/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8015c985f157600a44233f2d61865f454dda9bb9 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8015c985f157600a44233f2d61865f454dda9bb9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:11:50,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:11:50,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:11:50,466 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:11:50,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:11:50,468 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:11:50,469 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:11:50,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:11:50,472 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:11:50,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:11:50,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:11:50,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:11:50,475 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:11:50,476 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:11:50,477 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:11:50,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:11:50,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:11:50,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:11:50,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:11:50,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:11:50,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:11:50,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:11:50,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:11:50,489 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:11:50,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:11:50,490 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:11:50,491 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:11:50,492 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:11:50,493 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:11:50,494 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:11:50,494 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:11:50,495 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:11:50,495 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:11:50,496 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:11:50,497 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:11:50,497 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:11:50,498 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:11:50,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:11:50,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:11:50,526 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:11:50,526 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:11:50,526 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:11:50,527 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:11:50,528 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:11:50,528 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:11:50,528 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:11:50,528 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:11:50,528 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:11:50,528 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:11:50,529 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:11:50,529 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:11:50,529 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:11:50,529 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:11:50,531 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:11:50,531 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:11:50,531 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:11:50,532 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:11:50,532 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:11:50,532 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:11:50,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:11:50,533 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:11:50,533 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:11:50,534 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:11:50,534 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:11:50,534 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:11:50,534 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:11:50,534 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-09-20 15:11:50,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:11:50,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:11:50,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:11:50,603 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:11:50,604 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:11:50,605 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-09-20 15:11:50,987 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb740b788/7c0655dbd06f49ada70a7b2ba0c983c9/FLAG64cf35ecc [2018-09-20 15:11:51,185 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:11:51,190 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-09-20 15:11:51,203 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb740b788/7c0655dbd06f49ada70a7b2ba0c983c9/FLAG64cf35ecc [2018-09-20 15:11:51,226 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb740b788/7c0655dbd06f49ada70a7b2ba0c983c9 [2018-09-20 15:11:51,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:11:51,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:11:51,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:11:51,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:11:51,243 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:11:51,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696c0be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51, skipping insertion in model container [2018-09-20 15:11:51,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,258 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:11:51,598 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:11:51,615 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:11:51,674 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:11:51,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51 WrapperNode [2018-09-20 15:11:51,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:11:51,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:11:51,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:11:51,717 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:11:51,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... [2018-09-20 15:11:51,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:11:51,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:11:51,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:11:51,793 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:11:51,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:11:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:11:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:11:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:11:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-20 15:11:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:11:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:11:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:11:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:11:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:11:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:11:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:11:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:11:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:11:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:11:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:11:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:11:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:11:52,907 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:11:52,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:11:52 BoogieIcfgContainer [2018-09-20 15:11:52,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:11:52,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:11:52,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:11:52,912 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:11:52,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:11:51" (1/3) ... [2018-09-20 15:11:52,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5e702c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:11:52, skipping insertion in model container [2018-09-20 15:11:52,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:51" (2/3) ... [2018-09-20 15:11:52,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5e702c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:11:52, skipping insertion in model container [2018-09-20 15:11:52,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:11:52" (3/3) ... [2018-09-20 15:11:52,916 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-09-20 15:11:52,926 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:11:52,936 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:11:52,984 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:11:52,984 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:11:52,984 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:11:52,985 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:11:52,985 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:11:52,985 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:11:52,985 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:11:52,985 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:11:52,986 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:11:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2018-09-20 