/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663b_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 0cca6d33f0772631e27f925c9516a89b4af2326a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0663b_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 0cca6d33f0772631e27f925c9516a89b4af2326a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 14:39:16,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:39:16,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:39:16,659 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:39:16,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:39:16,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:39:16,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:39:16,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:39:16,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:39:16,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:39:16,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:39:16,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:39:16,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:39:16,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:39:16,673 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:39:16,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:39:16,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:39:16,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:39:16,679 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:39:16,681 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:39:16,682 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:39:16,683 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:39:16,686 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:39:16,687 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:39:16,687 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:39:16,688 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:39:16,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:39:16,690 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:39:16,691 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:39:16,693 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:39:16,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:39:16,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:39:16,694 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:39:16,695 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:39:16,696 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:39:16,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:39:16,697 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:39:16,713 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:39:16,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:39:16,715 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:39:16,715 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:39:16,716 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:39:16,716 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:39:16,716 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:39:16,716 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:39:16,716 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:39:16,717 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:39:16,717 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:39:16,717 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:39:16,717 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:39:16,717 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:39:16,719 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:39:16,719 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:39:16,719 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:39:16,719 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:39:16,719 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:39:16,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:39:16,720 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:39:16,720 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:39:16,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:39:16,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:39:16,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:39:16,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:39:16,721 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:39:16,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:39:16,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:39:16,723 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 -> 0cca6d33f0772631e27f925c9516a89b4af2326a [2018-09-20 14:39:16,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:39:16,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:39:16,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:39:16,806 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:39:16,806 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:39:16,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:17,160 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca8c9495/d084c78d8ed14a8782456549043dbed4/FLAG30712836b [2018-09-20 14:39:17,426 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:39:17,427 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:17,438 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca8c9495/d084c78d8ed14a8782456549043dbed4/FLAG30712836b [2018-09-20 14:39:17,457 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca8c9495/d084c78d8ed14a8782456549043dbed4 [2018-09-20 14:39:17,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:39:17,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:39:17,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:39:17,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:39:17,482 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:39:17,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:17,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e4bc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17, skipping insertion in model container [2018-09-20 14:39:17,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:17,501 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:39:17,839 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:39:17,864 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:39:17,914 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:39:17,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17 WrapperNode [2018-09-20 14:39:17,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:39:17,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:39:17,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:39:17,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:39:17,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:17,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:17,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:17,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:18,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:18,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:18,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... [2018-09-20 14:39:18,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:39:18,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:39:18,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:39:18,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:39:18,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:39:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 14:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-20 14:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-20 14:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:39:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 14:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 14:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 14:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 14:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 14:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 14:39:19,517 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:39:19,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:39:19 BoogieIcfgContainer [2018-09-20 14:39:19,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:39:19,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:39:19,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:39:19,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:39:19,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:39:17" (1/3) ... [2018-09-20 14:39:19,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdc4d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:39:19, skipping insertion in model container [2018-09-20 14:39:19,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:17" (2/3) ... [2018-09-20 14:39:19,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdc4d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:39:19, skipping insertion in model container [2018-09-20 14:39:19,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:39:19" (3/3) ... [2018-09-20 14:39:19,529 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:19,538 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:39:19,552 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:39:19,605 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:39:19,606 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:39:19,606 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:39:19,606 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:39:19,606 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:39:19,606 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:39:19,607 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:39:19,607 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:39:19,607 