./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c ............................................................................................................................................................................................................................................................................................................. 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_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:27:11,795 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:27:11,796 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:27:11,806 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:27:11,810 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:27:11,811 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:27:11,812 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:27:11,813 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:27:11,814 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:27:11,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:27:11,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:27:11,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:27:11,817 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:27:11,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:27:11,819 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:27:11,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:27:11,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:27:11,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:27:11,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:27:11,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:27:11,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:27:11,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:27:11,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:27:11,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:27:11,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:27:11,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:27:11,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:27:11,832 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:27:11,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:27:11,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:27:11,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:27:11,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:27:11,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:27:11,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:27:11,837 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:27:11,837 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:27:11,837 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-27 00:27:11,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:27:11,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:27:11,850 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:27:11,850 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:27:11,850 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:27:11,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:27:11,851 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:27:11,851 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:27:11,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:27:11,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:27:11,852 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:27:11,852 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:27:11,852 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:27:11,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:27:11,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:27:11,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:27:11,853 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:27:11,853 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:27:11,853 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:11,854 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:27:11,854 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:27:11,855 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 00:27:11,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:27:11,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:27:11,857 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_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-10-27 00:27:11,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:27:11,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:27:11,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:27:11,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:27:11,899 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:27:11,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:11,946 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/384371a85/2fe192178065487e9391b48586260937/FLAG10181f940 [2018-10-27 00:27:12,304 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:27:12,304 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:12,310 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/384371a85/2fe192178065487e9391b48586260937/FLAG10181f940 [2018-10-27 00:27:12,322 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/384371a85/2fe192178065487e9391b48586260937 [2018-10-27 00:27:12,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:27:12,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:27:12,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:12,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:27:12,332 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:27:12,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29248f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12, skipping insertion in model container [2018-10-27 00:27:12,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:27:12,367 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:27:12,513 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:12,516 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:27:12,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:12,562 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:27:12,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12 WrapperNode [2018-10-27 00:27:12,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:12,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:27:12,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:27:12,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:27:12,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... [2018-10-27 00:27:12,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:27:12,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:27:12,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:27:12,606 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:27:12,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 [2018-10-27 00:27:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:27:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:27:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:27:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-27 00:27:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:27:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-27 00:27:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-10-27 00:27:13,313 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:27:13,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:13 BoogieIcfgContainer [2018-10-27 00:27:13,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:27:13,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:27:13,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:27:13,316 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:27:13,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:27:12" (1/3) ... [2018-10-27 00:27:13,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6000e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:13, skipping insertion in model container [2018-10-27 00:27:13,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:12" (2/3) ... [2018-10-27 00:27:13,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6000e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:13, skipping insertion in model container [2018-10-27 00:27:13,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:13" (3/3) ... [2018-10-27 00:27:13,319 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:13,325 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:27:13,331 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:27:13,343 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:27:13,370 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:27:13,371 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:27:13,371 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:27:13,371 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:27:13,371 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:27:13,371 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:27:13,371 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:27:13,371 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:27:13,372 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:27:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-10-27 00:27:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-27 00:27:13,395 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:13,396 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:13,398 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:13,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:13,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-10-27 00:27:13,405 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:27:13,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:27:13,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:13,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:13,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:13,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:13,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:27:13,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:27:13,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:27:13,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:13,526 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-10-27 00:27:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:13,553 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-10-27 00:27:13,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:27:13,554 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-27 00:27:13,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:13,563 INFO L225 Difference]: With dead ends: 144 [2018-10-27 00:27:13,563 INFO L226 Difference]: Without dead ends: 72 [2018-10-27 00:27:13,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-10-27 00:27:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-10-27 00:27:13,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-10-27 00:27:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-10-27 00:27:13,605 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-10-27 00:27:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:13,606 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-10-27 00:27:13,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:27:13,606 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-10-27 00:27:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:27:13,607 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:13,607 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:13,607 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:13,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:13,608 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-10-27 00:27:13,608 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:27:13,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:27:13,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:13,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:13,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:27:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:27:13,683 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:27:13,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:27:13 BoogieIcfgContainer [2018-10-27 00:27:13,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:27:13,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:27:13,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:27:13,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:27:13,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:13" (3/4) ... [2018-10-27 00:27:13,723 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:27:13,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:27:13,724 INFO L168 Benchmark]: Toolchain (without parser) took 1398.