./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:22:19,586 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:22:19,587 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:22:19,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:22:19,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:22:19,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:22:19,596 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:22:19,597 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:22:19,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:22:19,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:22:19,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:22:19,600 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:22:19,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:22:19,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:22:19,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:22:19,602 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:22:19,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:22:19,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:22:19,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:22:19,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:22:19,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:22:19,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:22:19,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:22:19,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:22:19,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:22:19,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:22:19,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:22:19,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:22:19,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:22:19,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:22:19,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:22:19,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:22:19,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:22:19,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:22:19,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:22:19,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:22:19,616 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-09 23:22:19,625 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:22:19,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:22:19,626 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:22:19,626 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:22:19,627 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:22:19,627 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:22:19,627 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:22:19,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:22:19,627 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:22:19,627 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:22:19,627 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:22:19,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:22:19,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:22:19,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:22:19,629 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:22:19,630 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 23:22:19,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:22:19,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 23:22:19,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-09 23:22:19,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:22:19,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:22:19,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:22:19,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:22:19,663 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:22:19,663 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:19,704 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/b9b193bbd/ccb261699bff4c39b29360b1fe9e5f28/FLAG2a19dab24 [2018-11-09 23:22:20,098 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:22:20,098 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:20,102 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/b9b193bbd/ccb261699bff4c39b29360b1fe9e5f28/FLAG2a19dab24 [2018-11-09 23:22:20,111 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/b9b193bbd/ccb261699bff4c39b29360b1fe9e5f28 [2018-11-09 23:22:20,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:22:20,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 23:22:20,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:22:20,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:22:20,117 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:22:20,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20, skipping insertion in model container [2018-11-09 23:22:20,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:22:20,139 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:22:20,248 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:22:20,250 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:22:20,264 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:22:20,277 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:22:20,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20 WrapperNode [2018-11-09 23:22:20,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:22:20,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:22:20,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:22:20,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:22:20,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... [2018-11-09 23:22:20,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:22:20,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:22:20,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:22:20,312 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:22:20,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:22:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 23:22:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:22:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-09 23:22:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-09 23:22:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 23:22:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 23:22:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 23:22:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:22:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-09 23:22:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-09 23:22:20,607 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:22:20,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:20 BoogieIcfgContainer [2018-11-09 23:22:20,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:22:20,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 23:22:20,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 23:22:20,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 23:22:20,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:22:20" (1/3) ... [2018-11-09 23:22:20,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c261a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:22:20, skipping insertion in model container [2018-11-09 23:22:20,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:20" (2/3) ... [2018-11-09 23:22:20,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c261a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:22:20, skipping insertion in model container [2018-11-09 23:22:20,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:20" (3/3) ... [2018-11-09 23:22:20,613 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:20,621 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 23:22:20,628 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 23:22:20,641 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 23:22:20,667 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:22:20,668 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 23:22:20,668 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 23:22:20,668 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 23:22:20,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:22:20,668 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:22:20,668 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 23:22:20,668 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:22:20,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 23:22:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-11-09 23:22:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-09 23:22:20,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:20,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:20,691 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:20,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:20,695 INFO L82 PathProgramCache]: Analyzing trace with hash -530724520, now seen corresponding path program 1 times [2018-11-09 23:22:20,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:22:20,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:22:20,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:22:20,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:20,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:22:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:22:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:22:20,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:22:20,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 23:22:20,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-09 23:22:20,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 23:22:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 23:22:20,825 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2018-11-09 23:22:20,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:22:20,842 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2018-11-09 