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:39:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-09-20 14:39:19,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 14:39:19,642 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:39:19,643 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:39:19,646 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:39:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1279955196, now seen corresponding path program 1 times [2018-09-20 14:39:19,654 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:39:19,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:39:19,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:39:19,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:39:19,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:39:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:39:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:39:19,862 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:39:19,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:39:19,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:39:19,878 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:39:19,879 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:39:19,881 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2018-09-20 14:39:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:39:19,929 INFO L93 Difference]: Finished difference Result 349 states and 466 transitions. [2018-09-20 14:39:19,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:39:19,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 14:39:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:39:19,945 INFO L225 Difference]: With dead ends: 349 [2018-09-20 14:39:19,945 INFO L226 Difference]: Without dead ends: 174 [2018-09-20 14:39:19,952 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:39:19,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-09-20 14:39:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-09-20 14:39:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-09-20 14:39:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2018-09-20 14:39:20,012 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 19 [2018-09-20 14:39:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:39:20,013 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2018-09-20 14:39:20,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:39:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2018-09-20 14:39:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-20 14:39:20,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:39:20,017 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] [2018-09-20 14:39:20,017 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:39:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1584750586, now seen corresponding path program 1 times [2018-09-20 14:39:20,018 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:39:20,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:39:20,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:39:20,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:39:20,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:39:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:39:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:39:20,258 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:39:20,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:39:20 BoogieIcfgContainer [2018-09-20 14:39:20,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:39:20,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:39:20,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:39:20,349 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:39:20,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:39:19" (3/4) ... [2018-09-20 14:39:20,356 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:39:20,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:39:20,357 INFO L168 Benchmark]: Toolchain (without parser) took 2892.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -104.8 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:39:20,361 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:39:20,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.76 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:39:20,363 INFO L168 Benchmark]: Boogie Preprocessor took 96.63 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:39:20,365 INFO L168 Benchmark]: RCFGBuilder took 1465.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:39:20,367 INFO L168 Benchmark]: TraceAbstraction took 829.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-09-20 14:39:20,367 INFO L168 Benchmark]: Witness Printer took 7.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:39:20,373 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 482.76 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 96.63 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1465.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 829.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Witness Printer took 7.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 260]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. 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; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [\old(huge_atan)=6442450959, \old(one_atan)=6442450946, \old(pi)=6442450953, \old(pi_lo_atan2)=6442450967, \old(pi_o_2)=6442450947, \old(pi_o_4)=6442450951, \old(tiny_atan2)=6442450964, \old(zero_atan2)=6442450962, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L251] double x = 0.0; [L252] double y = __VERIFIER_nondet_double(); [L254] COND TRUE y > 0.0 VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L256] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L148] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L149] FCALL ew_u.value = (x) VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L150] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L150] (hx) = ew_u.parts.msw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L150] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=6442450965, \old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L151] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L151] (lx) = ew_u.parts.lsw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L151] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=6442450963, \old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L152] COND FALSE !(0) VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L153] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L155] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L156] FCALL ew_u.value = (y) VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L157] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L157] (hy) = ew_u.parts.msw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L157] FCALL (hy) = ew_u.parts.msw VAL [(hy) = ew_u.parts.msw=6442450960, \old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.msw=6442450945, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L158] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L158] (ly) = ew_u.parts.lsw VAL [\old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L158] FCALL (ly) = ew_u.parts.lsw VAL [(ly) = ew_u.parts.lsw=6442450968, \old(x)=0, \old(y)=6442450961, ew_u={6442450950:0}, ew_u.parts.lsw=6442450949, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L159] COND FALSE !(0) VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L160] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] RET return x + y; VAL [\old(x)=0, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483647, hy=-2147483647, lx=6442450949, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L256] EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=6442450966, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != pi_o_2 VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450966, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] [L260] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450966, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=6442450961, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 179 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 219 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=179occurred 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 14:39:22,847 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:39:22,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:39:22,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:39:22,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:39:22,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:39:22,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:39:22,873 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:39:22,875 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:39:22,877 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:39:22,880 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:39:22,881 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:39:22,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:39:22,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:39:22,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:39:22,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:39:22,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:39:22,897 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:39:22,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:39:22,908 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:39:22,912 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:39:22,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:39:22,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:39:22,920 