./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_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2da48247b776e6180d2b605d662157645a3da524 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:29:13,633 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:29:13,635 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:29:13,646 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:29:13,647 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:29:13,648 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:29:13,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:29:13,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:29:13,655 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:29:13,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:29:13,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:29:13,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:29:13,660 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:29:13,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:29:13,670 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:29:13,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:29:13,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:29:13,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:29:13,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:29:13,677 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:29:13,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:29:13,678 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:29:13,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:29:13,680 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:29:13,680 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:29:13,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:29:13,681 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:29:13,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:29:13,686 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:29:13,687 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:29:13,689 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:29:13,690 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:29:13,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:29:13,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:29:13,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:29:13,693 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:29:13,694 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 19:29:13,713 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:29:13,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:29:13,715 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:29:13,715 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:29:13,716 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:29:13,717 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:29:13,717 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:29:13,717 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:29:13,717 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:29:13,718 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:29:13,719 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:29:13,719 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:29:13,720 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:29:13,720 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:29:13,720 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:29:13,720 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:29:13,720 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:29:13,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:29:13,720 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_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2da48247b776e6180d2b605d662157645a3da524 [2018-10-26 19:29:13,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:29:13,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:29:13,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:29:13,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:29:13,776 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:29:13,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:13,825 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/d67eed639/9b65d52546814e71849dd44bcba778b3/FLAG248c5296d [2018-10-26 19:29:14,222 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:29:14,223 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:14,229 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/d67eed639/9b65d52546814e71849dd44bcba778b3/FLAG248c5296d [2018-10-26 19:29:14,240 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/d67eed639/9b65d52546814e71849dd44bcba778b3 [2018-10-26 19:29:14,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:29:14,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:29:14,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:29:14,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:29:14,250 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:29:14,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed79805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14, skipping insertion in model container [2018-10-26 19:29:14,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:29:14,291 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:29:14,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:29:14,464 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:29:14,511 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:29:14,529 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:29:14,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14 WrapperNode [2018-10-26 19:29:14,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:29:14,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:29:14,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:29:14,530 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:29:14,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... [2018-10-26 19:29:14,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:29:14,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:29:14,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:29:14,594 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:29:14,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:29:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:29:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:29:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 19:29:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-26 19:29:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-10-26 19:29:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:29:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 19:29:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-10-26 19:29:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 19:29:15,480 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:29:15,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:15 BoogieIcfgContainer [2018-10-26 19:29:15,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:29:15,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:29:15,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:29:15,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:29:15,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:29:14" (1/3) ... [2018-10-26 19:29:15,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a31f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:29:15, skipping insertion in model container [2018-10-26 19:29:15,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:14" (2/3) ... [2018-10-26 19:29:15,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a31f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:29:15, skipping insertion in model container [2018-10-26 19:29:15,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:15" (3/3) ... [2018-10-26 19:29:15,487 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:15,495 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:29:15,501 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:29:15,512 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:29:15,537 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:29:15,538 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:29:15,538 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:29:15,538 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:29:15,538 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:29:15,539 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:29:15,539 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:29:15,539 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:29:15,539 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:29:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-10-26 19:29:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 19:29:15,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:29:15,563 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] [2018-10-26 19:29:15,565 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:29:15,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:29:15,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1102411470, now seen corresponding path program 1 times [2018-10-26 19:29:15,572 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:29:15,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:29:15,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:29:15,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:29:15,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:29:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:29:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:29:15,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:29:15,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:29:15,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:29:15,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:29:15,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:29:15,739 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 2 states. [2018-10-26 19:29:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:29:15,771 INFO L93 Difference]: Finished difference Result 210 states and 272 transitions. [2018-10-26 19:29:15,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:29:15,772 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-10-26 19:29:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:29:15,782 