./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 16:05:58,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 16:05:58,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 16:05:58,626 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 16:05:58,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 16:05:58,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 16:05:58,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 16:05:58,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 16:05:58,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 16:05:58,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 16:05:58,630 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 16:05:58,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 16:05:58,631 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 16:05:58,632 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 16:05:58,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 16:05:58,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 16:05:58,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 16:05:58,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 16:05:58,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 16:05:58,637 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 16:05:58,638 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 16:05:58,639 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 16:05:58,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 16:05:58,640 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 16:05:58,641 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 16:05:58,641 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 16:05:58,642 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 16:05:58,642 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 16:05:58,643 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 16:05:58,644 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 16:05:58,644 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 16:05:58,644 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 16:05:58,644 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 16:05:58,645 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 16:05:58,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 16:05:58,646 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 16:05:58,646 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 16:05:58,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 16:05:58,655 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 16:05:58,655 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 16:05:58,655 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 16:05:58,656 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 16:05:58,656 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 16:05:58,656 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 16:05:58,656 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 16:05:58,656 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 16:05:58,656 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 16:05:58,657 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 16:05:58,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 16:05:58,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 16:05:58,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 16:05:58,658 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 16:05:58,658 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 16:05:58,658 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:05:58,658 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 16:05:58,659 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 16:05:58,659 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 16:05:58,659 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 16:05:58,659 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 16:05:58,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 16:05:58,659 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_59852845-65f3-42b3-bca6-aeffe0541bf6/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-11-23 16:05:58,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 16:05:58,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 16:05:58,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 16:05:58,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 16:05:58,692 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 16:05:58,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:05:58,728 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/db361caac/c8557aeab92b43e08cb4e610208eb332/FLAG94222ff86 [2018-11-23 16:05:59,123 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 16:05:59,123 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:05:59,129 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/db361caac/c8557aeab92b43e08cb4e610208eb332/FLAG94222ff86 [2018-11-23 16:05:59,138 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/db361caac/c8557aeab92b43e08cb4e610208eb332 [2018-11-23 16:05:59,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 16:05:59,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 16:05:59,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:59,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 16:05:59,144 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 16:05:59,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed7bee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59, skipping insertion in model container [2018-11-23 16:05:59,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 16:05:59,166 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 16:05:59,282 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:59,284 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 16:05:59,300 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:59,313 INFO L195 MainTranslator]: Completed translation [2018-11-23 16:05:59,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59 WrapperNode [2018-11-23 16:05:59,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:59,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:59,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 16:05:59,314 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 16:05:59,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:59,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 16:05:59,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 16:05:59,329 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 16:05:59,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... [2018-11-23 16:05:59,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 16:05:59,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 16:05:59,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 16:05:59,386 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 16:05:59,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:05:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 16:05:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 16:05:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 16:05:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 16:05:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 16:05:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 16:05:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-23 16:05:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 16:05:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 16:05:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 16:05:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 16:05:59,572 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 16:05:59,572 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 16:05:59,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:59 BoogieIcfgContainer [2018-11-23 16:05:59,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 16:05:59,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 16:05:59,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 16:05:59,576 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 16:05:59,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:59" (1/3) ... [2018-11-23 16:05:59,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644009ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:59, skipping insertion in model container [2018-11-23 16:05:59,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:59" (2/3) ... [2018-11-23 16:05:59,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644009ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:59, skipping insertion in model container [2018-11-23 16:05:59,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:59" (3/3) ... [2018-11-23 16:05:59,578 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:05:59,585 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 16:05:59,591 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 16:05:59,602 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 16:05:59,619 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 16:05:59,619 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 16:05:59,619 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 16:05:59,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 16:05:59,620 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 16:05:59,620 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 16:05:59,620 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 16:05:59,620 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 16:05:59,620 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 16:05:59,632 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-23 16:05:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 16:05:59,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:59,636 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:59,637 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:59,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash 564888569, now seen corresponding path program 1 times [2018-11-23 16:05:59,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:59,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:59,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:59,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:59,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:59,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:59,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 16:05:59,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 16:05:59,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 16:05:59,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:05:59,731 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-23 16:05:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:59,743 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-23 16:05:59,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 16:05:59,744 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 16:05:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:59,750 INFO L225 Difference]: With dead ends: 68 [2018-11-23 16:05:59,750 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 16:05:59,752 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:05:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 16:05:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-23 16:05:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 16:05:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-23 16:05:59,774 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-23 16:05:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:59,774 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-23 16:05:59,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 16:05:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-23 16:05:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 16:05:59,775 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:59,775 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:59,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:59,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:59,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1333163618, now seen corresponding path program 1 times [2018-11-23 16:05:59,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:59,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:59,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:59,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:59,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 16:05:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 16:05:59,838 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=12, |#NULL.offset|=5, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] RET #91#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret9 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := round_float(~x~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; VAL [round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~w~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~union1;havoc #t~mem0;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] goto; VAL [round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume !(~exponent_less_127~0 < 23); VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume true; VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=9, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] RET #95#return; VAL [main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret6|=7.0] [?] ~res~0 := #t~ret6;havoc #t~ret6;#t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [main_~res~0=7.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short8|=false] [?] assume !#t~short8; VAL [main_~res~0=7.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short8|=false] [?] assume !#t~short8;havoc #t~short8;havoc #t~ret7; VAL [main_~res~0=7.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=7.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=12, #NULL.offset=5, old(#NULL.base)=12, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~x=11.0] [L18] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L19] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] ~w~0 := #t~mem0; [L20] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L18] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25-L46] assume !(~exponent_less_127~0 < 23); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41-L45] assume 128 == ~exponent_less_127~0; [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L12-L53] ensures true; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] assume !#t~short8; VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79-L82] assume !#t~short8; [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=7.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=12, #NULL.offset=5, old(#NULL.base)=12, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~x=11.0] [L18] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L19] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] ~w~0 := #t~mem0; [L20] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L18] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25-L46] assume !(~exponent_less_127~0 < 23); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41-L45] assume 128 == ~exponent_less_127~0; [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L12-L53] ensures true; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] assume !#t~short8; VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79-L82] assume !#t~short8; [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=7.0, ~x~0=11.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L18] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L19] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] ~w~0 := #t~mem0; [L20] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L18] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41] COND TRUE 128 == ~exponent_less_127~0 [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND TRUE !#t~short8 [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L18] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L19] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] ~w~0 := #t~mem0; [L20] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L18] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41] COND TRUE 128 == ~exponent_less_127~0 [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND TRUE !#t~short8 [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L18] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L19] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] ~w~0 := #t~mem0; [L20] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L18] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41] COND TRUE 128 == ~exponent_less_127~0 [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND TRUE !#t~short8 [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L75] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L76] CALL call #t~ret6 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L12-L53] ~x := #in~x; [L13] havoc ~w~0; [L15] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L18] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L19] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] ~w~0 := #t~mem0; [L20] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L20] havoc #t~union1; [L20] havoc #t~mem0; [L18] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L18] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=9, ~x=11.0] [L23] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L25] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L41] COND TRUE 128 == ~exponent_less_127~0 [L43] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=9, ~x=11.0] [L76] RET call #t~ret6 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=7.0, ~x~0=11.0] [L76] ~res~0 := #t~ret6; [L76] havoc #t~ret6; [L79] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=7.0, ~x~0=11.0] [L79] COND TRUE !#t~short8 [L79] havoc #t~short8; [L79] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [L80] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=7.0, ~x~0=11.0] [L75] float x = -0.0f; [L76] CALL, EXPR round_float(x) VAL [\old(x)=11] [L13] __uint32_t w; [L15] int exponent_less_127; VAL [\old(x)=11, x=11] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L25] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L76] RET, EXPR round_float(x) VAL [round_float(x)=7, x=11] [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=7, res == -0.0f && __signbit_float(res) == 1=0, x=11] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [res=7, x=11] ----- [2018-11-23 16:05:59,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:05:59 BoogieIcfgContainer [2018-11-23 16:05:59,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 16:05:59,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 16:05:59,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 16:05:59,869 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 16:05:59,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:59" (3/4) ... [2018-11-23 16:05:59,873 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 16:05:59,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 16:05:59,874 INFO L168 Benchmark]: Toolchain (without parser) took 733.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -136.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,875 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:05:59,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.04 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.49 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:05:59,876 INFO L168 Benchmark]: Boogie Preprocessor took 55.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -200.