/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0662b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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_0662b_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 a4c379b7a04a6d66192cdd980e7a650440d3ad5e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................ 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_0662b_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 a4c379b7a04a6d66192cdd980e7a650440d3ad5e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:22:45,602 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:45,604 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:45,616 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:45,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:45,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:45,619 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:45,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:45,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:45,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:45,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:45,626 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:45,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:45,628 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:45,630 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:45,630 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:45,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:45,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:45,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:45,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:45,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:45,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:45,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:45,645 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:45,645 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:45,646 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:45,647 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:45,649 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:45,649 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:45,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:45,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:45,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:45,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:45,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:45,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:45,655 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:45,655 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:22:45,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:45,672 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:45,673 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:45,673 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:45,674 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:45,674 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:45,674 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:45,675 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:45,675 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:45,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:22:45,675 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:45,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:45,676 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:45,676 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:45,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:45,677 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:45,677 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:45,677 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:45,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:45,678 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:45,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:45,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:45,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:45,679 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:45,679 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:45,679 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:45,679 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:22:45,680 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:45,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:22:45,680 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 -> a4c379b7a04a6d66192cdd980e7a650440d3ad5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:45,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:45,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:45,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:45,759 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:45,759 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:45,760 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:22:46,020 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c8ee557/8f829042c9ed4da785af362edae2585e/FLAGecbdd1a06 [2018-09-21 18:22:46,249 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:46,250 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:22:46,260 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c8ee557/8f829042c9ed4da785af362edae2585e/FLAGecbdd1a06 [2018-09-21 18:22:46,278 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c8ee557/8f829042c9ed4da785af362edae2585e [2018-09-21 18:22:46,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:46,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:46,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:46,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:46,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:46,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e69e023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46, skipping insertion in model container [2018-09-21 18:22:46,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,318 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:46,589 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:46,610 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:46,653 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:46,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46 WrapperNode [2018-09-21 18:22:46,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:46,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:46,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:46,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:46,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (1/1) ... [2018-09-21 18:22:46,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:46,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:46,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:46,762 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:46,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (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 [2018-09-21 18:22:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:22:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:22:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:22:48,044 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:22:48,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48 BoogieIcfgContainer [2018-09-21 18:22:48,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:22:48,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:22:48,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:22:48,049 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:22:48,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:46" (1/3) ... [2018-09-21 18:22:48,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdd2617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:48, skipping insertion in model container [2018-09-21 18:22:48,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:46" (2/3) ... [2018-09-21 18:22:48,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdd2617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:48, skipping insertion in model container [2018-09-21 18:22:48,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48" (3/3) ... [2018-09-21 18:22:48,053 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:22:48,064 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:22:48,073 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:22:48,115 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:22:48,116 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:22:48,116 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:22:48,116 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:22:48,117 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:22:48,117 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:22:48,117 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:22:48,117 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:22:48,117 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:22:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:22:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:22:48,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:48,154 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:22:48,157 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:48,163 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:22:48,165 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:48,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:48,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:48,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:48,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:48,377 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:48,378 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:22:48,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:22:48,397 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:22:48,398 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:48,400 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:22:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:48,437 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:22:48,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:22:48,439 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:22:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:48,453 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:22:48,455 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:48,457 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 [2018-09-21 18:22:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:48,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:22:48,515 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:22:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:48,515 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:22:48,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:22:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:22:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:22:48,518 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:48,518 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] [2018-09-21 18:22:48,519 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:48,519 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:22:48,520 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:48,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:48,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:48,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:48,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:48,722 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:22:48,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:22:48 BoogieIcfgContainer [2018-09-21 18:22:48,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:22:48,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:22:48,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:22:48,774 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:22:48,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48" (3/4) ... [2018-09-21 18:22:48,780 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:22:48,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:22:48,782 INFO L168 Benchmark]: Toolchain (without parser) took 2497.