/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0621b_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/double_req_bl_0621b_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 bf0ba25fe26682d00fcbd742510a570b9ca53290 --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/double_req_bl_0621b_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 bf0ba25fe26682d00fcbd742510a570b9ca53290 --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 17:46:55,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:46:55,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:46:55,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:46:55,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:46:55,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:46:55,594 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:46:55,596 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:46:55,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:46:55,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:46:55,603 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:46:55,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:46:55,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:46:55,608 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:46:55,609 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:46:55,610 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:46:55,619 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:46:55,621 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:46:55,623 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:46:55,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:46:55,631 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:46:55,632 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:46:55,636 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:46:55,637 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:46:55,637 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:46:55,640 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:46:55,641 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:46:55,642 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:46:55,642 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:46:55,649 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:46:55,649 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:46:55,650 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:46:55,650 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:46:55,650 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:46:55,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:46:55,655 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:46:55,656 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:46:55,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:46:55,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:46:55,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:46:55,672 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:46:55,673 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:46:55,673 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:46:55,674 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:46:55,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:46:55,674 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:46:55,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:46:55,675 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:46:55,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:46:55,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:46:55,676 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:46:55,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:46:55,676 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:46:55,677 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:46:55,677 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:46:55,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:46:55,677 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:46:55,677 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:46:55,677 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:46:55,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:46:55,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:46:55,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:46:55,678 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:46:55,680 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:46:55,680 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:46:55,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:46:55,680 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 -> bf0ba25fe26682d00fcbd742510a570b9ca53290 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 17:46:55,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:46:55,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:46:55,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:46:55,757 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:46:55,757 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:46:55,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:46:56,115 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b391b86/07c4f49962d74bd482fc383f1b636374/FLAGb8eb4ee59 [2018-09-21 17:46:56,310 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:46:56,311 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:46:56,320 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b391b86/07c4f49962d74bd482fc383f1b636374/FLAGb8eb4ee59 [2018-09-21 17:46:56,338 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b391b86/07c4f49962d74bd482fc383f1b636374 [2018-09-21 17:46:56,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:46:56,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:46:56,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:46:56,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:46:56,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:46:56,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdd842b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56, skipping insertion in model container [2018-09-21 17:46:56,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,369 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:46:56,653 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:46:56,688 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:46:56,723 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:46:56,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56 WrapperNode [2018-09-21 17:46:56,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:46:56,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:46:56,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:46:56,773 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:46:56,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (1/1) ... [2018-09-21 17:46:56,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:46:56,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:46:56,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:46:56,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:46:56,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (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 17:46:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:46:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:46:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:46:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:46:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:46:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:46:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:46:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:46:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:46:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:46:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:46:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:46:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:46:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:46:57,813 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:46:57,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:46:57 BoogieIcfgContainer [2018-09-21 17:46:57,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:46:57,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:46:57,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:46:57,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:46:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:46:56" (1/3) ... [2018-09-21 17:46:57,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c97b300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:46:57, skipping insertion in model container [2018-09-21 17:46:57,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:46:56" (2/3) ... [2018-09-21 17:46:57,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c97b300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:46:57, skipping insertion in model container [2018-09-21 17:46:57,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:46:57" (3/3) ... [2018-09-21 17:46:57,823 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:46:57,834 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:46:57,843 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:46:57,882 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:46:57,883 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:46:57,883 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:46:57,883 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:46:57,883 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:46:57,883 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:46:57,884 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:46:57,884 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:46:57,884 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:46:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-09-21 17:46:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:46:57,916 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:57,917 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:46:57,920 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:57,925 INFO L82 PathProgramCache]: Analyzing trace with hash 652954868, now seen corresponding path program 1 times [2018-09-21 17:46:57,928 