./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_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_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2da48247b776e6180d2b605d662157645a3da524 ..................................................................................................................................................................................................................................................................................................................................................................................................... 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_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2da48247b776e6180d2b605d662157645a3da524 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:44:20,145 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:44:20,146 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:44:20,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:44:20,154 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:44:20,154 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:44:20,155 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:44:20,156 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:44:20,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:44:20,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:44:20,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:44:20,159 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:44:20,159 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:44:20,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:44:20,160 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:44:20,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:44:20,161 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:44:20,162 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:44:20,163 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:44:20,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:44:20,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:44:20,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:44:20,167 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:44:20,167 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:44:20,167 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:44:20,168 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:44:20,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:44:20,169 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:44:20,170 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:44:20,170 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:44:20,170 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:44:20,171 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:44:20,171 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:44:20,171 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:44:20,172 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:44:20,172 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:44:20,173 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 10:44:20,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:44:20,181 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:44:20,181 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:44:20,181 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:44:20,181 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:44:20,182 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:44:20,182 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:44:20,182 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:44:20,182 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:44:20,182 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:44:20,182 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:44:20,183 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:44:20,183 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:44:20,183 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:44:20,183 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:44:20,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:44:20,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:44:20,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:44:20,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:44:20,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:44:20,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:44:20,186 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:44:20,186 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan 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 -> Taipan 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 -> 2da48247b776e6180d2b605d662157645a3da524 [2018-11-10 10:44:20,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:44:20,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:44:20,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:44:20,223 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:44:20,224 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:44:20,224 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:20,267 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/34e8d1cad/af617b751fe0482f87345c863940c533/FLAG66dffe967 [2018-11-10 10:44:20,576 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:44:20,577 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:20,584 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/34e8d1cad/af617b751fe0482f87345c863940c533/FLAG66dffe967 [2018-11-10 10:44:20,592 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/34e8d1cad/af617b751fe0482f87345c863940c533 [2018-11-10 10:44:20,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:44:20,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:44:20,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:44:20,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:44:20,599 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:44:20,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbc8502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20, skipping insertion in model container [2018-11-10 10:44:20,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:44:20,632 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:44:20,767 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:44:20,769 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:44:20,796 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:44:20,808 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:44:20,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20 WrapperNode [2018-11-10 10:44:20,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:44:20,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:44:20,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:44:20,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:44:20,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:44:20,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:44:20,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:44:20,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:44:20,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... [2018-11-10 10:44:20,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:44:20,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:44:20,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:44:20,909 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:44:20,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:44:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 10:44:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 10:44:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:44:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:44:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:44:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:44:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:44:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:44:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:44:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:44:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:44:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:44:21,290 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:44:21,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:21 BoogieIcfgContainer [2018-11-10 10:44:21,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:44:21,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:44:21,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:44:21,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:44:21,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:44:20" (1/3) ... [2018-11-10 10:44:21,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d2749f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:44:21, skipping insertion in model container [2018-11-10 10:44:21,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:20" (2/3) ... [2018-11-10 10:44:21,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d2749f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:44:21, skipping insertion in model container [2018-11-10 10:44:21,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:21" (3/3) ... [2018-11-10 10:44:21,296 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:21,303 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:44:21,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:44:21,322 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:44:21,343 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:44:21,343 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:44:21,343 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:44:21,343 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:44:21,343 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:44:21,343 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:44:21,343 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:44:21,343 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:44:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-11-10 10:44:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:44:21,363 