INFO L225 Difference]: With dead ends: 210 [2018-10-26 19:29:15,782 INFO L226 Difference]: Without dead ends: 105 [2018-10-26 19:29:15,786 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:29:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-10-26 19:29:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-10-26 19:29:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-10-26 19:29:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2018-10-26 19:29:15,829 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 22 [2018-10-26 19:29:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:29:15,829 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2018-10-26 19:29:15,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:29:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2018-10-26 19:29:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 19:29:15,830 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:29:15,830 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:29:15,831 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:29:15,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:29:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1676661448, now seen corresponding path program 1 times [2018-10-26 19:29:15,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:29:15,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:29:15,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:29:15,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:29:15,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:29:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:29:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:29:15,936 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:29:15,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:29:15 BoogieIcfgContainer [2018-10-26 19:29:15,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:29:15,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:29:15,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:29:15,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:29:15,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:15" (3/4) ... [2018-10-26 19:29:15,983 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:29:15,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:29:15,984 INFO L168 Benchmark]: Toolchain (without parser) took 1739.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,985 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:29:15,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.30 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,987 INFO L168 Benchmark]: Boogie Preprocessor took 55.35 ms. Allocated memory is still 1.0 GB. Free memory was 937.0 MB in the beginning and 934.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,987 INFO L168 Benchmark]: RCFGBuilder took 895.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -208.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,988 INFO L168 Benchmark]: TraceAbstraction took 495.65 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,988 INFO L168 Benchmark]: Witness Printer took 5.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:29:15,993 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.30 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.35 ms. Allocated memory is still 1.0 GB. Free memory was 937.0 MB in the beginning and 934.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 895.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -208.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.65 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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)=4294967315, \old(one_sqrt)=4294967306, \old(pi)=4294967305, \old(pi)=4294967318, \old(pi)=4294967308, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967316, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967307, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967309, \old(qS3_acos)=4294967313, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967314, 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=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] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=4294967310, 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] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=4294967310, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, 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, x=4294967310] [L97] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=4294967310, gf_u={4294967311:0}, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, 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, x=4294967310] [L98] FCALL gf_u.value = (x) VAL [\old(x)=4294967310, gf_u={4294967311:0}, 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, x=4294967310] [L99] EXPR, FCALL gf_u.word VAL [\old(x)=4294967310, gf_u={4294967311:0}, gf_u.word=4294967299, 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=4294967310] [L99] (hx) = gf_u.word [L100] COND FALSE !(0) VAL [\old(x)=4294967310, hx=3, 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, x=4294967310] [L101] ix = hx & 0x7fffffff VAL [\old(x)=4294967310, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, 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, x=4294967310] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=4294967310, hx=3, ix=1065353216, 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=4294967310] [L103] COND TRUE hx > 0 [L104] RET return 0.0; VAL [\old(x)=4294967310, \result=0, hx=3, ix=1065353216, 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, x=4294967310] [L169] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=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, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L169] float res = __ieee754_acosf(x); [L172] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, 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] [L13] RET return x != x; VAL [\old(x)=0, \result=0, 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, x=0] [L172] EXPR isnan_float(res) VAL [isnan_float(res)=0, 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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L172] COND TRUE !isnan_float(res) [L173] __VERIFIER_error() 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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 109 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 126 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=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:29:17,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:29:17,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:29:17,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:29:17,840 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:29:17,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:29:17,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:29:17,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:29:17,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:29:17,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:29:17,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:29:17,846 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:29:17,847 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:29:17,848 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:29:17,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:29:17,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:29:17,851 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:29:17,852 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:29:17,854 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:29:17,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:29:17,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:29:17,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:29:17,869 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:29:17,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:29:17,870 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:29:17,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:29:17,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:29:17,872 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:29:17,873 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:29:17,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:29:17,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:29:17,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:29:17,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:29:17,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:29:17,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:29:17,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:29:17,876 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 19:29:17,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:29:17,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:29:17,889 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:29:17,889 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:29:17,890 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:29:17,890 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:29:17,890 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:29:17,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:29:17,890 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:29:17,891 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:29:17,892 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:29:17,892 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:29:17,892 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:29:17,892 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:29:17,892 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:29:17,892 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:29:17,893 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 19:29:17,893 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:29:17,894 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:29:17,896 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:29:17,897 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_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2da48247b776e6180d2b605d662157645a3da524 [2018-10-26 19:29:17,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:29:17,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:29:17,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:29:17,955 