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:46:57,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:46:57,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:46:57,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:57,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:46:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:58,112 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 17:46:58,115 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:58,116 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:46:58,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:46:58,133 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:46:58,133 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:46:58,136 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-09-21 17:46:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:58,158 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-09-21 17:46:58,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:46:58,159 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:46:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:58,172 INFO L225 Difference]: With dead ends: 81 [2018-09-21 17:46:58,172 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 17:46:58,174 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 17:46:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 17:46:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-21 17:46:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 17:46:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2018-09-21 17:46:58,221 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 18 [2018-09-21 17:46:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:58,222 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2018-09-21 17:46:58,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:46:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2018-09-21 17:46:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:46:58,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:58,223 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] [2018-09-21 17:46:58,224 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash 2090612603, now seen corresponding path program 1 times [2018-09-21 17:46:58,224 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:46:58,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:46:58,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:46:58,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:58,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:46:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:46:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:46:58,396 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:46:58,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:46:58 BoogieIcfgContainer [2018-09-21 17:46:58,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:46:58,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:46:58,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:46:58,436 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:46:58,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:46:57" (3/4) ... [2018-09-21 17:46:58,440 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:46:58,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:46:58,441 INFO L168 Benchmark]: Toolchain (without parser) took 2098.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -98.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:58,443 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:46:58,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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 17:46:58,444 INFO L168 Benchmark]: Boogie Preprocessor took 86.99 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:46:58,445 INFO L168 Benchmark]: RCFGBuilder took 953.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:58,446 INFO L168 Benchmark]: TraceAbstraction took 620.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:58,447 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:46:58,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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 86.99 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 953.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 620.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 145]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 141, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 144. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [\old(huge_atan)=6442450957, \old(one_atan)=6442450945, \old(pi)=6442450953, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L141] double x = -1.0 / 0.0; VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L142] CALL, EXPR atan_double(x) VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L69] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=6442450948, gh_u={6442450952:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L70] FCALL gh_u.value = (x) VAL [\old(x)=6442450948, gh_u={6442450952:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L71] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=6442450948, gh_u={6442450952:0}, gh_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L71] (hx) = gh_u.parts.msw VAL [\old(x)=6442450948, gh_u={6442450952:0}, gh_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L71] FCALL (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=6442450959, \old(x)=6442450948, gh_u={6442450952:0}, gh_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L72] COND FALSE !(0) VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L73] ix = hx & 0x7fffffff VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L74] COND FALSE !(ix >= 0x44100000) VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L88] COND TRUE ix < 0x3fdc0000 VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L89] COND TRUE ix < 0x3e200000 VAL [\old(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L90] COND TRUE huge_atan + x > one_atan [L91] RET return x; VAL [\old(x)=6442450948, \result=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L142] EXPR atan_double(x) VAL [atan_double(x)=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=6442450948] [L142] double res = atan_double(x); [L144] COND TRUE res != -pi_o_2 VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450948, x=6442450948] [L145] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450948, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 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=81occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:47:00,894 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:47:00,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:47:00,909 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:47:00,909 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:47:00,910 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:47:00,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:47:00,913 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:47:00,915 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:47:00,916 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:47:00,917 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:47:00,918 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:47:00,919 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:47:00,920 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:47:00,921 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:47:00,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:47:00,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:47:00,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:47:00,927 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:47:00,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:47:00,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:47:00,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:47:00,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:47:00,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:47:00,935 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:47:00,936 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:47:00,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:47:00,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:47:00,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:47:00,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:47:00,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:47:00,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:47:00,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:47:00,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:47:00,943 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:47:00,944 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:47:00,944 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:47:00,965 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:47:00,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:47:00,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:47:00,967 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:47:00,967 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:47:00,967 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:47:00,968 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:47:00,968 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:47:00,968 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:47:00,968 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:47:00,968 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:47:00,969 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:47:00,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:47:00,969 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:47:00,969 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:47:00,969 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:47:00,970 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:47:00,970 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:47:00,970 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:47:00,970 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:47:00,970 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:47:00,970 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:47:00,971 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:47:00,971 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:47:00,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:47:00,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:47:00,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:47:00,972 