./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ........................................................................................................................................................................................................................................................................................................................................ 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_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 25 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:25:23,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:25:23,262 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:25:23,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:25:23,269 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:25:23,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:25:23,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:25:23,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:25:23,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:25:23,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:25:23,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:25:23,274 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:25:23,275 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:25:23,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:25:23,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:25:23,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:25:23,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:25:23,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:25:23,280 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:25:23,281 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:25:23,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:25:23,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:25:23,284 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:25:23,284 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:25:23,284 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:25:23,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:25:23,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:25:23,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:25:23,286 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:25:23,287 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:25:23,287 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:25:23,288 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:25:23,288 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:25:23,288 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:25:23,289 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:25:23,289 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:25:23,289 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:25:23,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:25:23,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:25:23,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:25:23,300 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:25:23,301 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:25:23,301 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:25:23,301 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:25:23,302 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:25:23,302 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:23,303 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:25:23,303 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:25:23,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:25:23,304 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_7328ea9f-907a-4856-9593-a88b92a673de/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2018-11-18 12:25:23,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:25:23,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:25:23,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:25:23,336 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:25:23,337 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:25:23,337 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:23,375 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/07f48804e/e0f92e595fa149fda2c2a73b2687fadc/FLAG0421e8d00 [2018-11-18 12:25:23,733 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:25:23,734 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:23,739 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/07f48804e/e0f92e595fa149fda2c2a73b2687fadc/FLAG0421e8d00 [2018-11-18 12:25:24,144 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/07f48804e/e0f92e595fa149fda2c2a73b2687fadc [2018-11-18 12:25:24,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:25:24,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:25:24,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:24,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:25:24,150 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:25:24,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5feb133c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24, skipping insertion in model container [2018-11-18 12:25:24,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:25:24,175 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:25:24,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:24,307 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:25:24,334 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:24,349 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:25:24,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24 WrapperNode [2018-11-18 12:25:24,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:24,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:25:24,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:25:24,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:25:24,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... [2018-11-18 12:25:24,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:25:24,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:25:24,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:25:24,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:25:24,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:25:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:25:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:25:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:25:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 12:25:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:25:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:25:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:25:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:25:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:25:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:25:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:25:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 12:25:24,657 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:25:24,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:24 BoogieIcfgContainer [2018-11-18 12:25:24,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:25:24,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:25:24,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:25:24,661 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:25:24,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:25:24" (1/3) ... [2018-11-18 12:25:24,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d10113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:24, skipping insertion in model container [2018-11-18 12:25:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:24" (2/3) ... [2018-11-18 12:25:24,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d10113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:24, skipping insertion in model container [2018-11-18 12:25:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:24" (3/3) ... [2018-11-18 12:25:24,663 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:24,669 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:25:24,672 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:25:24,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:25:24,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:25:24,702 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:25:24,702 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:25:24,702 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:25:24,702 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:25:24,703 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:25:24,703 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:25:24,703 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:25:24,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:25:24,716 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:25:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:25:24,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:24,720 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] [2018-11-18 12:25:24,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:24,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:24,725 INFO L82 PathProgramCache]: Analyzing trace with hash 2078642119, now seen corresponding path program 1 times [2018-11-18 12:25:24,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:25:24,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:25:24,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:24,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:24,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:24,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:24,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:25:24,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:25:24,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:25:24,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:24,859 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:25:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:25:24,874 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-11-18 12:25:24,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:25:24,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 12:25:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:25:24,880 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:25:24,881 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:25:24,882 INFO L604 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 [2018-11-18 12:25:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:25:24,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:25:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:25:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:25:24,907 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 24 [2018-11-18 12:25:24,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:25:24,907 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:25:24,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:25:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:25:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:25:24,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:24,909 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] [2018-11-18 12:25:24,909 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:24,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:24,909 INFO L82 PathProgramCache]: Analyzing trace with hash 653810238, now seen corresponding path program 1 times [2018-11-18 12:25:24,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:25:24,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:25:24,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:24,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:24,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:25:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:25:25,021 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:25:25,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:25:25 BoogieIcfgContainer [2018-11-18 12:25:25,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:25:25,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:25:25,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:25:25,043 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:25:25,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:24" (3/4) ... [2018-11-18 12:25:25,045 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:25:25,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:25:25,046 INFO L168 Benchmark]: Toolchain (without parser) took 898.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -121.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:25,047 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-18 12:25:25,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:25,047 INFO L168 Benchmark]: Boogie Preprocessor took 66.