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -110.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:48,791 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. [2018-09-21 18:22:48,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:48,793 INFO L168 Benchmark]: Boogie Preprocessor took 59.95 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:48,794 INFO L168 Benchmark]: RCFGBuilder took 1282.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:48,797 INFO L168 Benchmark]: TraceAbstraction took 727.49 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:48,799 INFO L168 Benchmark]: Witness Printer took 7.01 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. [2018-09-21 18:22:48,805 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 409.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.95 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1282.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 727.49 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.01 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: 230]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 229, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticFLOAToperation at line 135. Possible FailurePath: [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L47-L49] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L115-L116] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(huge_atan)=6442450955, \old(one_atan)=6442450945, \old(pi)=6442450950, \old(pi_lo_atan2)=6442450964, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450949, \old(tiny_atan2)=6442450960, \old(zero_atan2)=6442450959, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L216] float x = 0.0f; [L217] float y = __VERIFIER_nondet_float(); [L224] COND TRUE y < 0.0f VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L226] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L119] float z; [L120] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450956:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450956:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450956:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450956:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450957, \old(x)=0, \old(y)=6442450958, gf_u={6442450956:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450954:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450954:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=0, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=6442450965, \old(x)=0, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=0, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L226] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=6442450953, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L226] float res = __ieee754_atan2f(y, x); [L229] COND TRUE res != -pi_o_2 VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450953, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] [L230] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450953, tiny_atan2=1/1000000000000000000000000000000, x=0, y=6442450958, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 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=157occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 0.1.23-5eb3fea [2018-09-21 18:22:51,197 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:51,199 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:51,218 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:51,220 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:51,221 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:51,225 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:51,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:51,230 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:51,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:51,236 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:51,236 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:51,237 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:51,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:51,239 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:51,240 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:51,241 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:51,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:51,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:51,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:51,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:51,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:51,251 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:51,251 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:51,251 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:51,252 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:51,253 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:51,254 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:51,255 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:51,256 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:51,256 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:51,257 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:51,257 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:51,258 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:51,259 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:51,259 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:51,260 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:22:51,285 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:51,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:51,288 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:51,289 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:51,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:51,290 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:51,291 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:51,291 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:51,291 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:51,291 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:51,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:51,292 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:51,292 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:51,293 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:51,294 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:51,294 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:51,294 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:51,294 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:51,294 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:51,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:51,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:51,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:51,298 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:22:51,298 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:51,298 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:22:51,298 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:22:51,298 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 -> a4c379b7a04a6d66192cdd980e7a650440d3ad5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:51,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:51,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:51,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:51,382 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:51,382 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:51,383 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:22:51,736 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c43879c5/2ca34f864224417c9e3fdaca934e9792/FLAGcea3999ad [2018-09-21 18:22:51,958 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:51,959 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:22:51,969 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c43879c5/2ca34f864224417c9e3fdaca934e9792/FLAGcea3999ad [2018-09-21 18:22:51,999 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c43879c5/2ca34f864224417c9e3fdaca934e9792 [2018-09-21 18:22:52,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:52,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:52,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:52,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:52,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:52,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5291ec34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52, skipping insertion in model container [2018-09-21 18:22:52,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,040 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:52,411 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:52,447 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:52,520 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:52,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52 WrapperNode [2018-09-21 18:22:52,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:52,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:52,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:52,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:52,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:52,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:52,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:52,657 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:52,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (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 [2018-09-21 18:22:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:52,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:22:52,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:22:53,114 