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:47:00,972 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:47:00,972 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:47:00,972 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:47:00,972 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 -> bf0ba25fe26682d00fcbd742510a570b9ca53290 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 17:47:01,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:47:01,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:47:01,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:47:01,055 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:47:01,056 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:47:01,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:47:01,418 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96877fef1/da7288f0236a45d8b88e4ab5466c148c/FLAGbe10d5d3b [2018-09-21 17:47:01,596 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:47:01,597 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:47:01,608 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96877fef1/da7288f0236a45d8b88e4ab5466c148c/FLAGbe10d5d3b [2018-09-21 17:47:01,632 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96877fef1/da7288f0236a45d8b88e4ab5466c148c [2018-09-21 17:47:01,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:47:01,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:47:01,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:47:01,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:47:01,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:47:01,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:47:01" (1/1) ... [2018-09-21 17:47:01,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e222f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:01, skipping insertion in model container [2018-09-21 17:47:01,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:47:01" (1/1) ... [2018-09-21 17:47:01,675 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:47:01,953 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:47:01,979 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:47:02,052 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:47:02,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02 WrapperNode [2018-09-21 17:47:02,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:47:02,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:47:02,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:47:02,121 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:47:02,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (1/1) ... [2018-09-21 17:47:02,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:47:02,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:47:02,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:47:02,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:47:02,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (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 17:47:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:47:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:47:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:47:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:47:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:47:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:47:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:47:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:47:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:47:02,696 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:02,744 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:02,816 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:21,599 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:21,615 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:21,642 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:21,679 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:47:22,438 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:47:22,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:47:22 BoogieIcfgContainer [2018-09-21 17:47:22,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:47:22,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:47:22,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:47:22,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:47:22,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:47:01" (1/3) ... [2018-09-21 17:47:22,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3152d182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:47:22, skipping insertion in model container [2018-09-21 17:47:22,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:47:02" (2/3) ... [2018-09-21 17:47:22,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3152d182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:47:22, skipping insertion in model container [2018-09-21 17:47:22,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:47:22" (3/3) ... [2018-09-21 17:47:22,449 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0621b_true-unreach-call.c [2018-09-21 17:47:22,460 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:47:22,471 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:47:22,514 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:47:22,514 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:47:22,516 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:47:22,516 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:47:22,516 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:47:22,516 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:47:22,517 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:47:22,517 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:47:22,517 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:47:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-09-21 17:47:22,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:47:22,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:47:22,558 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:47:22,564 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:47:22,570 INFO L82 PathProgramCache]: Analyzing trace with hash 652954868, now seen corresponding path program 1 times [2018-09-21 17:47:22,575 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:47:22,575 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 17:47:22,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:47:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:47:22,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:47:22,771 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 17:47:22,771 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:47:22,795 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:47:22,795 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:47:22,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:47:22,819 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:47:22,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:47:22,823 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-09-21 17:47:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:47:22,849 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-09-21 17:47:22,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:47:22,851 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:47:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:47:22,865 INFO L225 Difference]: With dead ends: 81 [2018-09-21 17:47:22,866 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 17:47:22,868 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:47:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 17:47:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-21 17:47:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 17:47:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2018-09-21 17:47:22,920 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 18 [2018-09-21 17:47:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:47:22,920 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2018-09-21 17:47:22,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:47:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2018-09-21 17:47:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:47:22,923 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:47:22,923 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] [2018-09-21 17:47:22,924 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:47:22,924 INFO L82 PathProgramCache]: Analyzing trace with hash 2090612603, now seen corresponding path program 1 times [2018-09-21 17:47:22,925 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:47:22,926 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 17:47:22,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:47:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:47:23,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:47:23,229 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 14 treesize of output 11 [2018-09-21 17:47:23,253 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 11 treesize of output 10 [2018-09-21 17:47:23,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:47:23,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:47:23,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:47:23,370 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:47:23,498 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 20 treesize of output 16 [2018-09-21 17:47:23,516 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 16 treesize of output 4 [2018-09-21 17:47:23,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:47:23,530 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:47:23,587 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 17:47:23,587 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:47:23,973 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 17:47:23,974 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:47:23,987 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:47:23,988 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:47:23,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:47:23,990 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:47:23,990 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:47:23,990 