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -206.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:25,048 INFO L168 Benchmark]: RCFGBuilder took 241.22 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:25,048 INFO L168 Benchmark]: TraceAbstraction took 384.18 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:25,049 INFO L168 Benchmark]: Witness Printer took 2.75 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. [2018-11-18 12:25:25,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -206.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 241.22 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 384.18 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 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: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=10737418257, \old(Lg2_log)=10737418259, \old(Lg3_log)=10737418243, \old(Lg4_log)=10737418247, \old(Lg5_log)=10737418249, \old(Lg6_log)=10737418254, \old(Lg7_log)=10737418253, \old(ln2_hi_log)=10737418245, \old(ln2_lo_log)=10737418250, \old(two54_log)=10737418255, \old(zero)=10737418258, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L132] double x = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L133] CALL, EXPR __ieee754_log(x) VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L51] FCALL ieee_double_shape_type ew_u; [L52] FCALL ew_u.value = (x) [L53] EXPR, FCALL ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR, FCALL ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L55] COND FALSE !(0) VAL [\old(x)=0, hx=-2147483646, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L57] k = 0 VAL [\old(x)=0, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=0, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] RET return -two54_log / zero; VAL [\old(x)=0, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L133] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=10737418248, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L133] double res = __ieee754_log(x); [L136] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L19] __int32_t hx, lx; VAL [\old(x)=10737418248, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=10737418248, zero=0] [L21] FCALL ieee_double_shape_type ew_u; [L22] FCALL ew_u.value = (x) [L23] EXPR, FCALL ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR, FCALL ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L25] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483646, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=-2147483648, two54_log=18014398509481984, x=10737418248, zero=0] [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, hx=2146435073, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=-2147483648, two54_log=18014398509481984, x=10737418248, zero=0] [L136] EXPR isinf_double(res) VAL [isinf_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=10737418248, two54_log=18014398509481984, x=0, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=10737418248, two54_log=18014398509481984, x=0, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 0.1.23-5842f4b [2018-11-18 12:25:26,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:25:26,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:25:26,437 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:25:26,437 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:25:26,438 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:25:26,439 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:25:26,441 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:25:26,442 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:25:26,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:25:26,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:25:26,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:25:26,444 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:25:26,445 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:25:26,446 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:25:26,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:25:26,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:25:26,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:25:26,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:25:26,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:25:26,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:25:26,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:25:26,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:25:26,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:25:26,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:25:26,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:25:26,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:25:26,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:25:26,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:25:26,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:25:26,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:25:26,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:25:26,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:25:26,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:25:26,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:25:26,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:25:26,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:25:26,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:25:26,473 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:25:26,473 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:25:26,473 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:25:26,474 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:25:26,474 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:25:26,474 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:25:26,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:25:26,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:25:26,475 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:25:26,475 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:25:26,476 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:25:26,476 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:25:26,476 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:25:26,476 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:25:26,476 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:25:26,477 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:25:26,477 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:25:26,478 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:25:26,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:26,478 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:25:26,478 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:25:26,478 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:25:26,478 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:25:26,479 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:25:26,479 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:25:26,479 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:25:26,481 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_7328ea9f-907a-4856-9593-a88b92a673de/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2018-11-18 12:25:26,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:25:26,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:25:26,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:25:26,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:25:26,525 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:25:26,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:26,567 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/2f921adb0/e62e3ab630834683b5ec35007b423bdf/FLAG9ef3357bc [2018-11-18 12:25:26,977 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:25:26,977 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:26,982 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/2f921adb0/e62e3ab630834683b5ec35007b423bdf/FLAG9ef3357bc [2018-11-18 12:25:26,990 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/data/2f921adb0/e62e3ab630834683b5ec35007b423bdf [2018-11-18 12:25:26,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:25:26,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:25:26,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:26,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:25:26,995 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:25:26,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:26" (1/1) ... [2018-11-18 12:25:26,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:26, skipping insertion in model container [2018-11-18 12:25:26,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:26" (1/1) ... [2018-11-18 12:25:27,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:25:27,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:25:27,156 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:27,160 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:25:27,193 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:27,212 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:25:27,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27 WrapperNode [2018-11-18 12:25:27,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:27,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:25:27,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:25:27,213 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:25:27,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... [2018-11-18 12:25:27,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:25:27,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:25:27,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:25:27,302 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:25:27,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:25:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:25:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:25:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:25:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 12:25:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 12:25:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:25:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:25:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:25:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 12:25:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 12:25:27,465 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:49,886 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:49,944 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:50,065 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:50,088 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:25:50,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:50 BoogieIcfgContainer [2018-11-18 12:25:50,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:25:50,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:25:50,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:25:50,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:25:50,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:25:26" (1/3) ... [2018-11-18 12:25:50,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc5c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:50, skipping insertion in model container [2018-11-18 12:25:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:27" (2/3) ... [2018-11-18 12:25:50,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc5c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:50, skipping insertion in model container [2018-11-18 12:25:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:50" (3/3) ... [2018-11-18 12:25:50,094 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a_true-unreach-call.c [2018-11-18 12:25:50,100 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:25:50,104 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:25:50,112 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:25:50,129 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:25:50,129 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:25:50,129 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:25:50,129 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:25:50,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:25:50,130 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:25:50,130 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:25:50,130 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:25:50,130 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:25:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-18 12:25:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:25:50,143 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:50,143 