15:11:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-20 15:11:53,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:11:53,017 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:11:53,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:11:53,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1080794843, now seen corresponding path program 1 times [2018-09-20 15:11:53,028 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:11:53,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:11:53,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:11:53,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:11:53,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:11:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:11:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:11:53,204 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:11:53,205 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:11:53,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:11:53,225 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:11:53,226 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:11:53,228 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2018-09-20 15:11:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:11:53,270 INFO L93 Difference]: Finished difference Result 234 states and 303 transitions. [2018-09-20 15:11:53,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:11:53,272 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-20 15:11:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:11:53,285 INFO L225 Difference]: With dead ends: 234 [2018-09-20 15:11:53,285 INFO L226 Difference]: Without dead ends: 117 [2018-09-20 15:11:53,291 INFO L606 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 [2018-09-20 15:11:53,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-09-20 15:11:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-09-20 15:11:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-09-20 15:11:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2018-09-20 15:11:53,344 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 18 [2018-09-20 15:11:53,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:11:53,345 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2018-09-20 15:11:53,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:11:53,345 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2018-09-20 15:11:53,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:11:53,347 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:11:53,347 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:11:53,347 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:11:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2059688785, now seen corresponding path program 1 times [2018-09-20 15:11:53,348 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:11:53,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:11:53,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:11:53,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:11:53,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:11:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:11:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:11:53,466 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:11:53,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:11:53 BoogieIcfgContainer [2018-09-20 15:11:53,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:11:53,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:11:53,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:11:53,522 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:11:53,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:11:52" (3/4) ... [2018-09-20 15:11:53,532 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:11:53,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:11:53,533 INFO L168 Benchmark]: Toolchain (without parser) took 2303.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:11:53,535 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-20 15:11:53,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:11:53,537 INFO L168 Benchmark]: Boogie Preprocessor took 76.33 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:11:53,537 INFO L168 Benchmark]: RCFGBuilder took 1114.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:11:53,539 INFO L168 Benchmark]: TraceAbstraction took 609.26 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:11:53,539 INFO L168 Benchmark]: Witness Printer took 10.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:11:53,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 481.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.33 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1114.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 609.26 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 10.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] 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)=4294967314, \old(one_sqrt)=4294967306, \old(pi)=4294967317, \old(pi)=4294967308, \old(pi)=4294967305, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967315, \old(pS2_acos)=4294967316, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967307, \old(pS5_acos)=4294967318, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967309, \old(qS3_acos)=4294967312, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967313, 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] [L177] float x = 1.0f; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1, 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] [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, 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=1] [L94] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=1, gf_u={4294967310:0}, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, 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=1] [L95] FCALL gf_u.value = (x) VAL [\old(x)=1, gf_u={4294967310:0}, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, 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=1] [L96] EXPR, FCALL gf_u.word VAL [\old(x)=1, gf_u={4294967310:0}, gf_u.word=4294967299, 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=1] [L96] (hx) = gf_u.word VAL [\old(x)=1, gf_u={4294967310:0}, gf_u.word=4294967299, hx=3, 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=1] [L96] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=4294967319, \old(x)=1, gf_u={4294967310:0}, gf_u.word=4294967299, hx=3, 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=1] [L97] COND FALSE !(0) VAL [\old(x)=1, 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=1] [L98] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=3, 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=1] [L99] COND TRUE ix == 0x3f800000 VAL [\old(x)=1, hx=3, ix=1065353216, 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=1] [L100] COND TRUE hx > 0 [L101] RET return 0.0; VAL [\old(x)=1, \result=0, hx=3, ix=1065353216, 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=1] [L178] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, 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, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 121 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 139 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=121occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:11:55,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:11:55,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:11:55,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:11:55,930 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:11:55,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:11:55,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:11:55,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:11:55,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:11:55,940 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:11:55,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:11:55,942 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:11:55,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:11:55,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:11:55,951 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:11:55,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:11:55,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:11:55,960 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:11:55,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:11:55,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:11:55,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:11:55,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:11:55,980 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:11:55,980 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:11:55,980 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:11:55,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:11:55,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:11:55,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:11:55,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:11:55,991 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:11:55,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:11:55,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:11:55,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:11:55,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:11:55,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:11:55,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:11:56,000 