23:22:20,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 23:22:20,843 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-09 23:22:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:22:20,851 INFO L225 Difference]: With dead ends: 102 [2018-11-09 23:22:20,851 INFO L226 Difference]: Without dead ends: 51 [2018-11-09 23:22:20,853 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 23:22:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-09 23:22:20,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-11-09 23:22:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-09 23:22:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-11-09 23:22:20,879 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 22 [2018-11-09 23:22:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:22:20,880 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-11-09 23:22:20,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-09 23:22:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-11-09 23:22:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-09 23:22:20,881 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:20,881 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:20,881 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:20,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:20,882 INFO L82 PathProgramCache]: Analyzing trace with hash -341680254, now seen corresponding path program 1 times [2018-11-09 23:22:20,882 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:22:20,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:22:20,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:22:20,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:20,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:22:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:22:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:22:20,964 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-09 23:22:20,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:22:20 BoogieIcfgContainer [2018-11-09 23:22:20,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 23:22:20,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:22:20,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:22:20,984 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:22:20,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:20" (3/4) ... [2018-11-09 23:22:20,986 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 23:22:20,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:22:20,987 INFO L168 Benchmark]: Toolchain (without parser) took 873.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -126.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:20,988 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:22:20,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:20,989 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:20,989 INFO L168 Benchmark]: RCFGBuilder took 295.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:20,990 INFO L168 Benchmark]: TraceAbstraction took 375.78 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:20,990 INFO L168 Benchmark]: Witness Printer took 3.09 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. [2018-11-09 23:22:20,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 295.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.78 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 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: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=133, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, x=134] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=134, gf_u={129:0}, huge_ceil=1000000000000000000000000000000, x=134] [L18] FCALL gf_u.value = (x) VAL [\old(x)=134, gf_u={129:0}, huge_ceil=1000000000000000000000000000000, x=134] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=134, gf_u={129:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, x=134] [L19] (i0) = gf_u.word VAL [(i0) = gf_u.word=131, \old(x)=134, gf_u={129:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, i0=3, x=134] [L20] COND FALSE !(0) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i0=3, x=134] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L68] EXPR ceil_float(x) VAL [ceil_float(x)=132, huge_ceil=1000000000000000000000000000000, x=134] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=132, huge_ceil=1000000000000000000000000000000] [L57] RET return x != x; VAL [\old(x)=132, \result=0, huge_ceil=1000000000000000000000000000000, x=132] [L71] EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=132, x=134] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=132, x=134] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 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=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:22:22,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:22:22,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:22:22,644 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:22:22,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:22:22,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:22:22,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:22:22,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:22:22,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:22:22,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:22:22,650 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:22:22,651 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:22:22,651 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:22:22,652 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:22:22,653 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:22:22,654 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:22:22,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:22:22,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:22:22,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:22:22,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:22:22,659 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:22:22,660 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:22:22,662 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:22:22,663 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:22:22,663 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:22:22,664 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:22:22,664 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:22:22,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:22:22,666 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:22:22,667 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:22:22,667 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:22:22,667 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:22:22,667 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:22:22,668 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:22:22,668 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:22:22,669 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:22:22,669 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-09 23:22:22,681 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:22:22,681 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:22:22,682 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:22:22,682 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:22:22,683 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:22:22,683 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:22:22,683 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:22:22,683 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:22:22,684 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:22:22,685 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-09 23:22:22,685 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-09 23:22:22,685 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:22:22,685 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:22:22,685 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:22:22,685 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:22:22,686 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:22:22,686 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:22:22,686 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 23:22:22,686 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:22:22,686 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:22:22,686 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-09 23:22:22,687 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-09 23:22:22,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:22:22,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:22:22,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:22:22,738 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:22:22,738 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:22:22,739 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:22,794 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/5a659c4bd/6ddff88761444e9fbb10288667a52393/FLAGb0726ac92 [2018-11-09 23:22:23,147 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:22:23,147 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:23,152 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/5a659c4bd/6ddff88761444e9fbb10288667a52393/FLAGb0726ac92 [2018-11-09 23:22:23,162 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/data/5a659c4bd/6ddff88761444e9fbb10288667a52393 [2018-11-09 23:22:23,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:22:23,166 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 23:22:23,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:22:23,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:22:23,169 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:22:23,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d68c770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23, skipping