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:53,159 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:53,219 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:53,236 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:54,232 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:54,261 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:57,019 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:57,156 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:03,687 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:05,862 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:08,467 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:23:08,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:08 BoogieIcfgContainer [2018-09-21 18:23:08,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:23:08,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:23:08,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:23:08,478 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:23:08,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:52" (1/3) ... [2018-09-21 18:23:08,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cce575b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:08, skipping insertion in model container [2018-09-21 18:23:08,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (2/3) ... [2018-09-21 18:23:08,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cce575b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:08, skipping insertion in model container [2018-09-21 18:23:08,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:08" (3/3) ... [2018-09-21 18:23:08,484 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0662b_true-unreach-call.c [2018-09-21 18:23:08,496 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:23:08,507 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:23:08,563 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:23:08,564 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:23:08,564 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:23:08,565 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:23:08,565 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:23:08,565 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:23:08,565 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:23:08,565 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:23:08,566 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:23:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:23:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:23:08,601 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:08,602 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:08,606 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:23:08,617 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:08,618 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 [2018-09-21 18:23:08,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:08,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:08,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:08,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:08,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:23:08,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:23:08,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:23:08,828 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:08,831 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:23:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:08,863 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:23:08,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:23:08,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:23:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:08,884 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:23:08,884 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:08,890 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:23:08,962 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:23:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:08,963 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:23:08,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:23:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:23:08,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:23:08,965 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:08,965 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] [2018-09-21 18:23:08,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:08,966 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:23:08,967 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:08,967 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 [2018-09-21 18:23:08,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:09,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:09,294 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 [2018-09-21 18:23:09,306 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 [2018-09-21 18:23:09,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,328 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,372 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:23:09,590 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 [2018-09-21 18:23:09,605 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 [2018-09-21 18:23:09,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,636 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:09,664 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:23:10,200 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 [2018-09-21 18:23:10,215 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 [2018-09-21 18:23:10,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:10,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:10,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:23:10,344 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:23:10,504 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 [2018-09-21 18:23:10,511 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 [2018-09-21 18:23:10,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:10,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:10,551 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:23:10,552 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:23:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:11,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:11,082 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:11,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:23:11,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:23:11,091 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:23:11,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:23:11,094 INFO L87 Difference]: Start difference. First operand 152 states and 191 transitions. Second operand 14 states. [2018-09-21 18:23:13,747 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:23:16,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:16,065 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2018-09-21 18:23:16,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:23:16,067 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-09-21 18:23:16,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:16,071 INFO L225 Difference]: With dead ends: 154 [2018-09-21 18:23:16,071 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:16,073 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:23:16,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:16,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2018-09-21 18:23:16,091 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 37 [2018-09-21 18:23:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:16,092 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2018-09-21 18:23:16,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:23:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2018-09-21 18:23:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:16,095 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:16,095 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] [2018-09-21 18:23:16,095 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1076772893, now seen corresponding path program 1 times [2018-09-21 18:23:16,096 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:16,097 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) [2018-09-21 18:23:16,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:16,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:16,404 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:23:16,537 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:23:16,692 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-21 18:23:16,827 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-21 18:23:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:16,838 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:16,852 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:16,852 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:23:16,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:23:16,853 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:23:16,853 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:23:16,853 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 7 states. [2018-09-21 18:23:26,245 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:23:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:28,865 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2018-09-21 18:23:28,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:23:28,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2018-09-21 18:23:28,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:28,870 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:23:28,871 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:28,871 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2018-09-21 18:23:28,886 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2018-09-21 18:23:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:28,886 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2018-09-21 18:23:28,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:23:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2018-09-21 18:23:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:28,888 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:28,888 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] [2018-09-21 18:23:28,890 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:28,890 INFO L82 PathProgramCache]: Analyzing trace with hash 698234469, now seen corresponding path program 1 times [2018-09-21 18:23:28,890 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:28,891 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 [2018-09-21 18:23:28,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:29,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:29,049 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 [2018-09-21 18:23:29,058 