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:29:17,955 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:29:17,956 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:18,016 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/630cca44f/affe4972ae284cb9b0a35b0d623ba82b/FLAG95f595a52 [2018-10-26 19:29:18,432 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:29:18,433 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/sv-benchmarks/c/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:18,441 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/630cca44f/affe4972ae284cb9b0a35b0d623ba82b/FLAG95f595a52 [2018-10-26 19:29:18,461 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/data/630cca44f/affe4972ae284cb9b0a35b0d623ba82b [2018-10-26 19:29:18,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:29:18,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:29:18,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:29:18,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:29:18,475 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:29:18,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699e585b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18, skipping insertion in model container [2018-10-26 19:29:18,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:29:18,521 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:29:18,757 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:29:18,762 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:29:18,812 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:29:18,836 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:29:18,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18 WrapperNode [2018-10-26 19:29:18,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:29:18,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:29:18,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:29:18,837 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:29:18,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... [2018-10-26 19:29:18,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:29:18,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:29:18,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:29:18,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:29:18,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:29:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:29:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:29:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 19:29:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-26 19:29:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-10-26 19:29:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:29:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-10-26 19:29:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:29:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-10-26 19:29:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-10-26 19:29:19,158 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:19,210 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:26,147 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:26,165 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:29,178 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:29,184 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:29:29,192 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:29:29,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:29 BoogieIcfgContainer [2018-10-26 19:29:29,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:29:29,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:29:29,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:29:29,197 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:29:29,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:29:18" (1/3) ... [2018-10-26 19:29:29,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a6a302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:29:29, skipping insertion in model container [2018-10-26 19:29:29,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:29:18" (2/3) ... [2018-10-26 19:29:29,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a6a302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:29:29, skipping insertion in model container [2018-10-26 19:29:29,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:29" (3/3) ... [2018-10-26 19:29:29,201 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-10-26 19:29:29,210 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:29:29,220 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:29:29,235 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:29:29,262 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:29:29,263 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:29:29,263 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:29:29,263 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:29:29,263 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:29:29,263 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:29:29,263 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:29:29,264 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:29:29,264 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:29:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2018-10-26 19:29:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 19:29:29,292 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:29:29,295 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] [2018-10-26 19:29:29,297 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:29:29,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:29:29,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1249525969, now seen corresponding path program 1 times [2018-10-26 19:29:29,306 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:29:29,307 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:29:29,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:29:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:29:29,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:29:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:29:29,422 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:29:29,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:29:29,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:29:29,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:29:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:29:29,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:29:29,447 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 2 states. [2018-10-26 19:29:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:29:29,478 INFO L93 Difference]: Finished difference Result 208 states and 270 transitions. [2018-10-26 19:29:29,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:29:29,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-26 19:29:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:29:29,492 INFO L225 Difference]: With dead ends: 208 [2018-10-26 19:29:29,492 INFO L226 Difference]: Without dead ends: 104 [2018-10-26 19:29:29,496 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 [2018-10-26 19:29:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-26 19:29:29,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-10-26 19:29:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-10-26 19:29:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2018-10-26 19:29:29,547 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 21 [2018-10-26 19:29:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:29:29,548 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2018-10-26 19:29:29,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:29:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2018-10-26 19:29:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 19:29:29,549 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:29:29,549 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:29:29,550 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:29:29,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:29:29,551 INFO L82 PathProgramCache]: Analyzing trace with hash -569388593, now seen corresponding path program 1 times [2018-10-26 19:29:29,552 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:29:29,552 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 19:29:29,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:29:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:29:29,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:29:29,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 19:29:29,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 19:29:29,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,767 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-26 19:29:29,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-26 19:29:29,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-26 19:29:29,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:29:29,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-26 19:29:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:29:30,390 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:29:30,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:29:30,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 19:29:30,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 19:29:30,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 19:29:30,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:29:30,406 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 9 states. [2018-10-26 19:29:31,052 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 19:29:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:29:38,611 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2018-10-26 19:29:38,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 19:29:38,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-10-26 19:29:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:29:38,616 INFO L225 Difference]: With dead ends: 116 [2018-10-26 19:29:38,616 INFO L226 Difference]: Without dead ends: 105 [2018-10-26 19:29:38,618 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-10-26 19:29:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-10-26 19:29:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2018-10-26 