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:21,363 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:21,365 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:21,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:21,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1304649765, now seen corresponding path program 1 times [2018-11-10 10:44:21,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:44:21,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:44:21,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:21,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:44:21,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:44:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:44:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:44:21,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:44:21,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:44:21,482 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:44:21,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:44:21,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:44:21,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:44:21,498 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-11-10 10:44:21,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:44:21,515 INFO L93 Difference]: Finished difference Result 130 states and 192 transitions. [2018-11-10 10:44:21,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:44:21,516 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 10:44:21,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:44:21,522 INFO L225 Difference]: With dead ends: 130 [2018-11-10 10:44:21,522 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 10:44:21,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:44:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 10:44:21,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 10:44:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 10:44:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2018-11-10 10:44:21,550 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 22 [2018-11-10 10:44:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:44:21,551 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2018-11-10 10:44:21,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:44:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-11-10 10:44:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 10:44:21,552 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:21,553 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:21,553 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:21,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:21,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1275521735, now seen corresponding path program 1 times [2018-11-10 10:44:21,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:44:21,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:44:21,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:21,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:44:21,555 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:44:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:44:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:44:21,633 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:44:21,643 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,644 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,644 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,644 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,644 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,644 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,645 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,645 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,645 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,645 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,645 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,646 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,646 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,646 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,646 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,646 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,647 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,647 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,647 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,647 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,648 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,648 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,648 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:44:21,648 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:44:21,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:44:21 BoogieIcfgContainer [2018-11-10 10:44:21,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:44:21,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:44:21,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:44:21,668 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:44:21,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:21" (3/4) ... [2018-11-10 10:44:21,671 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 10:44:21,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:44:21,671 INFO L168 Benchmark]: Toolchain (without parser) took 1076.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -105.6 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,672 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:44:21,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 942.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -196.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,673 INFO L168 Benchmark]: Boogie Preprocessor took 30.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,674 INFO L168 Benchmark]: RCFGBuilder took 381.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,674 INFO L168 Benchmark]: TraceAbstraction took 376.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:44:21,674 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:44:21,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 213.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 942.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -196.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 381.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 376.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 173]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 168. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450959, \old(one_sqrt)=6442450950, \old(pi)=6442450949, \old(pi)=6442450952, \old(pi)=6442450963, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450960, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450947, \old(pS4_acos)=6442450951, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450946, \old(qS2_acos)=6442450953, \old(qS3_acos)=6442450956, \old(qS4_acos)=6442450948, \old(tiny_sqrt)=6442450958, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L168] float x = -1.0f / 0.0f; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] CALL, EXPR __ieee754_acosf(x) VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L97] CALL ieee_float_shape_type gf_u; [L97] RET ieee_float_shape_type gf_u; [L98] CALL gf_u.value = (x) [L98] RET gf_u.value = (x) [L99] CALL, EXPR gf_u.word [L99] RET, EXPR gf_u.word [L99] (hx) = gf_u.word [L99] RET (hx) = gf_u.word [L100] COND FALSE !(0) VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L103] COND TRUE hx > 0 [L104] RET return 0.0; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450954] [L169] float res = __ieee754_acosf(x); [L172] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L172] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450954] [L172] COND TRUE !isnan_float(res) [L173] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450954] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 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=69occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:44:23,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:44:23,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:44:23,122 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:44:23,122 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:44:23,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:44:23,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:44:23,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:44:23,126 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:44:23,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:44:23,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:44:23,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:44:23,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:44:23,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:44:23,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:44:23,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:44:23,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:44:23,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:44:23,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:44:23,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:44:23,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:44:23,136 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:44:23,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:44:23,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:44:23,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:44:23,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:44:23,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:44:23,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:44:23,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:44:23,142 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:44:23,142 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:44:23,142 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:44:23,142 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:44:23,143 