2019-11-16 00:20:45,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44" (2/3) ... [2019-11-16 00:20:45,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce1c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:45, skipping insertion in model container [2019-11-16 00:20:45,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:45" (3/3) ... [2019-11-16 00:20:45,284 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-11-16 00:20:45,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:20:45,300 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:20:45,313 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:20:45,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:20:45,333 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:20:45,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:20:45,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:20:45,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:20:45,334 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:20:45,334 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:20:45,334 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:20:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-16 00:20:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-16 00:20:45,350 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:45,351 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:45,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:45,357 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-11-16 00:20:45,364 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:45,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582825750] [2019-11-16 00:20:45,364 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:45,364 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:45,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:45,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582825750] [2019-11-16 00:20:45,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:45,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:20:45,478 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346338131] [2019-11-16 00:20:45,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:20:45,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:45,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:20:45,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:20:45,494 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-16 00:20:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:45,509 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-11-16 00:20:45,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:20:45,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-16 00:20:45,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:45,519 INFO L225 Difference]: With dead ends: 70 [2019-11-16 00:20:45,520 INFO L226 Difference]: Without dead ends: 33 [2019-11-16 00:20:45,522 INFO L600 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 [2019-11-16 00:20:45,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-16 00:20:45,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-16 00:20:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-16 00:20:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-16 00:20:45,551 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-11-16 00:20:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:45,551 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-16 00:20:45,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:20:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-16 00:20:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:20:45,552 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:45,552 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:45,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:45,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:45,553 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-11-16 00:20:45,553 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:45,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094317338] [2019-11-16 00:20:45,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:45,554 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:45,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:20:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:20:45,663 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:20:45,664 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:20:45,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:45 BoogieIcfgContainer [2019-11-16 00:20:45,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:20:45,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:20:45,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:20:45,696 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:20:45,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:45" (3/4) ... [2019-11-16 00:20:45,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:20:45,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:20:45,702 INFO L168 Benchmark]: Toolchain (without parser) took 1279.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:45,703 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:20:45,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:45,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:45,704 INFO L168 Benchmark]: Boogie Preprocessor took 30.76 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. [2019-11-16 00:20:45,705 INFO L168 Benchmark]: RCFGBuilder took 406.17 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:45,706 INFO L168 Benchmark]: TraceAbstraction took 417.03 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:45,706 INFO L168 Benchmark]: Witness Printer took 4.09 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. [2019-11-16 00:20:45,709 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 406.17 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 417.03 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.09 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-11-16 00:20:47,710 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-16 00:20:47,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:20:47,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:20:47,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:20:47,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:20:47,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:20:47,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:20:47,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:20:47,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:20:47,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:20:47,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:20:47,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:20:47,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:20:47,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-16 00:20:47,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:20:47,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:20:47,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:20:47,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:20:47,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:20:47,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:20:47,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:20:47,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:20:47,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:20:47,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:20:47,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:20:47,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:20:47,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:20:47,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:20:47,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:20:47,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:20:47,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:20:47,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:20:47,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:20:47,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:20:47,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:20:47,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:20:47,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:20:47,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:20:47,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:20:47,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:20:47,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:20:47,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:20:47,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:20:47,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:20:47,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:20:47,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:20:47,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:20:47,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:20:47,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:47,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:20:47,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:20:47,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:20:47,779 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:20:47,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:20:47,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:20:47,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:20:47,780 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-11-16 00:20:47,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:20:47,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:20:47,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:20:47,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:20:47,821 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:20:47,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-16 00:20:47,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/d31eaa828/c17ef6628ddf49d189c3077af9d2bb80/FLAGe28597ecd [2019-11-16 00:20:48,223 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:20:48,225 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-11-16 00:20:48,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/d31eaa828/c17ef6628ddf49d189c3077af9d2bb80/FLAGe28597ecd [2019-11-16 00:20:48,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/data/d31eaa828/c17ef6628ddf49d189c3077af9d2bb80 [2019-11-16 00:20:48,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:20:48,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:20:48,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:48,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:20:48,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:20:48,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:48" (1/1) ... [2019-11-16 00:20:48,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d698ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:48, skipping insertion in model container [2019-11-16 00:20:48,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:48" (1/1) ... [2019-11-16 00:20:48,623 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:20:48,650 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:20:48,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:48,897 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:20:49,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:49,046 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:20:49,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49 WrapperNode [2019-11-16 00:20:49,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:49,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:49,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:20:49,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:20:49,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:49,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:20:49,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:20:49,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:20:49,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... [2019-11-16 00:20:49,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:20:49,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:20:49,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:20:49,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:20:49,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-16 00:20:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:20:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-16 00:20:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:20:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:20:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:20:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-16 00:20:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:20:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:20:58,090 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:20:58,091 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-16 00:20:58,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:58 BoogieIcfgContainer [2019-11-16 00:20:58,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:20:58,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:20:58,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:20:58,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:20:58,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:48" (1/3) ... [2019-11-16 00:20:58,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bb7fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:58, skipping insertion in model container [2019-11-16 00:20:58,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:49" (2/3) ... [2019-11-16 00:20:58,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bb7fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:58, skipping insertion in model container [2019-11-16 00:20:58,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:58" (3/3) ... [2019-11-16 00:20:58,099 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-11-16 00:20:58,107 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:20:58,114 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:20:58,123 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:20:58,144 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:20:58,144 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:20:58,144 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:20:58,145 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:20:58,145 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:20:58,145 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:20:58,145 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:20:58,145 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:20:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-16 00:20:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-16 00:20:58,164 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:58,165 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:58,166 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:58,171 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-11-16 00:20:58,181 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:20:58,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428212128] [2019-11-16 00:20:58,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:20:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:58,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:20:58,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:20:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:58,320 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:20:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:58,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428212128] [2019-11-16 00:20:58,324 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:58,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:20:58,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874976173] [2019-11-16 00:20:58,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:20:58,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:20:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:20:58,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:20:58,342 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-16 00:20:58,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:58,361 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-11-16 00:20:58,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:20:58,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-16 00:20:58,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:58,372 INFO L225 Difference]: With dead ends: 70 [2019-11-16 00:20:58,372 INFO L226 Difference]: Without dead ends: 33 [2019-11-16 00:20:58,375 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:20:58,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-16 00:20:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-16 00:20:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-16 00:20:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-16 00:20:58,405 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-11-16 00:20:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:58,406 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-16 00:20:58,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:20:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-16 00:20:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:20:58,406 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:58,407 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:58,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:20:58,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:58,621 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-11-16 00:20:58,622 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:20:58,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817019339] [2019-11-16 00:20:58,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-16 00:20:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:58,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:20:58,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:20:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:58,880 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:20:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:58,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817019339] [2019-11-16 00:20:58,960 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:58,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:20:58,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359992881] [2019-11-16 00:20:58,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:20:58,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:20:58,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:20:58,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:20:58,963 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-11-16 00:21:02,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:02,694 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-11-16 00:21:02,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:21:02,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-16 00:21:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:02,759 INFO L225 Difference]: With dead ends: 50 [2019-11-16 00:21:02,759 INFO L226 Difference]: Without dead ends: 29 [2019-11-16 00:21:02,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:21:02,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-16 00:21:02,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-16 00:21:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-16 00:21:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-16 00:21:02,765 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-11-16 00:21:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:02,765 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-16 