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:13,727 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:27:13,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 941.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:13,729 INFO L168 Benchmark]: Boogie Preprocessor took 42.85 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:13,730 INFO L168 Benchmark]: RCFGBuilder took 707.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:13,732 INFO L168 Benchmark]: TraceAbstraction took 402.77 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:13,733 INFO L168 Benchmark]: Witness Printer took 6.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:27:13,735 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 941.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.85 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 707.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 402.77 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someUnaryFLOAToperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450950, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = -0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L20] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450948, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L21] FCALL gf_u.value = (x) VAL [\old(x)=6442450948, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L22] EXPR, FCALL gf_u.word VAL [\old(x)=6442450948, gf_u={6442450946:0}, gf_u.word=6442450944, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L22] (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450952, \old(x)=6442450948, gf_u={6442450946:0}, gf_u.word=6442450944, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L23] COND FALSE !(0) VAL [\old(x)=6442450948, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L24] hx = ix & 0x7fffffff VAL [\old(x)=6442450948, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] RET return x * x + x; VAL [\old(x)=6442450948, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450949, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=6442450949, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 87 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=76occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:27:15,673 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:27:15,674 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:27:15,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:27:15,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:27:15,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:27:15,686 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:27:15,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:27:15,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:27:15,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:27:15,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:27:15,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:27:15,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:27:15,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:27:15,694 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:27:15,694 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:27:15,695 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:27:15,697 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:27:15,698 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:27:15,700 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:27:15,701 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:27:15,702 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:27:15,704 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:27:15,704 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:27:15,705 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:27:15,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:27:15,706 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:27:15,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:27:15,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:27:15,709 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:27:15,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:27:15,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:27:15,710 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:27:15,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:27:15,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:27:15,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:27:15,712 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-27 00:27:15,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:27:15,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:27:15,724 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:27:15,724 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:27:15,725 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:27:15,725 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:27:15,725 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:27:15,725 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:27:15,725 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:27:15,726 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:27:15,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:27:15,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:27:15,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:27:15,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:27:15,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:27:15,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:27:15,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:15,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:27:15,730 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:27:15,731 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_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-10-27 00:27:15,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:27:15,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:27:15,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:27:15,791 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:27:15,791 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:27:15,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:15,838 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/7eb1d20aa/4299ec881e9a415fb7296765cbb0d1be/FLAGb7ecc0da3 [2018-10-27 00:27:16,277 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:27:16,277 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:16,288 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/7eb1d20aa/4299ec881e9a415fb7296765cbb0d1be/FLAGb7ecc0da3 [2018-10-27 00:27:16,301 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/data/7eb1d20aa/4299ec881e9a415fb7296765cbb0d1be [2018-10-27 00:27:16,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:27:16,304 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:27:16,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:16,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:27:16,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:27:16,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5356465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16, skipping insertion in model container [2018-10-27 00:27:16,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:27:16,341 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:27:16,512 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:16,518 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:27:16,548 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:16,570 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:27:16,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16 WrapperNode [2018-10-27 00:27:16,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:16,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:27:16,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:27:16,572 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:27:16,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... [2018-10-27 00:27:16,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:27:16,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:27:16,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:27:16,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:27:16,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 [2018-10-27 00:27:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:27:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:27:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:27:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-27 00:27:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:27:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:27:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-10-27 00:27:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-10-27 00:27:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-10-27 00:27:17,226 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:17,240 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:17,721 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:17,734 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:17,745 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:27:17,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:17 BoogieIcfgContainer [2018-10-27 00:27:17,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:27:17,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:27:17,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:27:17,749 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:27:17,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:27:16" (1/3) ... [2018-10-27 00:27:17,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b288a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:17, skipping insertion in model container [2018-10-27 00:27:17,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:16" (2/3) ... [2018-10-27 00:27:17,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b288a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:17, skipping insertion in model container [2018-10-27 00:27:17,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:17" (3/3) ... [2018-10-27 00:27:17,752 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-10-27 00:27:17,760 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:27:17,769 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:27:17,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:27:17,816 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:27:17,816 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:27:17,816 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:27:17,816 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:27:17,816 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:27:17,816 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:27:17,817 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:27:17,817 