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:44:23,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:44:23,144 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:44:23,144 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 10:44:23,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:44:23,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:44:23,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:44:23,156 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:44:23,156 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:44:23,156 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:44:23,156 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:44:23,157 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:44:23,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:44:23,157 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:44:23,157 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:44:23,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:44:23,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:44:23,159 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:44:23,159 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:44:23,159 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:44:23,159 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:44:23,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:44:23,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 10:44:23,160 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 10:44:23,160 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_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan 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 -> Taipan 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 -> 2da48247b776e6180d2b605d662157645a3da524 [2018-11-10 10:44:23,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:44:23,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:44:23,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:44:23,203 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:44:23,204 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:44:23,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:23,249 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/b978f362d/addf4297916e4ef3b3d865b579654ea5/FLAG2a7d16c3d [2018-11-10 10:44:23,576 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:44:23,576 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:23,580 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/b978f362d/addf4297916e4ef3b3d865b579654ea5/FLAG2a7d16c3d [2018-11-10 10:44:23,589 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/data/b978f362d/addf4297916e4ef3b3d865b579654ea5 [2018-11-10 10:44:23,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:44:23,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:44:23,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:44:23,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:44:23,595 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:44:23,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de11074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23, skipping insertion in model container [2018-11-10 10:44:23,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:44:23,621 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:44:23,762 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:44:23,767 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:44:23,803 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:44:23,821 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:44:23,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23 WrapperNode [2018-11-10 10:44:23,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:44:23,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:44:23,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:44:23,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:44:23,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:44:23,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:44:23,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:44:23,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:44:23,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... [2018-11-10 10:44:23,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:44:23,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:44:23,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:44:23,897 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:44:23,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:44:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 10:44:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 10:44:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:44:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:44:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:44:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:44:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:44:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:44:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:44:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:44:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:44:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:44:24,109 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:44:33,119 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:44:33,215 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:44:33,647 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:44:33,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:33 BoogieIcfgContainer [2018-11-10 10:44:33,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:44:33,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:44:33,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:44:33,650 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:44:33,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:44:23" (1/3) ... [2018-11-10 10:44:33,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88b4ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:44:33, skipping insertion in model container [2018-11-10 10:44:33,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:44:23" (2/3) ... [2018-11-10 10:44:33,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88b4ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:44:33, skipping insertion in model container [2018-11-10 10:44:33,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:33" (3/3) ... [2018-11-10 10:44:33,652 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-11-10 10:44:33,658 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:44:33,663 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:44:33,671 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:44:33,691 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:44:33,691 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:44:33,692 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:44:33,692 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:44:33,692 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:44:33,692 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:44:33,692 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:44:33,692 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:44:33,692 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:44:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-11-10 10:44:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 10:44:33,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:33,708 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:33,710 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:33,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:33,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1172095667, now seen corresponding path program 1 times [2018-11-10 10:44:33,716 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:44:33,716 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 10:44:33,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:44:33,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:44:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:44:33,797 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:44:33,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:44:33,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:44:33,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:44:33,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:44:33,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:44:33,818 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-11-10 10:44:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:44:33,837 INFO L93 Difference]: Finished difference Result 128 states and 190 transitions. [2018-11-10 10:44:33,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:44:33,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 10:44:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:44:33,844 INFO L225 Difference]: With dead ends: 128 [2018-11-10 10:44:33,844 INFO L226 Difference]: Without dead ends: 64 [2018-11-10 10:44:33,847 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:44:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-10 10:44:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-10 10:44:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-10 10:44:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2018-11-10 10:44:33,876 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 21 [2018-11-10 10:44:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:44:33,876 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2018-11-10 10:44:33,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:44:33,876 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-11-10 10:44:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:44:33,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:33,877 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:33,878 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:33,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:33,878 INFO L82 PathProgramCache]: Analyzing trace with hash 858724847, now seen corresponding