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:39:22,920 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:39:22,921 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:39:22,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:39:22,926 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:39:22,928 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:39:22,931 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:39:22,931 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:39:22,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:39:22,932 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:39:22,932 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:39:22,935 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:39:22,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:39:22,936 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:39:22,957 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:39:22,957 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:39:22,958 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:39:22,958 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:39:22,959 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:39:22,959 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:39:22,959 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:39:22,960 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:39:22,960 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:39:22,960 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:39:22,960 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:39:22,961 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:39:22,961 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:39:22,962 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:39:22,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:39:22,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:39:22,963 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:39:22,963 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:39:22,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:39:22,965 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:39:22,965 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:39:22,965 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:39:22,965 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:39:22,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:39:22,966 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:39:22,966 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:39:22,966 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 -> 0cca6d33f0772631e27f925c9516a89b4af2326a [2018-09-20 14:39:23,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:39:23,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:39:23,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:39:23,035 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:39:23,036 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:39:23,037 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:23,383 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02fb0706/58e4e801f78240d4b7e2409e2c9c18e8/FLAGc86f15c26 [2018-09-20 14:39:23,616 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:39:23,617 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:23,626 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02fb0706/58e4e801f78240d4b7e2409e2c9c18e8/FLAGc86f15c26 [2018-09-20 14:39:23,642 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02fb0706/58e4e801f78240d4b7e2409e2c9c18e8 [2018-09-20 14:39:23,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:39:23,649 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:39:23,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:39:23,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:39:23,657 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:39:23,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:39:23" (1/1) ... [2018-09-20 14:39:23,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348fd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:23, skipping insertion in model container [2018-09-20 14:39:23,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:39:23" (1/1) ... [2018-09-20 14:39:23,674 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:39:23,957 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:39:23,981 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:39:24,073 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:39:24,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24 WrapperNode [2018-09-20 14:39:24,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:39:24,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:39:24,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:39:24,135 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:39:24,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... [2018-09-20 14:39:24,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:39:24,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:39:24,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:39:24,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:39:24,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:39:24,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:39:24,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:39:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 14:39:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-20 14:39:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-20 14:39:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:39:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:39:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:39:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 14:39:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:39:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 14:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 14:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 14:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 14:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-20 14:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-20 14:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:39:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 14:39:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 14:39:24,765 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:24,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:24,824 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:24,875 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:24,896 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:24,925 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:27,656 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:27,683 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:27,728 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:28,368 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:28,381 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:28,401 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:43,691 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:43,709 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:43,730 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:43,740 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:39:47,531 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:39:47,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:39:47 BoogieIcfgContainer [2018-09-20 14:39:47,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:39:47,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:39:47,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:39:47,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:39:47,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:39:23" (1/3) ... [2018-09-20 14:39:47,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591c32fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:39:47, skipping insertion in model container [2018-09-20 14:39:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:39:24" (2/3) ... [2018-09-20 14:39:47,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591c32fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:39:47, skipping insertion in model container [2018-09-20 14:39:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:39:47" (3/3) ... [2018-09-20 14:39:47,546 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b_true-unreach-call.c [2018-09-20 14:39:47,557 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:39:47,567 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:39:47,620 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:39:47,621 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:39:47,621 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:39:47,621 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:39:47,621 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:39:47,621 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:39:47,622 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:39:47,622 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:39:47,622 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:39:47,649 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-09-20 14:39:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 14:39:47,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:39:47,659 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:39:47,662 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:39:47,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1279955196, now seen corresponding path program 1 times [2018-09-20 14:39:47,673 