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:27:17,817 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:27:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-10-27 00:27:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-27 00:27:17,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:17,844 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:17,846 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:17,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:17,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-10-27 00:27:17,854 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:17,855 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 [2018-10-27 00:27:17,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:17,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:17,988 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:17,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:17,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:27:18,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:27:18,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:27:18,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:18,014 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-10-27 00:27:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:18,039 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-10-27 00:27:18,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:27:18,040 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-27 00:27:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:18,049 INFO L225 Difference]: With dead ends: 144 [2018-10-27 00:27:18,049 INFO L226 Difference]: Without dead ends: 72 [2018-10-27 00:27:18,052 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-10-27 00:27:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-10-27 00:27:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-10-27 00:27:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-10-27 00:27:18,088 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-10-27 00:27:18,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:18,089 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-10-27 00:27:18,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:27:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-10-27 00:27:18,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:27:18,090 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:18,090 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:18,090 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:18,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:18,091 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-10-27 00:27:18,091 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:18,091 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:27:18,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:18,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:18,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:27:18,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:27:18,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,430 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-27 00:27:18,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:27:18,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-27 00:27:18,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,568 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:18,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-27 00:27:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:18,788 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:18,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:18,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 00:27:18,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:27:18,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:27:18,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:27:18,798 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand 9 states. [2018-10-27 00:27:19,293 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-27 00:27:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:20,567 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2018-10-27 00:27:20,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 00:27:20,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-10-27 00:27:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:20,571 INFO L225 Difference]: With dead ends: 101 [2018-10-27 00:27:20,571 INFO L226 Difference]: Without dead ends: 78 [2018-10-27 00:27:20,572 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-10-27 00:27:20,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-10-27 00:27:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2018-10-27 00:27:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-10-27 00:27:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-10-27 00:27:20,582 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 26 [2018-10-27 00:27:20,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:20,582 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-10-27 00:27:20,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:27:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-10-27 00:27:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 00:27:20,583 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:20,584 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:20,584 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:20,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:20,584 INFO L82 PathProgramCache]: Analyzing trace with hash -571672782, now seen corresponding path program 1 times [2018-10-27 00:27:20,585 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:20,585 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:27:20,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:20,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:20,700 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:20,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:20,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:27:20,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:27:20,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:27:20,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:27:20,717 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2018-10-27 00:27:21,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:21,210 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-10-27 00:27:21,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:27:21,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-10-27 00:27:21,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:21,212 INFO L225 Difference]: With dead ends: 79 [2018-10-27 00:27:21,212 INFO L226 Difference]: Without dead ends: 76 [2018-10-27 00:27:21,212 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:27:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-27 00:27:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-10-27 00:27:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-10-27 00:27:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-10-27 00:27:21,221 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 27 [2018-10-27 00:27:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:21,221 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-10-27 00:27:21,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:27:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-10-27 00:27:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-27 00:27:21,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:21,222 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:21,222 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:21,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash 569138537, now seen corresponding path program 1 times [2018-10-27 00:27:21,223 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:21,223 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 [2018-10-27 00:27:21,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:21,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:21,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:27:21,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:27:21,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,462 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,469 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-27 00:27:21,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:27:21,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-27 00:27:21,487 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:21,492 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-27 00:27:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:21,614 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:21,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:21,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 00:27:21,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:27:21,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:27:21,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:27:21,625 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 9 states. [2018-10-27 00:27:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:22,652 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2018-10-27 00:27:22,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 00:27:22,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-10-27 00:27:22,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:22,654 INFO L225 Difference]: With dead ends: 101 [2018-10-27 00:27:22,654 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:27:22,655 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-10-27 00:27:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:27:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-27 00:27:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 00:27:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2018-10-27 00:27:22,659 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 28 [2018-10-27 00:27:22,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:22,660 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2018-10-27 00:27:22,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:27:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2018-10-27 00:27:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 00:27:22,662 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:22,662 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:22,662 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:22,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:22,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1994779156, now seen corresponding path program 1 times [2018-10-27 00:27:22,663 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:22,663 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/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 [2018-10-27 00:27:22,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:22,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:22,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:27:22,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:27:22,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,863 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,870 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-27 00:27:22,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:27:22,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-27 00:27:22,917 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:22,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-27 00:27:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:23,068 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:23,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:23,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-10-27 