path program 1 times [2018-11-10 10:44:33,878 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:44:33,879 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 10:44:33,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:44:33,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:44:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:44:34,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:44:34,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:44:34,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:44:34,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:44:34,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:44:34,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:44:34,078 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand 7 states. [2018-11-10 10:44:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:44:39,687 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-10 10:44:39,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 10:44:39,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-10 10:44:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:44:39,690 INFO L225 Difference]: With dead ends: 76 [2018-11-10 10:44:39,690 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 10:44:39,691 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 10:44:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 10:44:39,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-11-10 10:44:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-10 10:44:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2018-11-10 10:44:39,699 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 22 [2018-11-10 10:44:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:44:39,699 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2018-11-10 10:44:39,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:44:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2018-11-10 10:44:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:44:39,700 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:39,700 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:39,701 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:39,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:39,701 INFO L82 PathProgramCache]: Analyzing trace with hash -518664881, now seen corresponding path program 1 times [2018-11-10 10:44:39,701 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:44:39,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 10:44:39,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:44:39,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:44:41,754 WARN L179 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-10 10:44:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:44:43,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:44:43,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:44:43,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 10:44:43,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 10:44:43,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 10:44:43,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 10:44:43,774 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand 9 states. [2018-11-10 10:44:46,991 WARN L179 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-10 10:44:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:44:59,885 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2018-11-10 10:44:59,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 10:44:59,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-10 10:44:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:44:59,887 INFO L225 Difference]: With dead ends: 72 [2018-11-10 10:44:59,887 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 10:44:59,887 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 10:44:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 10:44:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-11-10 10:44:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-10 10:44:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2018-11-10 10:44:59,894 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 22 [2018-11-10 10:44:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:44:59,895 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2018-11-10 10:44:59,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 10:44:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2018-11-10 10:44:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 10:44:59,896 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:44:59,896 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:44:59,896 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:44:59,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:44:59,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1070215275, now seen corresponding path program 1 times [2018-11-10 10:44:59,896 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:44:59,897 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 10:44:59,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:44:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:44:59,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:45:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:45:00,050 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:45:00,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:45:00,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:45:00,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:45:00,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:45:00,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:45:00,063 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand 7 states. [2018-11-10 10:45:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:45:05,387 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2018-11-10 10:45:05,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 10:45:05,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-10 10:45:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:45:05,394 INFO L225 Difference]: With dead ends: 73 [2018-11-10 10:45:05,395 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 10:45:05,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 10:45:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 10:45:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-10 10:45:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-10 10:45:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2018-11-10 10:45:05,402 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 24 [2018-11-10 10:45:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:45:05,402 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2018-11-10 10:45:05,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:45:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2018-11-10 10:45:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 10:45:05,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:45:05,405 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:45:05,405 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:45:05,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:45:05,405 INFO L82 PathProgramCache]: Analyzing trace with hash 873701770, now seen corresponding path program 1 times [2018-11-10 10:45:05,406 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:45:05,406 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 10:45:05,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:45:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:45:06,454 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:45:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:45:06,525 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:45:06,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:45:06,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:45:06,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:45:06,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:45:06,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:45:06,543 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 7 states. [2018-11-10 10:45:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:45:11,364 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-11-10 10:45:11,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:45:11,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-10 10:45:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:45:11,517 INFO L225 Difference]: With dead ends: 66 [2018-11-10 10:45:11,517 INFO L226 Difference]: Without dead ends: 55 [2018-11-10 10:45:11,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 10:45:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-10 10:45:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-10 10:45:11,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-10 10:45:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2018-11-10 10:45:11,520 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 24 [2018-11-10 10:45:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:45:11,520 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2018-11-10 10:45:11,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:45:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2018-11-10 10:45:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 10:45:11,521 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:45:11,521 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] [2018-11-10 10:45:11,521 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:45:11,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:45:11,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1112282903, now seen corresponding path program 1 times [2018-11-10 10:45:11,522 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:45:11,522 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 10:45:11,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:45:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:45:12,616 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:45:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:45:12,702 