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 [2018-09-21 18:23:29,059 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,064 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:29,098 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 [2018-09-21 18:23:29,102 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 [2018-09-21 18:23:29,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:29,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:29,222 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:29,239 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:29,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:23:29,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:23:29,240 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:23:29,240 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:23:29,240 INFO L87 Difference]: Start difference. First operand 152 states and 189 transitions. Second operand 8 states. [2018-09-21 18:23:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:30,958 INFO L93 Difference]: Finished difference Result 155 states and 191 transitions. [2018-09-21 18:23:30,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:23:30,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2018-09-21 18:23:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:30,962 INFO L225 Difference]: With dead ends: 155 [2018-09-21 18:23:30,962 INFO L226 Difference]: Without dead ends: 150 [2018-09-21 18:23:30,963 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:23:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-09-21 18:23:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-09-21 18:23:30,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-09-21 18:23:30,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 185 transitions. [2018-09-21 18:23:30,975 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 185 transitions. Word has length 42 [2018-09-21 18:23:30,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:30,976 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 185 transitions. [2018-09-21 18:23:30,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:23:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 185 transitions. [2018-09-21 18:23:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:30,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:30,980 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] [2018-09-21 18:23:30,980 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:30,980 INFO L82 PathProgramCache]: Analyzing trace with hash -957616091, now seen corresponding path program 1 times [2018-09-21 18:23:30,980 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:30,981 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 [2018-09-21 18:23:30,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:31,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:31,129 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 [2018-09-21 18:23:31,144 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 [2018-09-21 18:23:31,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,172 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:31,235 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 [2018-09-21 18:23:31,239 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 [2018-09-21 18:23:31,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:31,247 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:31,539 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:31,559 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:31,559 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:23:31,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:23:31,562 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:23:31,562 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:31,562 INFO L87 Difference]: Start difference. First operand 150 states and 185 transitions. Second operand 9 states. [2018-09-21 18:23:33,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:33,627 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2018-09-21 18:23:33,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:23:33,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:23:33,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:33,631 INFO L225 Difference]: With dead ends: 193 [2018-09-21 18:23:33,631 INFO L226 Difference]: Without dead ends: 144 [2018-09-21 18:23:33,632 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:23:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-09-21 18:23:33,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-09-21 18:23:33,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-09-21 18:23:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 174 transitions. [2018-09-21 18:23:33,647 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 174 transitions. Word has length 42 [2018-09-21 18:23:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:33,648 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 174 transitions. [2018-09-21 18:23:33,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 174 transitions. [2018-09-21 18:23:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:23:33,649 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:33,650 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] [2018-09-21 18:23:33,650 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:33,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1367585927, now seen corresponding path program 1 times [2018-09-21 18:23:33,652 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:33,653 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 [2018-09-21 18:23:33,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:33,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:33,818 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 [2018-09-21 18:23:33,824 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 [2018-09-21 18:23:33,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,840 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:33,863 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 [2018-09-21 18:23:33,867 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 [2018-09-21 18:23:33,867 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,870 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,872 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:33,873 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:34,035 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:34,050 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:34,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:23:34,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:23:34,051 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:23:34,052 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:34,053 INFO L87 Difference]: Start difference. First operand 144 states and 174 transitions. Second operand 9 states. [2018-09-21 18:23:35,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:35,599 INFO L93 Difference]: Finished difference Result 140 states and 170 transitions. [2018-09-21 18:23:35,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:23:35,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-21 18:23:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:35,601 INFO L225 Difference]: With dead ends: 140 [2018-09-21 18:23:35,601 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:23:35,602 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:23:35,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:23:35,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:23:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:23:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:23:35,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-09-21 18:23:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:35,603 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:23:35,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:23:35,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:23:35,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:23:35 BoogieIcfgContainer [2018-09-21 18:23:35,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:23:35,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:23:35,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:23:35,609 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:23:35,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:08" (3/4) ... [2018-09-21 18:23:35,614 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:23:35,620 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:23:35,620 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:23:35,620 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:23:35,621 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:23:35,621 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:23:35,638 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:23:35,639 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:23:35,641 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:23:35,782 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:23:35,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:23:35,787 INFO L168 Benchmark]: Toolchain (without parser) took 43781.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 951.9 MB in the beginning and 1.0 GB in the end (delta: -58.5 MB). Peak memory consumption was 143.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:35,788 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:35,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.80 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. [2018-09-21 18:23:35,790 INFO L168 Benchmark]: Boogie Preprocessor took 89.87 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. [2018-09-21 18:23:35,790 INFO L168 Benchmark]: RCFGBuilder took 15811.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:35,791 INFO L168 Benchmark]: TraceAbstraction took 27139.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:35,791 INFO L168 Benchmark]: Witness Printer took 176.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:35,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 556.80 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 89.87 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 15811.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27139.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. * Witness Printer took 176.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 230]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. SAFE Result, 27.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 22.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1086 SDtfs, 1434 SDslu, 4570 SDs, 0 SdLazy, 780 SolverSat, 69 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 219 ConstructedInterpolants, 45 QuantifiedInterpolants, 83362 SizeOfPredicates, 42 NumberOfNonLiveVariables, 649 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...