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,877 INFO L168 Benchmark]: RCFGBuilder took 187.35 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,877 INFO L168 Benchmark]: TraceAbstraction took 295.32 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,878 INFO L168 Benchmark]: Witness Printer took 4.24 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:59,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.04 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.49 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -200.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.35 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 295.32 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.24 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L76] CALL, EXPR round_float(x) VAL [\old(x)=11] [L13] __uint32_t w; [L15] int exponent_less_127; VAL [\old(x)=11, x=11] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L25] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; VAL [\old(x)=11, exponent_less_127=128, w=9, x=11] [L76] RET, EXPR round_float(x) VAL [round_float(x)=7, x=11] [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=7, res == -0.0f && __signbit_float(res) == 1=0, x=11] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [res=7, x=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=38occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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-aa41828 [2018-11-23 16:06:01,268 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-11-23 16:06:01,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 16:06:01,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 16:06:01,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 16:06:01,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 16:06:01,282 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 16:06:01,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 16:06:01,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 16:06:01,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 16:06:01,284 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 16:06:01,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 16:06:01,285 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 16:06:01,286 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 16:06:01,287 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 16:06:01,288 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 16:06:01,289 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 16:06:01,290 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 16:06:01,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 16:06:01,292 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 16:06:01,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 16:06:01,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 16:06:01,294 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 16:06:01,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 16:06:01,295 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 16:06:01,295 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 16:06:01,296 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 16:06:01,297 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 16:06:01,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 16:06:01,297 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 16:06:01,297 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 16:06:01,298 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 16:06:01,298 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 16:06:01,299 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 16:06:01,299 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 16:06:01,309 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 16:06:01,309 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 16:06:01,310 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 16:06:01,310 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 16:06:01,310 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 16:06:01,311 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 16:06:01,311 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 16:06:01,312 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 16:06:01,313 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 16:06:01,313 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 16:06:01,313 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 16:06:01,313 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 16:06:01,313 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 16:06:01,313 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:06:01,313 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 16:06:01,314 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 16:06:01,314 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_59852845-65f3-42b3-bca6-aeffe0541bf6/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-11-23 16:06:01,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 16:06:01,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 16:06:01,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 16:06:01,356 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 16:06:01,356 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 16:06:01,357 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:06:01,400 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/7ad27ede9/f8d1a707f2264c99a4ca81a36ac78eb6/FLAG0e30339cb [2018-11-23 16:06:01,698 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 16:06:01,699 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:06:01,704 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/7ad27ede9/f8d1a707f2264c99a4ca81a36ac78eb6/FLAG0e30339cb [2018-11-23 16:06:01,712 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/data/7ad27ede9/f8d1a707f2264c99a4ca81a36ac78eb6 [2018-11-23 16:06:01,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 16:06:01,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 16:06:01,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 16:06:01,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 16:06:01,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 16:06:01,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf9fdeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01, skipping insertion in model container [2018-11-23 16:06:01,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 16:06:01,741 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 16:06:01,871 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:06:01,875 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 16:06:01,892 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:06:01,908 INFO L195 MainTranslator]: Completed translation [2018-11-23 16:06:01,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01 WrapperNode [2018-11-23 16:06:01,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 16:06:01,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 16:06:01,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 16:06:01,910 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 16:06:01,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 16:06:01,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 16:06:01,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 16:06:01,926 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 16:06:01,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... [2018-11-23 16:06:01,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 16:06:01,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 16:06:01,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 16:06:01,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 16:06:01,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 16:06:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 16:06:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 16:06:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-23 16:06:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-23 16:06:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 16:06:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 16:06:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 16:06:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 16:06:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 16:06:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 16:06:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 16:06:02,229 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 16:06:02,229 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 16:06:02,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:02 BoogieIcfgContainer [2018-11-23 16:06:02,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 16:06:02,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 16:06:02,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 16:06:02,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 16:06:02,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:01" (1/3) ... [2018-11-23 16:06:02,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21610ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:02, skipping insertion in model container [2018-11-23 16:06:02,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:01" (2/3) ... [2018-11-23 16:06:02,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21610ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:02, skipping insertion in model container [2018-11-23 16:06:02,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:02" (3/3) ... [2018-11-23 16:06:02,236 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-11-23 16:06:02,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 16:06:02,249 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 16:06:02,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 16:06:02,282 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 16:06:02,282 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 