19:29:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-10-26 19:29:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2018-10-26 19:29:38,632 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 30 [2018-10-26 19:29:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:29:38,632 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2018-10-26 19:29:38,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 19:29:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2018-10-26 19:29:38,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 19:29:38,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:29:38,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:29:38,633 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:29:38,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:29:38,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1946778321, now seen corresponding path program 1 times [2018-10-26 19:29:38,635 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:29:38,635 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 19:29:38,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:29:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:29:38,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:29:41,166 WARN L179 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-10-26 19:29:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:29:43,989 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:29:44,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:29:44,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 19:29:44,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 19:29:44,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 19:29:44,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:29:44,012 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 9 states. [2018-10-26 19:29:48,283 WARN L179 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-26 19:30:04,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:30:04,700 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2018-10-26 19:30:04,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 19:30:04,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-10-26 19:30:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:30:04,704 INFO L225 Difference]: With dead ends: 112 [2018-10-26 19:30:04,704 INFO L226 Difference]: Without dead ends: 105 [2018-10-26 19:30:04,705 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-26 19:30:04,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-10-26 19:30:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2018-10-26 19:30:04,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-10-26 19:30:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2018-10-26 19:30:04,717 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 30 [2018-10-26 19:30:04,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:30:04,719 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2018-10-26 19:30:04,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 19:30:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2018-10-26 19:30:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 19:30:04,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:30:04,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:30:04,720 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:30:04,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:30:04,721 INFO L82 PathProgramCache]: Analyzing trace with hash 182324299, now seen corresponding path program 1 times [2018-10-26 19:30:04,721 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:30:04,721 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-26 19:30:04,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:30:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:30:04,831 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:30:04,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 19:30:04,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 19:30:04,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-26 19:30:04,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-26 19:30:04,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-26 19:30:04,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,949 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:04,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-26 19:30:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:30:05,091 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:30:05,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:30:05,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 19:30:05,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 19:30:05,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 19:30:05,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:30:05,102 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 9 states. [2018-10-26 19:30:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:30:11,271 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2018-10-26 19:30:11,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 19:30:11,273 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-10-26 19:30:11,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:30:11,274 INFO L225 Difference]: With dead ends: 113 [2018-10-26 19:30:11,274 INFO L226 Difference]: Without dead ends: 80 [2018-10-26 19:30:11,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-10-26 19:30:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-10-26 19:30:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-10-26 19:30:11,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-10-26 19:30:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2018-10-26 19:30:11,281 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 32 [2018-10-26 19:30:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:30:11,281 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2018-10-26 19:30:11,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 19:30:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2018-10-26 19:30:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 19:30:11,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:30:11,282 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] [2018-10-26 19:30:11,282 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:30:11,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:30:11,282 INFO L82 PathProgramCache]: Analyzing trace with hash -14189206, now seen corresponding path program 1 times [2018-10-26 19:30:11,283 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:30:11,283 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 19:30:11,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:30:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:30:12,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:30:12,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 19:30:12,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 19:30:12,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,488 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-26 19:30:12,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-26 19:30:12,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-26 19:30:12,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,518 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:12,520 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-26 19:30:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:30:12,624 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:30:12,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:30:12,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 19:30:12,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 19:30:12,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 19:30:12,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:30:12,643 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 9 states. [2018-10-26 19:30:18,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:30:18,070 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2018-10-26 19:30:18,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 19:30:18,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-10-26 19:30:18,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:30:18,072 INFO L225 Difference]: With dead ends: 90 [2018-10-26 19:30:18,072 INFO L226 Difference]: Without dead ends: 79 [2018-10-26 19:30:18,073 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-10-26 19:30:18,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-10-26 19:30:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-10-26 19:30:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-10-26 19:30:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2018-10-26 19:30:18,079 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 32 [2018-10-26 19:30:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:30:18,080 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2018-10-26 19:30:18,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 19:30:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2018-10-26 19:30:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-26 19:30:18,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:30:18,082 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:30:18,084 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:30:18,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:30:18,084 INFO L82 PathProgramCache]: Analyzing trace with hash -231609589, now seen corresponding path program 1 times [2018-10-26 19:30:18,085 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:30:18,085 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 19:30:18,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:30:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:30:19,392 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:30:19,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 19:30:19,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 19:30:19,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,431 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,439 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-26 19:30:19,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-26 19:30:19,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-26 19:30:19,467 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 