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand 9 states. [2018-09-21 17:47:24,803 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:47:25,465 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 17:47:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:47:46,853 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2018-09-21 17:47:47,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:47:47,248 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 17:47:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:47:47,252 INFO L225 Difference]: With dead ends: 83 [2018-09-21 17:47:47,252 INFO L226 Difference]: Without dead ends: 81 [2018-09-21 17:47:47,254 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 17:47:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-21 17:47:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2018-09-21 17:47:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 17:47:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2018-09-21 17:47:47,268 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 28 [2018-09-21 17:47:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:47:47,268 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2018-09-21 17:47:47,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:47:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2018-09-21 17:47:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 17:47:47,270 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:47:47,271 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] [2018-09-21 17:47:47,271 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:47:47,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1110976039, now seen corresponding path program 1 times [2018-09-21 17:47:47,272 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:47:47,272 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:47:47,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:47:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:47:51,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:47:51,621 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 14 treesize of output 11 [2018-09-21 17:47:51,628 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 11 treesize of output 10 [2018-09-21 17:47:51,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:47:51,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:47:51,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:47:51,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:47:51,722 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 20 treesize of output 16 [2018-09-21 17:47:51,728 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 16 treesize of output 4 [2018-09-21 17:47:51,728 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:47:51,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:47:51,744 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 17:47:51,744 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:47:51,993 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 17:47:51,993 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:47:52,068 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:47:52,068 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:47:52,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:47:52,069 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:47:52,069 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:47:52,069 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand 9 states. [2018-09-21 17:47:52,670 WARN L178 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:47:53,314 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:48:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:48:16,117 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2018-09-21 17:48:16,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:48:16,509 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 17:48:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:48:16,511 INFO L225 Difference]: With dead ends: 86 [2018-09-21 17:48:16,511 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 17:48:16,511 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 17:48:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 17:48:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-09-21 17:48:16,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 17:48:16,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2018-09-21 17:48:16,520 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 30 [2018-09-21 17:48:16,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:48:16,520 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2018-09-21 17:48:16,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:48:16,520 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2018-09-21 17:48:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 17:48:16,521 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:48:16,522 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] [2018-09-21 17:48:16,522 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:48:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1277129167, now seen corresponding path program 1 times [2018-09-21 17:48:16,523 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:48:16,523 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 17:48:16,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:48:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:48:16,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:48:16,720 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 14 treesize of output 11 [2018-09-21 17:48:16,727 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 11 treesize of output 10 [2018-09-21 17:48:16,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:48:16,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:48:16,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:48:16,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:48:17,063 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 20 treesize of output 16 [2018-09-21 17:48:17,073 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 16 treesize of output 4 [2018-09-21 17:48:17,074 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,217 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 17:48:17,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:48:17,477 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 12 treesize of output 9 [2018-09-21 17:48:17,490 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 9 treesize of output 8 [2018-09-21 17:48:17,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,496 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:48:17,525 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-21 17:48:17,611 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 16 treesize of output 12 [2018-09-21 17:48:17,616 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 12 treesize of output 4 [2018-09-21 17:48:17,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,621 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:48:17,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:48:17,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:29 [2018-09-21 17:48:18,156 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 17:48:18,156 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:48:18,174 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:48:18,175 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 17:48:18,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 17:48:18,176 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 17:48:18,176 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-09-21 17:48:18,176 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 12 states. [2018-09-21 17:48:19,420 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:48:21,022 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-09-21 17:48:21,592 WARN L178 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-21 17:48:23,744 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-09-21 17:48:24,284 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-21 17:48:24,666 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-21 17:48:45,496 WARN L178 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-09-21 17:49:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:49:44,885 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2018-09-21 17:49:44,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-21 17:49:44,981 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-09-21 17:49:44,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:49:44,983 INFO L225 Difference]: With dead ends: 78 [2018-09-21 17:49:44,983 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 17:49:44,984 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=103, Invalid=353, Unknown=6, NotChecked=0, Total=462 [2018-09-21 17:49:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 17:49:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-09-21 17:49:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 17:49:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-09-21 17:49:44,994 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 36 [2018-09-21 17:49:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:49:44,994 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-09-21 17:49:44,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 17:49:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-09-21 17:49:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 17:49:44,997 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:49:44,997 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 17:49:44,997 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:49:44,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1451358020, now seen corresponding path program 1 times [2018-09-21 17:49:44,998 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:49:44,998 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 17:49:45,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:49:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:49:45,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:49:47,211 INFO L303 Elim1Store]: Index analysis took 2030 ms [2018-09-21 17:49:47,212 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-09-21 17:49:50,519 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:49:50,524 