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:11:56,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:11:56,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:11:56,029 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:11:56,030 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:11:56,031 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:11:56,032 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:11:56,032 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:11:56,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:11:56,032 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:11:56,033 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:11:56,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:11:56,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:11:56,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:11:56,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:11:56,035 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:11:56,035 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:11:56,035 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:11:56,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:11:56,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:11:56,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:11:56,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:11:56,038 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:11:56,039 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:11:56,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:11:56,039 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:11:56,039 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:11:56,039 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:11:56,040 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:11:56,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:11:56,041 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:11:56,041 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:11:56,041 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-09-20 15:11:56,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:11:56,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:11:56,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:11:56,146 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:11:56,146 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:11:56,147 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-09-20 15:11:56,525 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b0e41d7/1656fe49a144402aaac579464a145f78/FLAG3b45f485f [2018-09-20 15:11:56,708 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:11:56,711 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-09-20 15:11:56,721 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b0e41d7/1656fe49a144402aaac579464a145f78/FLAG3b45f485f [2018-09-20 15:11:56,738 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b0e41d7/1656fe49a144402aaac579464a145f78 [2018-09-20 15:11:56,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:11:56,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:11:56,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:11:56,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:11:56,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:11:56,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:11:56" (1/1) ... [2018-09-20 15:11:56,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13900c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:56, skipping insertion in model container [2018-09-20 15:11:56,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:11:56" (1/1) ... [2018-09-20 15:11:56,769 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:11:57,078 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:11:57,109 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:11:57,182 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:11:57,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57 WrapperNode [2018-09-20 15:11:57,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:11:57,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:11:57,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:11:57,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:11:57,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... [2018-09-20 15:11:57,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:11:57,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:11:57,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:11:57,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:11:57,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:11:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:11:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:11:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:11:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-20 15:11:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:11:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:11:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:11:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:11:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:11:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:11:57,759 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:11:57,804 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:04,435 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:04,447 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:07,822 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:07,830 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:07,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:07,865 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:12:07,876 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:12:07,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:12:07 BoogieIcfgContainer [2018-09-20 15:12:07,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:12:07,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:12:07,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:12:07,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:12:07,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:11:56" (1/3) ... [2018-09-20 15:12:07,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b8d3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:12:07, skipping insertion in model container [2018-09-20 15:12:07,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:11:57" (2/3) ... [2018-09-20 15:12:07,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b8d3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:12:07, skipping insertion in model container [2018-09-20 15:12:07,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:12:07" (3/3) ... [2018-09-20 15:12:07,884 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-09-20 15:12:07,894 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:12:07,902 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:12:07,948 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:12:07,948 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:12:07,949 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:12:07,949 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:12:07,949 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:12:07,949 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:12:07,949 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:12:07,949 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:12:07,950 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:12:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2018-09-20 15:12:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-20 15:12:07,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:07,980 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:07,982 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:07,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1080794843, now seen corresponding path program 1 times [2018-09-20 15:12:07,993 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:07,994 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:08,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:08,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:08,148 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:08,165 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:08,165 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:12:08,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:12:08,185 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:12:08,186 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:12:08,188 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2018-09-20 15:12:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:08,237 INFO L93 Difference]: Finished difference Result 234 states and 303 transitions. [2018-09-20 15:12:08,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:12:08,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-20 15:12:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:08,260 INFO L225 Difference]: With dead ends: 234 [2018-09-20 15:12:08,260 INFO L226 Difference]: Without dead ends: 117 [2018-09-20 15:12:08,274 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:12:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-09-20 15:12:08,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-09-20 15:12:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-09-20 15:12:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2018-09-20 15:12:08,345 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 18 [2018-09-20 15:12:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:08,345 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2018-09-20 