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:39:47,674 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 14:39:47,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:39:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:39:47,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:39:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:39:47,889 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:39:47,904 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:39:47,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:39:47,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:39:47,923 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:39:47,924 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:39:47,927 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2018-09-20 14:39:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:39:47,987 INFO L93 Difference]: Finished difference Result 349 states and 466 transitions. [2018-09-20 14:39:47,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:39:47,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 14:39:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:39:48,006 INFO L225 Difference]: With dead ends: 349 [2018-09-20 14:39:48,006 INFO L226 Difference]: Without dead ends: 174 [2018-09-20 14:39:48,013 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:39:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-09-20 14:39:48,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-09-20 14:39:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-09-20 14:39:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2018-09-20 14:39:48,080 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 19 [2018-09-20 14:39:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:39:48,080 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2018-09-20 14:39:48,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:39:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2018-09-20 14:39:48,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-20 14:39:48,083 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:39:48,084 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] [2018-09-20 14:39:48,084 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:39:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1584750586, now seen corresponding path program 1 times [2018-09-20 14:39:48,086 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:39:48,086 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 14:39:48,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:39:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:39:48,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:39:48,673 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 [2018-09-20 14:39:48,693 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 [2018-09-20 14:39:48,694 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:39:48,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:39:48,819 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. [2018-09-20 14:39:48,820 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 14:39:48,940 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 [2018-09-20 14:39:48,949 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 [2018-09-20 14:39:48,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:39:48,979 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:39:49,087 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. [2018-09-20 14:39:49,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 14:39:49,588 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:39:49,589 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:39:49,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 14:39:49,614 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:39:49,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 14:39:49,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:39:49,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:39:49,803 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. [2018-09-20 14:39:49,804 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:43 [2018-09-20 14:39:50,331 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:39:50,332 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:39:50,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 14:39:50,358 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:39:50,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 14:39:50,379 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:39:50,416 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:39:50,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-20 14:39:50,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:70 [2018-09-20 14:39:50,685 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 35 treesize of output 27 [2018-09-20 14:39:50,695 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:39:50,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 14:39:50,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:39:50,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:39:50,758 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. [2018-09-20 14:39:50,759 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:33 [2018-09-20 14:39:51,861 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-09-20 14:39:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:39:51,900 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:39:51,917 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:39:51,918 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-20 14:39:51,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-20 14:39:51,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-20 14:39:51,922 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-09-20 14:39:51,922 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand 16 states. [2018-09-20 14:39:53,055 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-20 14:39:53,465 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-20 14:39:54,747 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 14:39:55,477 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-20 14:39:55,960 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-20 14:39:56,482 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-20 14:39:57,010 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-20 14:39:57,652 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-20 14:39:58,528 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-20 14:39:59,246 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-20 14:39:59,640 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-20 14:40:00,020 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-20 14:40:01,899 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-09-20 14:40:20,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:40:20,204 INFO L93 Difference]: Finished difference Result 217 states and 265 transitions. [2018-09-20 14:40:20,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-20 14:40:20,208 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-09-20 14:40:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:40:20,213 INFO L225 Difference]: With dead ends: 217 [2018-09-20 14:40:20,213 INFO L226 Difference]: Without dead ends: 163 [2018-09-20 14:40:20,216 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2018-09-20 14:40:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-09-20 14:40:20,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-09-20 14:40:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-09-20 14:40:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 191 transitions. [2018-09-20 14:40:20,234 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 191 transitions. Word has length 45 [2018-09-20 14:40:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:40:20,235 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 191 transitions. [2018-09-20 14:40:20,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-20 14:40:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 191 transitions. [2018-09-20 14:40:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 14:40:20,238 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:40:20,238 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] [2018-09-20 14:40:20,238 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:40:20,239 INFO L82 PathProgramCache]: Analyzing trace with hash 66485668, now seen corresponding path program 1 times [2018-09-20 14:40:20,239 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:40:20,240 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 14:40:20,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:40:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:40:20,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:40:20,479 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:40:20,480 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:40:20,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 14:40:20,489 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:40:20,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 14:40:20,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:40:20,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:40:20,553 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. [2018-09-20 14:40:20,554 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 14:40:20,722 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:40:20,731 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:40:20,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 14:40:20,779 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:40:20,883 