19:30:19,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-26 19:30:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:30:19,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:30:19,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:30:19,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 19:30:19,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 19:30:19,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 19:30:19,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:30:19,665 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 9 states. [2018-10-26 19:30:20,282 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-26 19:30:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:30:22,737 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-10-26 19:30:22,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 19:30:22,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-10-26 19:30:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:30:22,738 INFO L225 Difference]: With dead ends: 79 [2018-10-26 19:30:22,739 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:30:22,739 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-10-26 19:30:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:30:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:30:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:30:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:30:22,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-10-26 19:30:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:30:22,740 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:30:22,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 19:30:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:30:22,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:30:22,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:30:23,006 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L97-1(line 97) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L97-2(line 97) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L97-3(line 97) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-10-26 19:30:23,007 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L147-2(line 147) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-10-26 19:30:23,008 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)))))) [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-10-26 19:30:23,008 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L144-2(lines 134 159) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L144-3(lines 144 148) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L140-1(line 140) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L140-2(line 140) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L140-3(line 140) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L99-2(line 99) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-10-26 19:30:23,009 INFO L425 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-10-26 19:30:23,010 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-10-26 19:30:23,010 INFO L425 ceAbstractionStarter]: For program point L145-2(line 145) no Hoare annotation was computed. [2018-10-26 19:30:23,010 INFO L425 ceAbstractionStarter]: For program point L145-3(line 145) no Hoare annotation was computed. [2018-10-26 19:30:23,012 INFO L425 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-10-26 19:30:23,012 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)))))) [2018-10-26 19:30:23,012 INFO L425 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-10-26 19:30:23,012 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-10-26 19:30:23,012 INFO L421 ceAbstractionStarter]: At program point L96-3(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point L96-4(lines 96 100) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point L146(line 146) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point L142-2(line 142) no Hoare annotation was computed. [2018-10-26 19:30:23,013 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))))) [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:30:23,013 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:30:23,013 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:30:23,013 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 162 178) the Hoare annotation is: true [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 162 178) no Hoare annotation was computed. [2018-10-26 19:30:23,014 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))) [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point L172-1(lines 172 175) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2018-10-26 19:30:23,014 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) [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 162 178) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point L169-1(line 169) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point L77(line 77) no Hoare annotation was computed. [2018-10-26 19:30:23,014 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L77-2(line 77) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L77-3(line 77) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-10-26 19:30:23,015 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L79-1(line 79) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-10-26 19:30:23,016 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-26 19:30:23,017 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-10-26 19:30:23,018 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-10-26 19:30:23,018 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-10-26 19:30:23,018 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-10-26 19:30:23,031 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,032 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,033 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,033 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,033 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,033 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,037 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,038 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,039 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:30:23 BoogieIcfgContainer [2018-10-26 19:30:23,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:30:23,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:30:23,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:30:23,045 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:30:23,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:29:29" (3/4) ... [2018-10-26 19:30:23,048 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:30:23,055 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-26 19:30:23,055 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-10-26 19:30:23,055 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:30:23,055 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:30:23,056 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-10-26 19:30:23,061 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-10-26 19:30:23,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-10-26 19:30:23,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 19:30:23,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 19:30:23,081 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 19:30:23,082 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)) [2018-10-26 19:30:23,116 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f5209bbc-c845-41b8-b879-66f468ab53cc/bin-2019/uautomizer/witness.graphml [2018-10-26 19:30:23,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:30:23,117 INFO L168 Benchmark]: Toolchain (without parser) took 64650.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 954.6 MB in the beginning and 1.2 GB in the end (delta: -197.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,117 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:30:23,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.85 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,119 INFO L168 Benchmark]: Boogie Preprocessor took 64.81 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,119 INFO L168 Benchmark]: RCFGBuilder took 10290.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,120 INFO L168 Benchmark]: TraceAbstraction took 53850.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -36.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,120 INFO L168 Benchmark]: Witness Printer took 71.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-10-26 19:30:23,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.85 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.81 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10290.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53850.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -36.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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 [2018-10-26 19:30:23,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,137 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,137 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,137 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,137 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,138 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,138 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,138 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,138 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,138 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,139 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,139 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,139 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-10-26 19:30:23,139 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, 108 locations, 1 error locations. SAFE Result, 53.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 43.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 594 SDtfs, 323 SDslu, 2898 SDs, 0 SdLazy, 367 SolverSat, 18 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 35.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 188 ConstructedInterpolants, 24 QuantifiedInterpolants, 37364 SizeOfPredicates, 36 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 48 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...