insertion in model container [2018-11-09 23:22:23,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:22:23,199 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:22:23,347 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:22:23,351 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:22:23,374 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:22:23,393 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:22:23,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23 WrapperNode [2018-11-09 23:22:23,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:22:23,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:22:23,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:22:23,395 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:22:23,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... [2018-11-09 23:22:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:22:23,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:22:23,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:22:23,433 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:22:23,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:22:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 23:22:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:22:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-09 23:22:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-09 23:22:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 23:22:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 23:22:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-09 23:22:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-09 23:22:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-09 23:22:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 23:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-09 23:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-09 23:22:23,837 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 23:22:23,856 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 23:22:24,103 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:22:24,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:24 BoogieIcfgContainer [2018-11-09 23:22:24,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:22:24,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 23:22:24,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 23:22:24,108 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 23:22:24,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:22:23" (1/3) ... [2018-11-09 23:22:24,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a81d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:22:24, skipping insertion in model container [2018-11-09 23:22:24,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:22:23" (2/3) ... [2018-11-09 23:22:24,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a81d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:22:24, skipping insertion in model container [2018-11-09 23:22:24,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:24" (3/3) ... [2018-11-09 23:22:24,111 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-09 23:22:24,118 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 23:22:24,124 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 23:22:24,134 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 23:22:24,156 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:22:24,157 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 23:22:24,157 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 23:22:24,157 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 23:22:24,157 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:22:24,157 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:22:24,157 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 23:22:24,157 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:22:24,157 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 23:22:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-09 23:22:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-09 23:22:24,174 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:24,175 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:24,176 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:24,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:24,180 INFO L82 PathProgramCache]: Analyzing trace with hash -218769555, now seen corresponding path program 1 times [2018-11-09 23:22:24,183 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 23:22:24,184 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-09 23:22:24,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:22:24,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:22:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:22:24,263 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 23:22:24,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:22:24,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 23:22:24,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-09 23:22:24,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 23:22:24,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 23:22:24,292 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-09 23:22:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:22:24,314 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2018-11-09 23:22:24,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 23:22:24,315 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-09 23:22:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:22:24,325 INFO L225 Difference]: With dead ends: 100 [2018-11-09 23:22:24,325 INFO L226 Difference]: Without dead ends: 50 [2018-11-09 23:22:24,329 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 23:22:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-09 23:22:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-09 23:22:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-09 23:22:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2018-11-09 23:22:24,364 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 21 [2018-11-09 23:22:24,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:22:24,364 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2018-11-09 23:22:24,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-09 23:22:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2018-11-09 23:22:24,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-09 23:22:24,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:24,367 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:24,367 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:24,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:24,368 INFO L82 PathProgramCache]: Analyzing trace with hash -422701050, now seen corresponding path program 1 times [2018-11-09 23:22:24,368 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 23:22:24,368 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-09 23:22:24,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:22:24,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:22:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:22:24,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 23:22:24,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:22:24,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-09 23:22:24,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-09 23:22:24,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-09 23:22:24,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-09 23:22:24,919 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 9 states. [2018-11-09 23:22:25,278 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-09 23:22:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:22:26,657 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-11-09 23:22:26,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-09 23:22:26,658 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-09 23:22:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:22:26,660 INFO L225 Difference]: With dead ends: 59 [2018-11-09 23:22:26,660 INFO L226 Difference]: Without dead ends: 52 [2018-11-09 23:22:26,661 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-09 23:22:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-09 23:22:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-11-09 23:22:26,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-09 23:22:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-11-09 23:22:26,671 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 30 [2018-11-09 23:22:26,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:22:26,672 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-11-09 23:22:26,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-09 23:22:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-11-09 23:22:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-09 23:22:26,673 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:26,673 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:26,673 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:26,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:26,674 INFO L82 PathProgramCache]: Analyzing trace with hash -619214555, now seen corresponding path program 1 times [2018-11-09 23:22:26,674 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 23:22:26,674 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-09 23:22:26,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:22:26,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:22:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:22:26,831 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 23:22:26,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:22:26,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-09 