INFO L303 Elim1Store]: Index analysis took 148 ms [2018-09-20 14:40:20,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 14:40:20,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:40:20,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:40:21,004 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. [2018-09-20 14:40:21,004 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 14:40:21,089 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 35 treesize of output 27 [2018-09-20 14:40:21,105 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:40:21,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 14:40:21,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:40:21,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:40:21,140 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. [2018-09-20 14:40:21,140 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 14:40:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:40:21,468 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:40:21,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:40:21,482 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 14:40:21,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 14:40:21,483 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 14:40:21,483 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-20 14:40:21,483 INFO L87 Difference]: Start difference. First operand 163 states and 191 transitions. Second operand 11 states. [2018-09-20 14:40:23,991 WARN L178 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 14:40:36,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:40:36,292 INFO L93 Difference]: Finished difference Result 212 states and 251 transitions. [2018-09-20 14:40:36,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 14:40:36,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-09-20 14:40:36,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:40:36,297 INFO L225 Difference]: With dead ends: 212 [2018-09-20 14:40:36,297 INFO L226 Difference]: Without dead ends: 157 [2018-09-20 14:40:36,299 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 14:40:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-09-20 14:40:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-09-20 14:40:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-09-20 14:40:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 180 transitions. [2018-09-20 14:40:36,319 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 180 transitions. Word has length 50 [2018-09-20 14:40:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:40:36,319 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 180 transitions. [2018-09-20 14:40:36,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 14:40:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 180 transitions. [2018-09-20 14:40:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 14:40:36,322 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:40:36,322 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] [2018-09-20 14:40:36,322 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:40:36,323 INFO L82 PathProgramCache]: Analyzing trace with hash -52671134, now seen corresponding path program 1 times [2018-09-20 14:40:36,323 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:40:36,323 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 14:40:36,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:40:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:40:36,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:40:36,626 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 [2018-09-20 14:40:36,639 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 [2018-09-20 14:40:36,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:40:36,665 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:40:36,734 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. [2018-09-20 14:40:36,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:40:36,785 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 [2018-09-20 14:40:36,790 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 [2018-09-20 14:40:36,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:40:36,794 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:40:36,806 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. [2018-09-20 14:40:36,806 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:40:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:40:36,984 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:40:36,999 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:40:36,999 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 14:40:36,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 14:40:37,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 14:40:37,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 14:40:37,000 INFO L87 Difference]: Start difference. First operand 157 states and 180 transitions. Second operand 8 states. [2018-09-20 14:40:42,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:40:42,286 INFO L93 Difference]: Finished difference Result 165 states and 187 transitions. [2018-09-20 14:40:42,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-20 14:40:42,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2018-09-20 14:40:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:40:42,290 INFO L225 Difference]: With dead ends: 165 [2018-09-20 14:40:42,290 INFO L226 Difference]: Without dead ends: 157 [2018-09-20 14:40:42,292 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-20 14:40:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-09-20 14:40:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-09-20 14:40:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-09-20 14:40:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2018-09-20 14:40:42,309 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 50 [2018-09-20 14:40:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:40:42,311 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2018-09-20 14:40:42,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 14:40:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2018-09-20 14:40:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 14:40:42,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:40:42,312 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] [2018-09-20 14:40:42,314 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:40:42,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1722336228, now seen corresponding path program 1 times [2018-09-20 14:40:42,314 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:40:42,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 14:40:42,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:40:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:40:42,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:40:43,030 WARN L178 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:40:43,853 WARN L178 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:40:44,006 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 14:40:44,500 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 14:40:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:40:44,511 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:40:44,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:40:44,522 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 14:40:44,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:40:44,523 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:40:44,523 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-20 14:40:44,523 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand 7 states. [2018-09-20 14:40:55,471 WARN L178 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:03,256 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:41:09,068 INFO L93 Difference]: Finished difference Result 163 states and 183 transitions. [2018-09-20 14:41:09,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:41:09,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-09-20 14:41:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:41:09,073 INFO L225 Difference]: With dead ends: 163 [2018-09-20 14:41:09,073 INFO L226 Difference]: Without dead ends: 155 [2018-09-20 14:41:09,074 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-20 14:41:09,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-09-20 14:41:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-09-20 14:41:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-09-20 14:41:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 175 transitions. [2018-09-20 14:41:09,092 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 175 transitions. Word has length 50 [2018-09-20 14:41:09,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:41:09,093 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 175 transitions. [2018-09-20 14:41:09,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:41:09,094 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2018-09-20 14:41:09,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-20 14:41:09,095 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:41:09,095 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:41:09,095 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:41:09,095 INFO L82 PathProgramCache]: Analyzing trace with hash -808895176, now seen corresponding path program 1 times [2018-09-20 14:41:09,097 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:41:09,097 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) [2018-09-20 14:41:09,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 