16:06:02,282 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 16:06:02,282 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 16:06:02,282 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 16:06:02,283 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 16:06:02,283 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 16:06:02,283 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 16:06:02,283 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 16:06:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-23 16:06:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 16:06:02,298 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:02,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:02,300 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:02,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:02,303 INFO L82 PathProgramCache]: Analyzing trace with hash 564888569, now seen corresponding path program 1 times [2018-11-23 16:06:02,305 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:02,306 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:02,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:02,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:02,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:02,371 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:02,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:02,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 16:06:02,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 16:06:02,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 16:06:02,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:06:02,390 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-23 16:06:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:02,403 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-23 16:06:02,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 16:06:02,404 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 16:06:02,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:02,409 INFO L225 Difference]: With dead ends: 68 [2018-11-23 16:06:02,409 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 16:06:02,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:06:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 16:06:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-23 16:06:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 16:06:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-23 16:06:02,439 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-23 16:06:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:02,440 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-23 16:06:02,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 16:06:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-23 16:06:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 16:06:02,440 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:02,441 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:02,441 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:02,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1333163618, now seen corresponding path program 1 times [2018-11-23 16:06:02,442 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:02,442 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:02,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:02,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:02,600 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:02,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:02,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 16:06:02,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 16:06:02,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 16:06:02,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 16:06:02,611 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-11-23 16:06:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:02,943 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-11-23 16:06:02,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 16:06:02,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-23 16:06:02,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:02,946 INFO L225 Difference]: With dead ends: 51 [2018-11-23 16:06:02,946 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 16:06:02,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-23 16:06:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 16:06:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 16:06:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 16:06:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-23 16:06:02,952 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2018-11-23 16:06:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:02,952 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-23 16:06:02,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 16:06:02,952 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-23 16:06:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 16:06:02,953 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:02,953 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:02,953 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:02,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:02,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1215677854, now seen corresponding path program 1 times [2018-11-23 16:06:02,954 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:02,954 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:02,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:02,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:03,109 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:03,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:03,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 16:06:03,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 16:06:03,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 16:06:03,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 16:06:03,117 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2018-11-23 16:06:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:03,390 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-11-23 16:06:03,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 16:06:03,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-23 16:06:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:03,392 INFO L225 Difference]: With dead ends: 53 [2018-11-23 16:06:03,392 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 16:06:03,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-23 16:06:03,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 16:06:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 16:06:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 16:06:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-23 16:06:03,396 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 20 [2018-11-23 16:06:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:03,397 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-23 16:06:03,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 16:06:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-23 16:06:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 16:06:03,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:03,398 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:03,398 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:03,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash 734742422, now seen corresponding path program 1 times [2018-11-23 16:06:03,399 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:03,399 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:03,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:03,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:03,500 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:03,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:03,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 16:06:03,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 16:06:03,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 16:06:03,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 16:06:03,508 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 7 states. [2018-11-23 16:06:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:03,665 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-11-23 16:06:03,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 16:06:03,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-23 16:06:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:03,666 INFO L225 Difference]: With dead ends: 50 [2018-11-23 16:06:03,666 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 16:06:03,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-23 16:06:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 16:06:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 16:06:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 16:06:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-23 16:06:03,669 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-11-23 16:06:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:03,669 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-23 16:06:03,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 16:06:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-23 16:06:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 16:06:03,670 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:03,670 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:03,670 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:03,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:03,670 INFO L82 PathProgramCache]: Analyzing trace with hash 341715412, now seen corresponding path program 1 times [2018-11-23 16:06:03,671 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:03,671 