23:22:26,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-09 23:22:26,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-09 23:22:26,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-09 23:22:26,848 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 9 states. [2018-11-09 23:22:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:22:27,435 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-11-09 23:22:27,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-09 23:22:27,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-09 23:22:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:22:27,437 INFO L225 Difference]: With dead ends: 57 [2018-11-09 23:22:27,437 INFO L226 Difference]: Without dead ends: 49 [2018-11-09 23:22:27,438 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-09 23:22:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-09 23:22:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-09 23:22:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-09 23:22:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-09 23:22:27,442 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 30 [2018-11-09 23:22:27,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:22:27,442 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-09 23:22:27,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-09 23:22:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-09 23:22:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-09 23:22:27,444 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:22:27,444 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:22:27,444 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:22:27,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:22:27,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1366129343, now seen corresponding path program 1 times [2018-11-09 23:22:27,444 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 23:22:27,445 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-09 23:22:27,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:22:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:22:27,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:22:27,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-09 23:22:27,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-09 23:22:27,552 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,564 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-09 23:22:27,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-09 23:22:27,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-09 23:22:27,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 23:22:27,590 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-09 23:22:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:22:27,754 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 23:22:27,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:22:27,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-09 23:22:27,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-09 23:22:27,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-09 23:22:27,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-09 23:22:27,772 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 9 states. [2018-11-09 23:22:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:22:28,932 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-11-09 23:22:28,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-09 23:22:28,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-11-09 23:22:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:22:28,934 INFO L225 Difference]: With dead ends: 63 [2018-11-09 23:22:28,934 INFO L226 Difference]: Without dead ends: 0 [2018-11-09 23:22:28,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-11-09 23:22:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-09 23:22:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-09 23:22:28,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-09 23:22:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 23:22:28,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-11-09 23:22:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:22:28,936 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:22:28,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-09 23:22:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-09 23:22:28,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 23:22:28,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-09 23:22:29,017 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-11-09 23:22:29,017 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-11-09 23:22:29,017 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-11-09 23:22:29,018 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-09 23:22:29,018 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-09 23:22:29,018 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-09 23:22:29,018 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-09 23:22:29,018 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-09 23:22:29,018 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-09 23:22:29,018 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-09 23:22:29,019 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-11-09 23:22:29,019 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-11-09 23:22:29,019 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-11-09 23:22:29,019 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-11-09 23:22:29,019 INFO L425 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-11-09 23:22:29,019 INFO L421 ceAbstractionStarter]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-11-09 23:22:29,019 INFO L425 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L421 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-09 23:22:29,020 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-09 23:22:29,021 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L49-3(line 49) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-09 23:22:29,022 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-09 23:22:29,023 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-09 23:22:29,024 INFO L425 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-11-09 23:22:29,024 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-09 23:22:29,024 INFO L425 ceAbstractionStarter]: For program point L51-1(line 51) no Hoare annotation was computed. [2018-11-09 23:22:29,024 INFO L425 ceAbstractionStarter]: For program point L51-2(line 51) no Hoare annotation was computed. [2018-11-09 23:22:29,024 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-09 23:22:29,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:22:29 BoogieIcfgContainer [2018-11-09 23:22:29,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 23:22:29,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:22:29,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:22:29,035 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:22:29,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:22:24" (3/4) ... [2018-11-09 23:22:29,038 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 23:22:29,043 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-09 23:22:29,043 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-09 23:22:29,044 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-09 23:22:29,044 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-09 23:22:29,048 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-09 23:22:29,048 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-09 23:22:29,048 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 23:22:29,069 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-09 23:22:29,093 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7a808eae-35be-4644-85a5-dcd4ed92f19b/bin-2019/uautomizer/witness.graphml [2018-11-09 23:22:29,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:22:29,094 INFO L168 Benchmark]: Toolchain (without parser) took 5928.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.8 MB in the beginning and 920.1 MB in the end (delta: 29.7 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:29,095 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:22:29,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.45 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:29,096 INFO L168 Benchmark]: Boogie Preprocessor took 38.04 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:22:29,096 INFO L168 Benchmark]: RCFGBuilder took 671.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:29,097 INFO L168 Benchmark]: TraceAbstraction took 4929.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.0 MB in the end (delta: 185.3 MB). Peak memory consumption was 185.3 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:29,097 INFO L168 Benchmark]: Witness Printer took 59.19 ms. Allocated memory is still 1.2 GB. Free memory was 927.0 MB in the beginning and 920.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:22:29,099 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.45 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.04 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 671.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4929.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.0 MB in the end (delta: 185.3 MB). Peak memory consumption was 185.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.19 ms. Allocated memory is still 1.2 GB. Free memory was 927.0 MB in the beginning and 920.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 155 SDslu, 707 SDs, 0 SdLazy, 275 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 16 QuantifiedInterpolants, 25014 SizeOfPredicates, 17 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...