14:41:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:41:09,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:41:10,590 WARN L178 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:11,469 WARN L178 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:11,782 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 14:41:12,617 WARN L178 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 14:41:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:41:12,627 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:41:12,639 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:41:12,639 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 14:41:12,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:41:12,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:41:12,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-20 14:41:12,640 INFO L87 Difference]: Start difference. First operand 155 states and 175 transitions. Second operand 7 states. [2018-09-20 14:41:25,345 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:27,724 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:41:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:41:31,493 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2018-09-20 14:41:31,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:41:31,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-09-20 14:41:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:41:31,499 INFO L225 Difference]: With dead ends: 163 [2018-09-20 14:41:31,499 INFO L226 Difference]: Without dead ends: 155 [2018-09-20 14:41:31,499 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-20 14:41:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-09-20 14:41:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2018-09-20 14:41:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-09-20 14:41:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 172 transitions. [2018-09-20 14:41:31,520 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 172 transitions. Word has length 52 [2018-09-20 14:41:31,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:41:31,520 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 172 transitions. [2018-09-20 14:41:31,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:41:31,521 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 172 transitions. [2018-09-20 14:41:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-20 14:41:31,522 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:41:31,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:41:31,523 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:41:31,523 INFO L82 PathProgramCache]: Analyzing trace with hash 450754314, now seen corresponding path program 1 times [2018-09-20 14:41:31,525 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:41:31,525 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 14:41:31,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:41:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:41:31,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:41:33,104 WARN L178 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 14:41:37,373 WARN L178 SmtUtils]: Spent 3.41 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 14:41:38,095 WARN L178 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-20 14:41:38,763 WARN L178 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-20 14:41:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:41:38,776 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:41:38,789 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:41:38,789 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 14:41:38,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:41:38,790 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:41:38,790 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-20 14:41:38,790 INFO L87 Difference]: Start difference. First operand 153 states and 172 transitions. Second operand 7 states. [2018-09-20 14:42:00,519 WARN L178 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 14:42:03,359 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 14:42:05,423 WARN L178 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 14:42:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:42:12,386 INFO L93 Difference]: Finished difference Result 183 states and 205 transitions. [2018-09-20 14:42:12,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:42:12,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-09-20 14:42:12,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:42:12,389 INFO L225 Difference]: With dead ends: 183 [2018-09-20 14:42:12,389 INFO L226 Difference]: Without dead ends: 177 [2018-09-20 14:42:12,390 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-20 14:42:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-09-20 14:42:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 155. [2018-09-20 14:42:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-09-20 14:42:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 174 transitions. [2018-09-20 14:42:12,406 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 174 transitions. Word has length 53 [2018-09-20 14:42:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:42:12,406 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 174 transitions. [2018-09-20 14:42:12,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:42:12,406 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 174 transitions. [2018-09-20 14:42:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-20 14:42:12,408 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:42:12,408 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] [2018-09-20 14:42:12,408 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:42:12,408 INFO L82 PathProgramCache]: Analyzing trace with hash -2059390900, now seen corresponding path program 1 times [2018-09-20 14:42:12,408 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:42:12,409 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 [2018-09-20 14:42:12,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:42:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:42:12,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:42:12,578 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 [2018-09-20 14:42:12,584 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 [2018-09-20 14:42:12,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:12,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:12,603 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. [2018-09-20 14:42:12,604 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:42:12,641 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 [2018-09-20 14:42:12,646 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 [2018-09-20 14:42:12,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:12,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:12,660 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. [2018-09-20 14:42:12,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:42:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:42:13,455 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:42:13,466 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:42:13,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 14:42:13,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 14:42:13,467 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 14:42:13,467 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-20 14:42:13,468 INFO L87 Difference]: Start difference. First operand 155 states and 174 transitions. Second operand 11 states. [2018-09-20 14:42:15,820 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-20 14:42:16,284 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-20 14:42:17,962 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-09-20 14:42:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:42:25,400 INFO L93 Difference]: Finished difference Result 221 states and 246 transitions. [2018-09-20 14:42:25,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 14:42:25,403 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2018-09-20 14:42:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:42:25,405 INFO L225 Difference]: With dead ends: 221 [2018-09-20 14:42:25,405 INFO L226 Difference]: Without dead ends: 182 [2018-09-20 14:42:25,406 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-20 14:42:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-09-20 14:42:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 153. [2018-09-20 14:42:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-09-20 14:42:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 169 transitions. [2018-09-20 14:42:25,422 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 169 transitions. Word has length 54 [2018-09-20 14:42:25,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:42:25,423 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 169 transitions. [2018-09-20 14:42:25,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 14:42:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2018-09-20 14:42:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-20 14:42:25,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:42:25,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:42:25,424 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:42:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash -233480410, now seen corresponding path program 1 times [2018-09-20 14:42:25,427 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:42:25,427 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-20 