00:21:02,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:21:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-16 00:21:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:21:02,766 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:02,767 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:02,980 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:21:02,980 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:02,980 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-11-16 00:21:02,981 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:02,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116226549] [2019-11-16 00:21:02,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:03,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-16 00:21:03,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:03,216 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:03,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116226549] [2019-11-16 00:21:03,626 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:03,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-11-16 00:21:03,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211155776] [2019-11-16 00:21:03,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:21:03,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:03,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:21:03,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:21:03,628 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2019-11-16 00:21:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:07,360 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-16 00:21:07,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:21:07,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-16 00:21:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:07,361 INFO L225 Difference]: With dead ends: 33 [2019-11-16 00:21:07,361 INFO L226 Difference]: Without dead ends: 29 [2019-11-16 00:21:07,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:21:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-16 00:21:07,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-16 00:21:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-16 00:21:07,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-16 00:21:07,365 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-11-16 00:21:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:07,365 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-16 00:21:07,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:21:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-16 00:21:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:21:07,366 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:07,366 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:07,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:21:07,569 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:07,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-11-16 00:21:07,569 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:07,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857472233] [2019-11-16 00:21:07,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:08,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-16 00:21:08,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:08,475 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:08,883 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-16 00:21:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:09,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857472233] [2019-11-16 00:21:09,062 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:09,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-16 00:21:09,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222675022] [2019-11-16 00:21:09,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:21:09,063 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:09,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:21:09,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:21:09,064 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-11-16 00:21:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:09,238 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-16 00:21:09,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:21:09,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-16 00:21:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:09,240 INFO L225 Difference]: With dead ends: 29 [2019-11-16 00:21:09,240 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:21:09,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:21:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:21:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:21:09,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:21:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:21:09,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-16 00:21:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:09,241 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:21:09,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:21:09,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:21:09,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:21:09,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-16 00:21:09,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:21:09,538 INFO L446 ceAbstractionStarter]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-11-16 00:21:09,538 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-16 00:21:09,538 INFO L443 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-11-16 00:21:09,538 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-16 00:21:09,538 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-11-16 00:21:09,538 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-16 00:21:09,539 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-16 00:21:09,540 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-16 00:21:09,541 INFO L439 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (.cse1 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse1)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) .cse1) (= ~one_exp~0 .cse0) (= ULTIMATE.start___ieee754_expf_~x .cse1) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))))) [2019-11-16 00:21:09,542 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-11-16 00:21:09,542 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0) (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24)))) [2019-11-16 00:21:09,542 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-11-16 00:21:09,542 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:21:09,542 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-11-16 00:21:09,542 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-16 00:21:09,543 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-11-16 00:21:09,543 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-11-16 00:21:09,543 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-16 00:21:09,543 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-11-16 00:21:09,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:21:09 BoogieIcfgContainer [2019-11-16 00:21:09,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:21:09,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:21:09,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:21:09,579 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:21:09,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:58" (3/4) ... [2019-11-16 00:21:09,599 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:21:09,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-16 00:21:09,619 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-16 00:21:09,651 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) [2019-11-16 00:21:09,720 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_222d7877-f8d5-4770-ad5b-e95d7b392266/bin/uautomizer/witness.graphml [2019-11-16 00:21:09,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:21:09,722 INFO L168 Benchmark]: Toolchain (without parser) took 21113.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.0 MB in the beginning and 959.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 134.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,722 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:21:09,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.07 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. [2019-11-16 00:21:09,723 INFO L168 Benchmark]: Boogie Preprocessor took 52.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,724 INFO L168 Benchmark]: RCFGBuilder took 8942.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,724 INFO L168 Benchmark]: TraceAbstraction took 11485.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.8 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,725 INFO L168 Benchmark]: Witness Printer took 141.55 ms. Allocated memory is still 1.2 GB. Free memory was 965.8 MB in the beginning and 959.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:09,727 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8942.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11485.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.8 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. * Witness Printer took 141.55 ms. Allocated memory is still 1.2 GB. Free memory was 965.8 MB in the beginning and 959.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-16 00:21:09,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-11-16 00:21:09,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) - InvariantResult [Line: 41]: Loop Invariant [2019-11-16 00:21:09,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:09,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 11.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 171 SDslu, 49 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 72 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9754 SizeOfPredicates, 17 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...