15:12:08,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:12:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2018-09-20 15:12:08,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:12:08,347 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:08,347 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:08,348 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:08,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2059688785, now seen corresponding path program 1 times [2018-09-20 15:12:08,349 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:08,349 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:08,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:08,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:08,589 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:08,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:08,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 15:12:08,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-20 15:12:08,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-20 15:12:08,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:12:08,606 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 5 states. [2018-09-20 15:12:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:16,774 INFO L93 Difference]: Finished difference Result 124 states and 142 transitions. [2018-09-20 15:12:17,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:12:17,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-09-20 15:12:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:17,007 INFO L225 Difference]: With dead ends: 124 [2018-09-20 15:12:17,007 INFO L226 Difference]: Without dead ends: 121 [2018-09-20 15:12:17,009 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:12:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-09-20 15:12:17,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-09-20 15:12:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-20 15:12:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2018-09-20 15:12:17,023 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 27 [2018-09-20 15:12:17,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:17,024 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2018-09-20 15:12:17,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-20 15:12:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2018-09-20 15:12:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:12:17,026 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:17,026 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:17,026 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:17,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1347774830, now seen corresponding path program 1 times [2018-09-20 15:12:17,030 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:17,030 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:17,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:17,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:17,256 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 [2018-09-20 15:12:17,261 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 [2018-09-20 15:12:17,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:12:17,319 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 [2018-09-20 15:12:17,336 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 [2018-09-20 15:12:17,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,360 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:17,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:12:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:17,626 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:17,642 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:17,642 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:12:17,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:12:17,643 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:12:17,643 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:12:17,643 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 8 states. [2018-09-20 15:12:18,124 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:12:18,345 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 15:12:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:24,907 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2018-09-20 15:12:24,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-20 15:12:24,908 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-09-20 15:12:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:24,913 INFO L225 Difference]: With dead ends: 146 [2018-09-20 15:12:24,913 INFO L226 Difference]: Without dead ends: 123 [2018-09-20 15:12:24,914 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-20 15:12:24,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-09-20 15:12:24,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2018-09-20 15:12:24,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-20 15:12:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2018-09-20 15:12:24,929 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 27 [2018-09-20 15:12:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:24,929 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2018-09-20 15:12:24,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:12:24,930 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2018-09-20 15:12:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:12:24,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:24,931 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:24,931 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:24,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1968610319, now seen corresponding path program 1 times [2018-09-20 15:12:24,932 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:24,934 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:24,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:25,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:25,250 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 [2018-09-20 15:12:25,256 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 [2018-09-20 15:12:25,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,260 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:12:25,302 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 [2018-09-20 15:12:25,307 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 [2018-09-20 15:12:25,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:25,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:12:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:25,472 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:25,490 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:25,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:12:25,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:12:25,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:12:25,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:12:25,492 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 9 states. [2018-09-20 15:12:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:34,092 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2018-09-20 15:12:34,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:12:34,093 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-09-20 15:12:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:34,095 INFO L225 Difference]: With dead ends: 146 [2018-09-20 15:12:34,095 INFO L226 Difference]: Without dead ends: 98 [2018-09-20 15:12:34,096 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:12:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-20 15:12:34,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-20 15:12:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:12:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2018-09-20 15:12:34,105 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 27 [2018-09-20 15:12:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:34,105 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2018-09-20 15:12:34,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:12:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2018-09-20 15:12:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:12:34,106 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:34,107 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:34,107 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:34,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1454553322, now seen corresponding path program 1 times [2018-09-20 15:12:34,108 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:34,108 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:34,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:35,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:35,291 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 [2018-09-20 15:12:35,296 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 [2018-09-20 15:12:35,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:12:35,344 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 [2018-09-20 15:12:35,357 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 [2018-09-20 15:12:35,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:35,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:12:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:35,490 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:35,517 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:35,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:12:35,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:12:35,518 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:12:35,518 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:12:35,519 