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:45:12,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:45:12,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:45:12,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:45:12,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:45:12,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:45:12,721 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand 7 states. [2018-11-10 10:45:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:45:15,238 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-10 10:45:15,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:45:15,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-10 10:45:15,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:45:15,240 INFO L225 Difference]: With dead ends: 55 [2018-11-10 10:45:15,240 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:45:15,240 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 10:45:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:45:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:45:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:45:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:45:15,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-10 10:45:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:45:15,241 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:45:15,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:45:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:45:15,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:45:15,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-10 10:45:15,398 INFO L425 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L421 ceAbstractionStarter]: At program point L139-3(lines 139 143) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvsgt (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32)))))) [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L144-2(lines 134 159) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L144-3(lines 144 148) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-10 10:45:15,399 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-10 10:45:15,400 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-10 10:45:15,400 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvsgt (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32)))))) [2018-11-10 10:45:15,400 INFO L425 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-10 10:45:15,400 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-10 10:45:15,400 INFO L421 ceAbstractionStarter]: At program point L96-3(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-10 10:45:15,400 INFO L425 ceAbstractionStarter]: For program point L96-4(lines 96 100) no Hoare annotation was computed. [2018-11-10 10:45:15,400 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvsgt (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32))))) [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:45:15,401 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:45:15,401 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:45:15,401 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:45:15,401 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 162 178) the Hoare annotation is: true [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-11-10 10:45:15,401 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 162 178) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L421 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (let ((.cse1 (fp.sub RNE .cse0 .cse0))) (fp.div RNE .cse1 .cse1)) main_~res~0))) [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point L172-1(lines 172 175) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L421 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 162 178) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point L169-1(line 169) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-10 10:45:15,402 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-10 10:45:15,403 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-10 10:45:15,404 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-10 10:45:15,405 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-10 10:45:15,405 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-10 10:45:15,405 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:45:15,405 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:45:15,405 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-10 10:45:15,405 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-10 10:45:15,405 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:45:15,411 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,411 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,412 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,412 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,412 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,412 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,412 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,413 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,417 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,417 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,418 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:45:15 BoogieIcfgContainer [2018-11-10 10:45:15,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:45:15,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:45:15,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:45:15,421 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:45:15,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:44:33" (3/4) ... [2018-11-10 10:45:15,425 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:45:15,430 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 10:45:15,430 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-10 10:45:15,430 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:45:15,431 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:45:15,431 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 10:45:15,437 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2018-11-10 10:45:15,437 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-10 10:45:15,437 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-10 10:45:15,438 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 10:45:15,453 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 10:45:15,454 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !~bvsgt32(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 1065353216bv32)) [2018-11-10 10:45:15,489 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_793b9365-6b83-4b01-8b09-bea042fd163d/bin-2019/utaipan/witness.graphml [2018-11-10 10:45:15,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:45:15,490 INFO L168 Benchmark]: Toolchain (without parser) took 51898.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.8 MB in the beginning and 833.3 MB in the end (delta: 117.5 MB). Peak memory consumption was 247.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,490 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:45:15,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.92 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.50 ms. Allocated memory is still 1.0 GB. Free memory was 934.7 MB in the beginning and 929.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,491 INFO L168 Benchmark]: Boogie Preprocessor took 34.79 ms. Allocated memory is still 1.0 GB. Free memory is still 929.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:45:15,491 INFO L168 Benchmark]: RCFGBuilder took 9750.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 929.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,492 INFO L168 Benchmark]: TraceAbstraction took 41772.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 840.2 MB in the end (delta: 228.7 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,492 INFO L168 Benchmark]: Witness Printer took 68.07 ms. Allocated memory is still 1.2 GB. Free memory was 840.2 MB in the beginning and 833.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 10:45:15,493 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 228.92 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.50 ms. Allocated memory is still 1.0 GB. Free memory was 934.7 MB in the beginning and 929.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.79 ms. Allocated memory is still 1.0 GB. Free memory is still 929.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9750.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 929.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 41772.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 840.2 MB in the end (delta: 228.7 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.07 ms. Allocated memory is still 1.2 GB. Free memory was 840.2 MB in the beginning and 833.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 173]: 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: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,497 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,498 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,498 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,498 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,498 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 10:45:15,499 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !~bvsgt32(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 1065353216bv32)) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. SAFE Result, 41.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 34.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 398 SDtfs, 163 SDslu, 1562 SDs, 0 SdLazy, 174 SolverSat, 10 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 29.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 178 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 24 QuantifiedInterpolants, 18788 SizeOfPredicates, 40 NumberOfNonLiveVariables, 744 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...