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/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 [2018-11-23 16:06:03,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:03,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:03,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:03,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:03,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 16:06:03,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 16:06:03,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 16:06:03,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 16:06:03,758 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-11-23 16:06:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:03,824 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-11-23 16:06:03,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 16:06:03,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-23 16:06:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:03,825 INFO L225 Difference]: With dead ends: 35 [2018-11-23 16:06:03,826 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 16:06:03,826 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 16:06:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 16:06:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 16:06:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 16:06:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-23 16:06:03,828 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 23 [2018-11-23 16:06:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:03,829 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-23 16:06:03,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 16:06:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-23 16:06:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 16:06:03,829 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:06:03,829 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:06:03,829 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:06:03,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:06:03,830 INFO L82 PathProgramCache]: Analyzing trace with hash 841303647, now seen corresponding path program 1 times [2018-11-23 16:06:03,830 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 16:06:03,830 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-23 16:06:03,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:06:03,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:06:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:04,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:04,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:04,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-23 16:06:04,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 16:06:04,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 16:06:04,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-23 16:06:04,140 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 15 states. [2018-11-23 16:06:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:06:04,672 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-23 16:06:04,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 16:06:04,672 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-11-23 16:06:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:06:04,672 INFO L225 Difference]: With dead ends: 32 [2018-11-23 16:06:04,673 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 16:06:04,673 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-11-23 16:06:04,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 16:06:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 16:06:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 16:06:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 16:06:04,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-23 16:06:04,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:06:04,674 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 16:06:04,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 16:06:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 16:06:04,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 16:06:04,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 16:06:04,732 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 16:06:04,732 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 16:06:04,733 INFO L451 ceAbstractionStarter]: At program point round_floatENTRY(lines 12 53) the Hoare annotation is: true [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-23 16:06:04,733 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-11-23 16:06:04,733 INFO L448 ceAbstractionStarter]: For program point round_floatFINAL(lines 12 53) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point round_floatEXIT(lines 12 53) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2018-11-23 16:06:04,734 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 16:06:04,735 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 16:06:04,735 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 16:06:04,735 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 16:06:04,735 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 67 85) the Hoare annotation is: true [2018-11-23 16:06:04,735 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 67 85) no Hoare annotation was computed. [2018-11-23 16:06:04,735 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-23 16:06:04,735 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L444 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (and |main_#t~short8| (exists ((v_round_float_~w~0_14 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v_round_float_~w~0_14) ((_ extract 30 23) v_round_float_~w~0_14) ((_ extract 22 0) v_round_float_~w~0_14)) (fp.neg (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483648 32) v_round_float_~w~0_14))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 67 85) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-23 16:06:04,736 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2018-11-23 16:06:04,737 INFO L444 ceAbstractionStarter]: At program point L58-2(lines 58 62) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-23 16:06:04,737 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 55 65) no Hoare annotation was computed. [2018-11-23 16:06:04,737 INFO L448 ceAbstractionStarter]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2018-11-23 16:06:04,737 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 55 65) the Hoare annotation is: true [2018-11-23 16:06:04,737 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 55 65) no Hoare annotation was computed. [2018-11-23 16:06:04,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:06:04 BoogieIcfgContainer [2018-11-23 16:06:04,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 16:06:04,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 16:06:04,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 16:06:04,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 16:06:04,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:02" (3/4) ... [2018-11-23 16:06:04,749 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 16:06:04,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 16:06:04,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-23 16:06:04,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 16:06:04,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-23 16:06:04,757 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-23 16:06:04,757 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 16:06:04,757 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 16:06:04,776 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-23 16:06:04,776 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 16:06:04,794 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_59852845-65f3-42b3-bca6-aeffe0541bf6/bin-2019/uautomizer/witness.graphml [2018-11-23 16:06:04,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 16:06:04,795 INFO L168 Benchmark]: Toolchain (without parser) took 3080.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 950.8 MB in the beginning and 863.2 MB in the end (delta: 87.6 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. [2018-11-23 16:06:04,796 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:06:04,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.84 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-23 16:06:04,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.70 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:06:04,797 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:06:04,797 INFO L168 Benchmark]: RCFGBuilder took 282.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-23 16:06:04,798 INFO L168 Benchmark]: TraceAbstraction took 2515.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.2 MB in the end (delta: 259.9 MB). Peak memory consumption was 259.9 MB. Max. memory is 11.5 GB. [2018-11-23 16:06:04,798 INFO L168 Benchmark]: Witness Printer took 48.34 ms. Allocated memory is still 1.2 GB. Free memory is still 863.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:06:04,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.84 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.70 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 282.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2515.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.2 MB in the end (delta: 259.9 MB). Peak memory consumption was 259.9 MB. Max. memory is 11.5 GB. * Witness Printer took 48.34 ms. Allocated memory is still 1.2 GB. Free memory is still 863.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 124 SDslu, 630 SDs, 0 SdLazy, 310 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 128 ConstructedInterpolants, 35 QuantifiedInterpolants, 22889 SizeOfPredicates, 23 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...