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand 9 states. [2018-09-20 15:12:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:41,342 INFO L93 Difference]: Finished difference Result 121 states and 134 transitions. [2018-09-20 15:12:41,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:12:41,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-20 15:12:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:41,347 INFO L225 Difference]: With dead ends: 121 [2018-09-20 15:12:41,347 INFO L226 Difference]: Without dead ends: 97 [2018-09-20 15:12:41,348 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:12:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-20 15:12:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-09-20 15:12:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-09-20 15:12:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2018-09-20 15:12:41,356 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 29 [2018-09-20 15:12:41,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:41,356 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2018-09-20 15:12:41,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:12:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2018-09-20 15:12:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-20 15:12:41,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:41,358 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:12:41,358 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash -415061973, now seen corresponding path program 1 times [2018-09-20 15:12:41,359 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:41,359 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:12:41,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:41,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:41,551 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 [2018-09-20 15:12:41,558 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 [2018-09-20 15:12:41,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,562 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:12:41,606 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 [2018-09-20 15:12:41,611 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 [2018-09-20 15:12:41,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:41,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:12:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:41,799 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:41,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:41,810 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-20 15:12:41,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-20 15:12:41,811 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-20 15:12:41,811 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-20 15:12:41,811 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 12 states. [2018-09-20 15:12:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:44,810 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2018-09-20 15:12:44,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:12:44,810 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-09-20 15:12:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:44,812 INFO L225 Difference]: With dead ends: 102 [2018-09-20 15:12:44,812 INFO L226 Difference]: Without dead ends: 92 [2018-09-20 15:12:44,814 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:12:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-09-20 15:12:44,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-09-20 15:12:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-09-20 15:12:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2018-09-20 15:12:44,822 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 43 [2018-09-20 15:12:44,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:44,823 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2018-09-20 15:12:44,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-20 15:12:44,823 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2018-09-20 15:12:44,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:12:44,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:12:44,826 INFO L376 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] [2018-09-20 15:12:44,826 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:12:44,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1539319839, now seen corresponding path program 1 times [2018-09-20 15:12:44,827 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:12:44,827 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:12:44,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:12:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:12:46,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:12:46,159 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 [2018-09-20 15:12:46,165 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 [2018-09-20 15:12:46,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:12:46,204 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 [2018-09-20 15:12:46,207 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 [2018-09-20 15:12:46,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:12:46,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:12:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:12:46,500 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:12:46,533 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:12:46,533 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:12:46,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:12:46,534 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:12:46,534 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:12:46,534 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand 9 states. [2018-09-20 15:12:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:12:49,586 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2018-09-20 15:12:49,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:12:49,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2018-09-20 15:12:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:12:49,587 INFO L225 Difference]: With dead ends: 92 [2018-09-20 15:12:49,587 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:12:49,588 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:12:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:12:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:12:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:12:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:12:49,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-09-20 15:12:49,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:12:49,589 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:12:49,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:12:49,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:12:49,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:12:49,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:12:49,929 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2018-09-20 15:12:49,929 INFO L422 ceAbstractionStarter]: At program point L93-3(lines 93 97) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point L93-4(lines 93 97) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 90 157) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point L143(line 143) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L426 ceAbstractionStarter]: For program point L139-2(line 139) no Hoare annotation was computed. [2018-09-20 15:12:49,930 INFO L429 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 90 157) the Hoare annotation is: true [2018-09-20 15:12:49,930 INFO L422 ceAbstractionStarter]: At program point L127(line 127) 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 (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L94-1(line 94) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L94-2(line 94) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L94-3(line 94) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L144(line 144) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L144-1(line 144) no Hoare annotation was computed. [2018-09-20 15:12:49,931 INFO L426 ceAbstractionStarter]: For program point L144-2(line 144) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L422 ceAbstractionStarter]: At program point L136-3(lines 136 140) 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 (= |__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 (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) (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)))))) [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 90 157) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-09-20 15:12:49,932 INFO L426 ceAbstractionStarter]: For program point L141-2(lines 131 156) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L141-3(lines 141 145) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L137-2(line 137) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L137-3(line 137) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-09-20 15:12:49,933 INFO L426 ceAbstractionStarter]: For program point L96-1(line 96) no Hoare annotation was computed. [2018-09-20 15:12:49,934 INFO L426 ceAbstractionStarter]: For program point L96-2(line 96) no Hoare annotation was computed. [2018-09-20 15:12:49,934 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-20 15:12:49,934 INFO L426 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-09-20 15:12:49,934 INFO L426 ceAbstractionStarter]: For program point L142-2(line 142) no Hoare annotation was computed. [2018-09-20 15:12:49,936 INFO L426 ceAbstractionStarter]: For program point L142-3(line 