INFO L303 Elim1Store]: Index analysis took 3310 ms [2018-09-21 17:49:50,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 36 [2018-09-21 17:49:54,556 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_2 (_ bv1 32)) (select v_arrayElimArr_2 (_ bv0 32))) [2018-09-21 17:49:54,557 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:49:56,567 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_2 (_ bv1 32)) ((_ to_fp 11 53) RNE (/ 34758277578077496129.0 2500000000000000000000000000000000000.0))) [2018-09-21 17:49:56,568 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:49:58,578 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= ((_ to_fp 11 53) RNE (/ 34758277578077496129.0 2500000000000000000000000000000000000.0)) (select v_arrayElimArr_2 (_ bv0 32))) [2018-09-21 17:49:58,579 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:49:58,583 INFO L303 Elim1Store]: Index analysis took 8057 ms [2018-09-21 17:49:58,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2018-09-21 17:50:02,626 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_3 (_ bv1 32)) (select v_arrayElimArr_3 (_ bv0 32))) [2018-09-21 17:50:02,627 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:04,633 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_3 (_ bv1 32)) (select v_arrayElimArr_3 (_ bv2 32))) [2018-09-21 17:50:04,642 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:06,646 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= ((_ to_fp 11 53) RNE (/ 612323399573676603587.0 10000000000000000000000000000000000000.0)) (select v_arrayElimArr_3 (_ bv1 32))) [2018-09-21 17:50:06,647 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:08,662 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_3 (_ bv2 32)) (select v_arrayElimArr_3 (_ bv0 32))) [2018-09-21 17:50:08,664 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:08,815 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:10,086 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:10,090 INFO L303 Elim1Store]: Index analysis took 11502 ms [2018-09-21 17:50:10,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 101 [2018-09-21 17:50:10,092 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:26,520 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:33,872 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:37,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:42,480 INFO L303 Elim1Store]: Index analysis took 209 ms [2018-09-21 17:50:42,482 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-09-21 17:50:42,703 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:42,707 INFO L303 Elim1Store]: Index analysis took 223 ms [2018-09-21 17:50:42,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 36 [2018-09-21 17:50:42,831 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:42,916 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:42,974 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:42,977 INFO L303 Elim1Store]: Index analysis took 268 ms [2018-09-21 17:50:42,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2018-09-21 17:50:43,043 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,071 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,093 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,119 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,136 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,164 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:43,168 INFO L303 Elim1Store]: Index analysis took 185 ms [2018-09-21 17:50:43,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 101 [2018-09-21 17:50:43,170 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:43,390 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:43,506 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:43,626 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:43,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:43,872 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:52, output treesize:62 [2018-09-21 17:50:44,148 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-21 17:50:45,803 WARN L178 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:50:45,864 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,876 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,886 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,893 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,899 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,909 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:45,912 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-09-21 17:50:45,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2018-09-21 17:50:45,916 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:46,247 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,250 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,252 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,254 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,257 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,259 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:50:46,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2018-09-21 17:50:46,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:46,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:46,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:17 [2018-09-21 17:50:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:50:46,472 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:50:46,484 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:50:46,485 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:50:46,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:50:46,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:50:46,486 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:50:46,486 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 6 states. [2018-09-21 17:50:53,872 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:50:54,641 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:50:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:50:59,413 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2018-09-21 17:50:59,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:50:59,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-09-21 17:50:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:50:59,415 INFO L225 Difference]: With dead ends: 80 [2018-09-21 17:50:59,415 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 17:50:59,416 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:50:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 17:50:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-09-21 17:50:59,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 17:50:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2018-09-21 17:50:59,422 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 37 [2018-09-21 17:50:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:50:59,422 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2018-09-21 17:50:59,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:50:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2018-09-21 17:50:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 17:50:59,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:50:59,424 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 17:50:59,424 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:50:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1479987171, now seen corresponding path program 1 times [2018-09-21 17:50:59,425 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:50:59,425 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 17:50:59,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:50:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:50:59,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:50:59,655 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 14 treesize of output 11 [2018-09-21 17:50:59,661 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 11 treesize of output 10 [2018-09-21 17:50:59,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:59,669 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:59,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:50:59,700 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:50:59,743 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 20 treesize of output 16 [2018-09-21 17:50:59,749 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 16 treesize of output 4 [2018-09-21 17:50:59,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:50:59,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:50:59,764 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 17:50:59,764 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:50:59,949 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 17:50:59,949 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:50:59,965 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:50:59,966 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 17:50:59,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 17:50:59,966 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 17:50:59,966 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:50:59,968 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand 8 states. [2018-09-21 17:51:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:51:19,818 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-09-21 17:51:19,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:51:19,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-09-21 17:51:19,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:51:19,821 INFO L225 Difference]: With dead ends: 76 [2018-09-21 17:51:19,822 INFO L226 Difference]: Without dead ends: 62 [2018-09-21 17:51:19,822 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 17:51:19,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-21 17:51:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-21 17:51:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-21 17:51:19,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-09-21 17:51:19,828 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 37 [2018-09-21 17:51:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:51:19,829 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-09-21 17:51:19,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 