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:50,145 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:50,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:50,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1219439847, now seen corresponding path program 1 times [2018-11-18 12:25:50,150 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:25:50,150 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:25:50,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:50,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:25:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:50,877 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:25:50,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:50,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:25:50,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:25:50,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:25:50,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:50,907 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-18 12:25:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:25:50,922 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2018-11-18 12:25:50,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:25:50,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 12:25:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:25:50,929 INFO L225 Difference]: With dead ends: 80 [2018-11-18 12:25:50,929 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:25:50,931 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:25:50,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 12:25:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:25:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2018-11-18 12:25:50,962 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 23 [2018-11-18 12:25:50,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:25:50,962 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-11-18 12:25:50,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:25:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-11-18 12:25:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:25:50,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:50,963 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] [2018-11-18 12:25:50,964 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:50,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash 545852492, now seen corresponding path program 1 times [2018-11-18 12:25:50,964 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:25:50,965 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:25:50,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:51,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:25:54,286 WARN L854 $PredicateComparison]: unable to prove that (and (= |c___ieee754_log_#res| (fp.div roundNearestTiesToEven (fp.neg c_~two54_log~0) c_~zero~0)) (= c_~two54_log~0 ((_ to_fp 11 53) roundNearestTiesToEven 18014398509481984.0)) (= (_ +zero 11 53) c_~zero~0)) is different from true [2018-11-18 12:25:54,347 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:54,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:54,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:25:54,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-18 12:25:54,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:54,402 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 17 treesize of output 13 [2018-11-18 12:25:54,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 12:25:54,413 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:54,415 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:54,419 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:54,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:25:54,433 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:25:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:54,652 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:25:54,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:54,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:25:54,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:25:54,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:25:54,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=58, Unknown=1, NotChecked=14, Total=90 [2018-11-18 12:25:54,677 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 10 states. [2018-11-18 12:26:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:02,562 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2018-11-18 12:26:02,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:26:02,563 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-11-18 12:26:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:02,563 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:26:02,564 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:26:02,564 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=47, Invalid=166, Unknown=1, NotChecked=26, Total=240 [2018-11-18 12:26:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:26:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 12:26:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:26:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-11-18 12:26:02,570 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 25 [2018-11-18 12:26:02,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:02,571 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-11-18 12:26:02,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:26:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-11-18 12:26:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:26:02,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:02,572 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] [2018-11-18 12:26:02,572 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:02,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:02,572 INFO L82 PathProgramCache]: Analyzing trace with hash -943798867, now seen corresponding path program 1 times [2018-11-18 12:26:02,572 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:26:02,573 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:26:02,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:02,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:02,735 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:26:02,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:02,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:26:02,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:26:02,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:26:02,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:26:02,745 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 6 states. [2018-11-18 12:26:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:12,551 INFO L93 Difference]: Finished difference Result 68 states and 84 transitions. [2018-11-18 12:26:13,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:26:13,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 12:26:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:13,153 INFO L225 Difference]: With dead ends: 68 [2018-11-18 12:26:13,153 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:26:13,153 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:26:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:26:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-18 12:26:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:26:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-18 12:26:13,159 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 25 [2018-11-18 12:26:13,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:13,159 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-18 12:26:13,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:26:13,160 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-18 12:26:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:26:13,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:13,160 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] [2018-11-18 12:26:13,161 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:13,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:13,161 INFO L82 PathProgramCache]: Analyzing trace with hash -728685715, now seen corresponding path program 1 times [2018-11-18 12:26:13,161 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:26:13,161 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/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 [2018-11-18 12:26:13,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:13,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:13,947 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:26:13,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:13,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:26:13,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:26:13,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:26:13,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:26:13,964 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2018-11-18 12:26:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:21,681 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-11-18 12:26:21,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:26:21,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-18 12:26:21,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:21,683 INFO L225 Difference]: With dead ends: 53 [2018-11-18 12:26:21,683 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:26:21,684 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:26:21,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:26:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 12:26:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:26:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2018-11-18 12:26:21,690 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 26 [2018-11-18 12:26:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:21,690 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2018-11-18 12:26:21,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:26:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2018-11-18 12:26:21,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 12:26:21,691 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:21,691 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] [2018-11-18 12:26:21,692 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:21,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:21,692 INFO L82 PathProgramCache]: Analyzing trace with hash 100582556, now seen corresponding path program 1 times [2018-11-18 12:26:21,692 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:26:21,693 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7328ea9f-907a-4856-9593-a88b92a673de/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:26:21,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:22,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:22,175 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:22,175 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:22,176 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:22,179 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:22,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-11-18 12:26:22,411 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2018-11-18 12:26:22,411 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_3 term size 25 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 12:26:22,413 INFO L168 Benchmark]: Toolchain (without parser) took 55421.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.5 MB in the beginning and 914.5 MB in the end (delta: 36.1 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:22,414 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:26:22,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 933.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:22,415 INFO L168 Benchmark]: Boogie Preprocessor took 89.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:22,415 INFO L168 Benchmark]: RCFGBuilder took 22786.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:22,415 INFO L168 Benchmark]: TraceAbstraction took 32323.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.5 MB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:22,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 219.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 933.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22786.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32323.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.5 MB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 25 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_3 term size 25: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...