14:42:25,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:42:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:42:25,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:42:26,000 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 [2018-09-20 14:42:26,025 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 [2018-09-20 14:42:26,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,043 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,107 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. [2018-09-20 14:42:26,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 14:42:26,201 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 [2018-09-20 14:42:26,225 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 [2018-09-20 14:42:26,225 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,288 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. [2018-09-20 14:42:26,289 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 14:42:26,492 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 [2018-09-20 14:42:26,510 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 [2018-09-20 14:42:26,510 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,617 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. [2018-09-20 14:42:26,617 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-20 14:42:26,731 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 [2018-09-20 14:42:26,738 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 [2018-09-20 14:42:26,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,745 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:26,775 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. [2018-09-20 14:42:26,776 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-20 14:42:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:42:27,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:42:27,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:42:27,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-20 14:42:27,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-20 14:42:27,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-20 14:42:27,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-20 14:42:27,727 INFO L87 Difference]: Start difference. First operand 153 states and 169 transitions. Second operand 14 states. [2018-09-20 14:42:32,832 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-20 14:42:33,379 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-20 14:42:36,938 WARN L178 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-09-20 14:42:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:42:44,691 INFO L93 Difference]: Finished difference Result 159 states and 174 transitions. [2018-09-20 14:42:44,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-20 14:42:44,694 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2018-09-20 14:42:44,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:42:44,696 INFO L225 Difference]: With dead ends: 159 [2018-09-20 14:42:44,696 INFO L226 Difference]: Without dead ends: 124 [2018-09-20 14:42:44,697 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2018-09-20 14:42:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-09-20 14:42:44,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-09-20 14:42:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-09-20 14:42:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2018-09-20 14:42:44,708 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 55 [2018-09-20 14:42:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:42:44,709 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2018-09-20 14:42:44,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-20 14:42:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2018-09-20 14:42:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-20 14:42:44,710 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:42:44,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:42:44,711 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:42:44,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1376327592, now seen corresponding path program 1 times [2018-09-20 14:42:44,712 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:42:44,712 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-20 14:42:44,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:42:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:42:45,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:42:45,860 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 [2018-09-20 14:42:45,878 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 [2018-09-20 14:42:45,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:45,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:45,912 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. [2018-09-20 14:42:45,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:42:45,967 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 [2018-09-20 14:42:45,973 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 [2018-09-20 14:42:45,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:45,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:45,987 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. [2018-09-20 14:42:45,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:42:46,105 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 16 treesize of output 13 [2018-09-20 14:42:46,122 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 13 treesize of output 12 [2018-09-20 14:42:46,123 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:42:46,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:42:46,232 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. [2018-09-20 14:42:46,232 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-20 14:42:46,341 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 58 treesize of output 44 [2018-09-20 14:42:46,349 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:42:46,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2018-09-20 14:42:46,356 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:42:46,370 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:42:46,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:42:46,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-09-20 14:42:49,316 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_21 (_ BitVec 32)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_26| (_ BitVec 64))) (and (= (fp.div RNE __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_26|) ((_ extract 62 52) |v_q#valueAsBitvector_26|) ((_ extract 51 0) |v_q#valueAsBitvector_26|))) (= |c___ieee754_atan2_#t~ret24| (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_26|) (_ bv2147483647 32)) v_arrayElimCell_21))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))))) is different from false [2018-09-20 14:42:56,545 WARN L797 $PredicateComparison]: unable to prove that (exists ((__ieee754_atan2_~y (_ FloatingPoint 11 53)) (|v___ieee754_atan2_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_26| (_ BitVec 64))) (= (fp.div RNE __ieee754_atan2_~y |v___ieee754_atan2_#in~x_BEFORE_CALL_2|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_26|) ((_ extract 62 52) |v_q#valueAsBitvector_26|) ((_ extract 51 0) |v_q#valueAsBitvector_26|)))) is different from false [2018-09-20 14:42:58,897 WARN L819 $PredicateComparison]: unable to prove that (exists ((__ieee754_atan2_~y (_ FloatingPoint 11 53)) (|v___ieee754_atan2_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_26| (_ BitVec 64))) (= (fp.div RNE __ieee754_atan2_~y |v___ieee754_atan2_#in~x_BEFORE_CALL_2|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_26|) ((_ extract 62 52) |v_q#valueAsBitvector_26|) ((_ extract 51 0) |v_q#valueAsBitvector_26|)))) is different from true [2018-09-20 14:43:00,871 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 [2018-09-20 14:43:00,878 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 [2018-09-20 14:43:00,878 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:43:00,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:43:00,901 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. [2018-09-20 14:43:00,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:43:01,091 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 [2018-09-20 14:43:01,107 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 [2018-09-20 14:43:01,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:43:01,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:43:01,211 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. [2018-09-20 14:43:01,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:43:04,341 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_21 (_ BitVec 32)) (|v_q#valueAsBitvector_27| (_ BitVec 64)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_26| (_ BitVec 64))) (and (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_26|) (_ bv2147483647 32)) v_arrayElimCell_21))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_q#valueAsBitvector_27|) ((_ extract 62 52) |v_q#valueAsBitvector_27|) ((_ extract 51 0) |v_q#valueAsBitvector_27|))) (= (fp.div RNE __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_26|) ((_ extract 62 52) |v_q#valueAsBitvector_26|) ((_ extract 51 0) |v_q#valueAsBitvector_26|))) (not (bvsge (bvand ((_ extract 63 32) |v_q#valueAsBitvector_27|) (_ bv2147483647 32)) (_ bv1141899264 32))))) is different from false [2018-09-20 14:43:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:43:04,385 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:43:04,415 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:43:04,415 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-20 