00:27:23,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 00:27:23,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 00:27:23,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-10-27 00:27:23,076 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 14 states. [2018-10-27 00:27:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:23,648 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-10-27 00:27:23,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 00:27:23,648 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-10-27 00:27:23,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:23,649 INFO L225 Difference]: With dead ends: 44 [2018-10-27 00:27:23,649 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:27:23,649 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-10-27 00:27:23,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:27:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:27:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:27:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:27:23,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-10-27 00:27:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:23,650 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:27:23,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-27 00:27:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:27:23,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:27:23,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:27:23,881 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:27:23,882 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:27:23,882 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:27:23,882 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:27:23,882 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:27:23,882 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:27:23,882 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-10-27 00:27:23,883 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L425 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-10-27 00:27:23,883 INFO L421 ceAbstractionStarter]: At program point L105-1(line 105) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= main_~res~0 .cse0) |main_#t~short9| (= main_~x~0 .cse0))) [2018-10-27 00:27:23,884 INFO L425 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-10-27 00:27:23,884 INFO L421 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-10-27 00:27:23,884 INFO L425 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-10-27 00:27:23,884 INFO L425 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-10-27 00:27:23,884 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-10-27 00:27:23,884 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-10-27 00:27:23,885 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-10-27 00:27:23,885 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-10-27 00:27:23,885 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-10-27 00:27:23,885 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-10-27 00:27:23,885 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-10-27 00:27:23,885 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L421 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-10-27 00:27:23,886 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-10-27 00:27:23,887 INFO L425 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L421 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-10-27 00:27:23,888 INFO L425 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-10-27 00:27:23,889 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L76-2(line 76) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-10-27 00:27:23,890 INFO L425 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-10-27 00:27:23,891 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-10-27 00:27:23,892 INFO L425 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-10-27 00:27:23,892 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-10-27 00:27:23,892 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-10-27 00:27:23,892 INFO L425 ceAbstractionStarter]: For program point L84-4(lines 84 88) no Hoare annotation was computed. [2018-10-27 00:27:23,892 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-10-27 00:27:23,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,913 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,913 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,913 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,914 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,914 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,914 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,914 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,914 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,915 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,915 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,916 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,916 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,916 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,916 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,917 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,917 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,917 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,918 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,918 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,918 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,918 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,919 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,919 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,919 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:23,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:27:23 BoogieIcfgContainer [2018-10-27 00:27:23,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:27:23,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:27:23,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:27:23,923 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:27:23,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:17" (3/4) ... [2018-10-27 00:27:23,927 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:27:23,935 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:27:23,935 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:27:23,935 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-10-27 00:27:23,936 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-27 00:27:23,941 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-27 00:27:23,942 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-27 00:27:23,942 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:27:23,968 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-27 00:27:23,968 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-27 00:27:23,969 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-10-27 00:27:23,969 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-10-27 00:27:23,969 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-10-27 00:27:24,001 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0e5412b3-9b9e-42ac-9b40-c0cf62938b3d/bin-2019/uautomizer/witness.graphml [2018-10-27 00:27:24,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:27:24,002 INFO L168 Benchmark]: Toolchain (without parser) took 7698.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.6 MB in the beginning and 828.3 MB in the end (delta: 126.3 MB). Peak memory consumption was 269.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:24,003 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-27 00:27:24,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.87 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:24,004 INFO L168 Benchmark]: Boogie Preprocessor took 43.28 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:27:24,004 INFO L168 Benchmark]: RCFGBuilder took 1130.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:24,005 INFO L168 Benchmark]: TraceAbstraction took 6175.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.9 MB in the end (delta: 275.6 MB). Peak memory consumption was 275.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:24,005 INFO L168 Benchmark]: Witness Printer took 79.14 ms. Allocated memory is still 1.2 GB. Free memory was 834.9 MB in the beginning and 828.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:24,016 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 265.87 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.28 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1130.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6175.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.9 MB in the end (delta: 275.6 MB). Peak memory consumption was 275.6 MB. Max. memory is 11.5 GB. * Witness Printer took 79.14 ms. Allocated memory is still 1.2 GB. Free memory was 834.9 MB in the beginning and 828.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 36]: Loop Invariant [2018-10-27 00:27:24,022 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,022 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,022 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,022 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,023 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,023 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,023 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,023 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,024 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,024 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,024 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,024 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,024 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,025 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,025 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,025 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 50]: Loop Invariant [2018-10-27 00:27:24,025 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,026 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,026 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,026 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,026 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,026 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,027 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,027 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,027 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,027 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,028 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 73]: Loop Invariant [2018-10-27 00:27:24,029 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,029 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,029 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,030 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,030 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,030 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,030 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,030 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,031 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,031 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,031 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,031 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:27:24,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 324 SDtfs, 348 SDslu, 1286 SDs, 0 SdLazy, 401 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 137 HoareAnnotationTreeSize, 19 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 136 ConstructedInterpolants, 10 QuantifiedInterpolants, 21675 SizeOfPredicates, 29 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...