142) no Hoare annotation was computed. [2018-09-20 15:12:49,936 INFO L426 ceAbstractionStarter]: For program point L138(line 138) no Hoare annotation was computed. [2018-09-20 15:12:49,936 INFO L422 ceAbstractionStarter]: At program point L134(line 134) 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 (= |__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 (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) (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)))))) [2018-09-20 15:12:49,936 INFO L426 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2018-09-20 15:12:49,936 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:12:49,936 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:12:49,936 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:12:49,937 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:12:49,937 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:12:49,937 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:12:49,937 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:12:49,937 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 171 187) the Hoare annotation is: true [2018-09-20 15:12:49,937 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 171 187) no Hoare annotation was computed. [2018-09-20 15:12:49,937 INFO L426 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2018-09-20 15:12:49,937 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-20 15:12:49,938 INFO L422 ceAbstractionStarter]: At program point L181-1(line 181) the Hoare annotation is: (and (= main_~x~0 ((_ to_fp 8 24) RNE 1.0)) (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) main_~res~0) |main_#t~short17|) [2018-09-20 15:12:49,938 INFO L426 ceAbstractionStarter]: For program point L181-2(line 181) no Hoare annotation was computed. [2018-09-20 15:12:49,938 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2018-09-20 15:12:49,938 INFO L422 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (= main_~x~0 ((_ to_fp 8 24) RNE 1.0)) [2018-09-20 15:12:49,938 INFO L426 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2018-09-20 15:12:49,938 INFO L426 ceAbstractionStarter]: For program point L181-4(lines 181 184) no Hoare annotation was computed. [2018-09-20 15:12:49,939 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 171 187) no Hoare annotation was computed. [2018-09-20 15:12:49,939 INFO L426 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L429 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:12:49,940 INFO L426 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L429 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: true [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:12:49,941 INFO L429 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:12:49,942 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L429 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: true [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:12:49,943 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-20 15:12:49,944 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-20 15:12:49,944 INFO L426 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-09-20 15:12:49,944 INFO L429 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: true [2018-09-20 15:12:49,944 INFO L426 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:12:49,944 INFO L426 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-09-20 15:12:49,944 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L76-2(line 76) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L163-2(line 163) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2018-09-20 15:12:49,945 INFO L426 ceAbstractionStarter]: For program point L163-3(line 163) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L422 ceAbstractionStarter]: At program point L162-3(lines 162 166) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point L162-4(lines 162 166) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 159 169) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L429 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 159 169) the Hoare annotation is: true [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 159 169) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point L165(line 165) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point L164(line 164) no Hoare annotation was computed. [2018-09-20 15:12:49,946 INFO L426 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2018-09-20 15:12:49,947 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-20 15:12:49,947 INFO L426 ceAbstractionStarter]: For program point L165-2(line 165) no Hoare annotation was computed. [2018-09-20 15:12:49,947 INFO L426 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-09-20 15:12:49,975 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,976 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,976 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,976 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,979 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,980 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,980 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,980 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,983 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,987 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,988 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,988 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,988 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,988 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,989 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,989 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:49,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:12:49 BoogieIcfgContainer [2018-09-20 15:12:49,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:12:49,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:12:49,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:12:49,996 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:12:49,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:12:07" (3/4) ... [2018-09-20 15:12:50,002 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:12:50,011 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-09-20 15:12:50,011 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:12:50,012 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:12:50,012 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-20 15:12:50,012 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-20 15:12:50,025 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-09-20 15:12:50,026 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-09-20 15:12:50,026 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 15:12:50,027 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:12:50,063 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:12:50,064 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:12:50,065 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 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 3229614080bv32) == 0bv32))) && (\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])) [2018-09-20 15:12:50,130 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:12:50,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:12:50,131 INFO L168 Benchmark]: Toolchain (without parser) took 53389.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,132 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-20 15:12:50,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,133 INFO L168 Benchmark]: Boogie Preprocessor took 115.33 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,133 INFO L168 Benchmark]: RCFGBuilder took 10521.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,134 INFO L168 Benchmark]: TraceAbstraction took 42118.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.3 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,134 INFO L168 Benchmark]: Witness Printer took 134.15 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:12:50,137 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 493.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.33 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10521.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42118.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.3 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * Witness Printer took 134.15 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: 7.3 MB). Peak memory consumption was 7.3 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: 182]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant [2018-09-20 15:12:50,144 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,144 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,145 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-09-20 15:12:50,147 WARN L389 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 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 3229614080bv32) == 0bv32))) && (\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])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 121 locations, 1 error locations. SAFE Result, 42.0s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 36.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 777 SDtfs, 297 SDslu, 3698 SDs, 0 SdLazy, 447 SolverSat, 23 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 31.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 43 PreInvPairs, 57 NumberOfFragments, 149 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 22 QuantifiedInterpolants, 38155 SizeOfPredicates, 40 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...