17:51:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-09-21 17:51:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 17:51:19,832 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:51:19,832 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:51:19,833 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:51:19,833 INFO L82 PathProgramCache]: Analyzing trace with hash -339391493, now seen corresponding path program 1 times [2018-09-21 17:51:19,833 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:51:19,834 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 17:51:19,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:51:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:51:25,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:51:25,307 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 14 treesize of output 11 [2018-09-21 17:51:25,313 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 11 treesize of output 10 [2018-09-21 17:51:25,314 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:51:25,322 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:51:25,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:51:25,338 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:51:25,385 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 20 treesize of output 16 [2018-09-21 17:51:25,390 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 16 treesize of output 4 [2018-09-21 17:51:25,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:51:25,411 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:51:25,422 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 17:51:25,423 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:51:25,649 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 17:51:25,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:51:25,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:51:25,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:51:25,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:51:25,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:51:25,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:51:25,752 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 9 states. [2018-09-21 17:51:26,683 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:51:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:51:58,750 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2018-09-21 17:51:58,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:51:58,751 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-09-21 17:51:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:51:58,752 INFO L225 Difference]: With dead ends: 74 [2018-09-21 17:51:58,752 INFO L226 Difference]: Without dead ends: 61 [2018-09-21 17:51:58,753 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 17:51:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-21 17:51:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-21 17:51:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-21 17:51:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2018-09-21 17:51:58,759 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 58 [2018-09-21 17:51:58,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:51:58,760 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2018-09-21 17:51:58,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:51:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2018-09-21 17:51:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 17:51:58,763 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:51:58,763 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:51:58,764 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:51:58,765 INFO L82 PathProgramCache]: Analyzing trace with hash -856544517, now seen corresponding path program 1 times [2018-09-21 17:51:58,765 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:51:58,765 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 17:51:58,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:04,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:52:04,125 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 14 treesize of output 11 [2018-09-21 17:52:04,133 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 11 treesize of output 10 [2018-09-21 17:52:04,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:04,139 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:04,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:04,157 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:52:04,212 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 20 treesize of output 16 [2018-09-21 17:52:04,232 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 16 treesize of output 4 [2018-09-21 17:52:04,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:04,244 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:04,255 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 17:52:04,256 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:52:04,493 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 17:52:04,494 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:52:04,587 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:04,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:52:04,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:52:04,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:52:04,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:52:04,588 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 9 states. [2018-09-21 17:52:05,588 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:52:06,665 WARN L178 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:52:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:52:18,524 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-09-21 17:52:18,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:52:18,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-09-21 17:52:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:52:18,526 INFO L225 Difference]: With dead ends: 57 [2018-09-21 17:52:18,526 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:52:18,527 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 17:52:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:52:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:52:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:52:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:52:18,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-09-21 17:52:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:52:18,530 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:52:18,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:52:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:52:18,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:52:18,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:52:18 BoogieIcfgContainer [2018-09-21 17:52:18,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:52:18,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:52:18,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:52:18,537 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:52:18,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:47:22" (3/4) ... [2018-09-21 17:52:18,541 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:52:18,548 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 17:52:18,549 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:52:18,549 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2018-09-21 17:52:18,549 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:52:18,558 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-09-21 17:52:18,559 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-21 17:52:18,559 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 17:52:18,654 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:52:18,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:52:18,656 INFO L168 Benchmark]: Toolchain (without parser) took 317018.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 951.8 MB in the beginning and 850.5 MB in the end (delta: 101.3 MB). Peak memory consumption was 304.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:18,656 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 17:52:18,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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 17:52:18,658 INFO L168 Benchmark]: Boogie Preprocessor took 61.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:52:18,658 INFO L168 Benchmark]: RCFGBuilder took 20255.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:18,659 INFO L168 Benchmark]: TraceAbstraction took 296095.06 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 858.2 MB in the end (delta: 244.7 MB). Peak memory consumption was 301.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:18,659 INFO L168 Benchmark]: Witness Printer took 118.39 ms. Allocated memory is still 1.2 GB. Free memory was 858.2 MB in the beginning and 850.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:18,665 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 478.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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 61.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 20255.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296095.06 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 858.2 MB in the end (delta: 244.7 MB). Peak memory consumption was 301.8 MB. Max. memory is 11.5 GB. * Witness Printer took 118.39 ms. Allocated memory is still 1.2 GB. Free memory was 858.2 MB in the beginning and 850.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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 5 procedures, 81 locations, 1 error locations. SAFE Result, 296.0s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 214.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 520 SDtfs, 445 SDslu, 2251 SDs, 0 SdLazy, 739 SolverSat, 40 SolverUnsat, 63 SolverUnknown, 0 SolverNotchecked, 173.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 30.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 8 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 13.9s SatisfiabilityAnalysisTime, 66.9s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 294 ConstructedInterpolants, 111 QuantifiedInterpolants, 163810 SizeOfPredicates, 56 NumberOfNonLiveVariables, 813 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...