14:43:04,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-20 14:43:04,416 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-20 14:43:04,416 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=275, Unknown=4, NotChecked=102, Total=420 [2018-09-20 14:43:04,416 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand 21 states. [2018-09-20 14:43:12,529 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 14:43:13,835 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-20 14:43:14,440 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-09-20 14:43:22,526 WARN L797 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_21 (_ BitVec 32)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_26| (_ BitVec 64))) (and (= (fp.div RNE __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_26|) ((_ extract 62 52) |v_q#valueAsBitvector_26|) ((_ extract 51 0) |v_q#valueAsBitvector_26|))) (= |c___ieee754_atan2_#t~ret24| (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_26|) (_ bv2147483647 32)) v_arrayElimCell_21))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))))) (= c___ieee754_atan2_~x |c___ieee754_atan2_#in~x|)) is different from false [2018-09-20 14:43:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:43:53,016 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2018-09-20 14:43:53,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-20 14:43:53,441 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 101 [2018-09-20 14:43:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:43:53,442 INFO L225 Difference]: With dead ends: 139 [2018-09-20 14:43:53,442 INFO L226 Difference]: Without dead ends: 128 [2018-09-20 14:43:53,443 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=161, Invalid=1182, Unknown=5, NotChecked=292, Total=1640 [2018-09-20 14:43:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-09-20 14:43:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2018-09-20 14:43:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-09-20 14:43:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2018-09-20 14:43:53,459 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 101 [2018-09-20 14:43:53,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:43:53,461 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2018-09-20 14:43:53,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-20 14:43:53,461 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-09-20 14:43:53,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-09-20 14:43:53,462 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:43:53,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:43:53,463 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:43:53,463 INFO L82 PathProgramCache]: Analyzing trace with hash -2010438886, now seen corresponding path program 1 times [2018-09-20 14:43:53,463 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:43:53,463 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-20 14:43:53,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:43:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:43:58,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:43:58,482 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 [2018-09-20 14:43:58,489 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 [2018-09-20 14:43:58,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,512 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. [2018-09-20 14:43:58,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:43:58,565 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 [2018-09-20 14:43:58,570 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 [2018-09-20 14:43:58,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,573 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,583 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. [2018-09-20 14:43:58,583 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:43:58,695 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 16 treesize of output 13 [2018-09-20 14:43:58,701 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 13 treesize of output 12 [2018-09-20 14:43:58,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:43:58,727 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. [2018-09-20 14:43:58,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-20 14:43:58,824 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 58 treesize of output 44 [2018-09-20 14:43:58,834 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:43:58,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2018-09-20 14:43:58,849 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:43:58,867 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:43:58,890 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:43:58,891 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-09-20 14:44:26,516 WARN L178 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 14:44:35,757 WARN L819 $PredicateComparison]: unable to prove that (exists ((|v___ieee754_atan2_#in~x_BEFORE_CALL_4| (_ FloatingPoint 11 53)) (|v_q#valueAsBitvector_28| (_ BitVec 64)) (__ieee754_atan2_~y (_ FloatingPoint 11 53))) (= (fp.div RNE __ieee754_atan2_~y |v___ieee754_atan2_#in~x_BEFORE_CALL_4|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_28|) ((_ extract 62 52) |v_q#valueAsBitvector_28|) ((_ extract 51 0) |v_q#valueAsBitvector_28|)))) is different from true [2018-09-20 14:44:42,435 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 [2018-09-20 14:44:42,442 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 [2018-09-20 14:44:42,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:44:42,451 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:44:42,469 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. [2018-09-20 14:44:42,470 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:44:44,935 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 [2018-09-20 14:44:44,941 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 [2018-09-20 14:44:44,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:44:44,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:44:44,957 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. [2018-09-20 14:44:44,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:44:57,550 WARN L797 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_29| (_ BitVec 64)) (|v_q#valueAsBitvector_28| (_ BitVec 64)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (v_arrayElimCell_28 (_ BitVec 32))) (and (not (bvsge (bvand ((_ extract 63 32) |v_q#valueAsBitvector_29|) (_ bv2147483647 32)) (_ bv1141899264 32))) (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_28|) (_ bv2147483647 32)) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_q#valueAsBitvector_29|) ((_ extract 62 52) |v_q#valueAsBitvector_29|) ((_ extract 51 0) |v_q#valueAsBitvector_29|))) (= (fp.div RNE __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_28|) ((_ extract 62 52) |v_q#valueAsBitvector_28|) ((_ extract 51 0) |v_q#valueAsBitvector_28|))))) is different from false [2018-09-20 14:44:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:44:57,599 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:44:57,667 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:44:57,668 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-20 14:44:57,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-20 14:44:57,668 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-20 14:44:57,669 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=299, Unknown=12, NotChecked=70, Total=420 [2018-09-20 14:44:57,669 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 21 states. [2018-09-20 14:45:10,747 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-20 14:45:24,505 WARN L797 $PredicateComparison]: unable to prove that (and (= c___ieee754_atan2_~x |c___ieee754_atan2_#in~x|) (exists ((|v_q#valueAsBitvector_28| (_ BitVec 64)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (v_arrayElimCell_28 (_ BitVec 32))) (and (= (fp.div RNE __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_28|) ((_ extract 62 52) |v_q#valueAsBitvector_28|) ((_ extract 51 0) |v_q#valueAsBitvector_28|))) (= |c___ieee754_atan2_#t~ret24| (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_28|) (_ bv2147483647 32)) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))))) is different from false [2018-09-20 14:45:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:45:57,881 INFO L93 Difference]: Finished difference Result 141 states and 152 transitions. [2018-09-20 14:45:57,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 14:45:57,972 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2018-09-20 14:45:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:45:57,974 INFO L225 Difference]: With dead ends: 141 [2018-09-20 14:45:57,974 INFO L226 Difference]: Without dead ends: 123 [2018-09-20 14:45:57,975 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 65.8s TimeCoverageRelationStatistics Valid=161, Invalid=1242, Unknown=15, NotChecked=222, Total=1640 [2018-09-20 14:45:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-09-20 14:45:57,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2018-09-20 14:45:57,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-20 14:45:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2018-09-20 14:45:57,989 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 103 [2018-09-20 14:45:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:45:57,989 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2018-09-20 14:45:57,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-20 14:45:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2018-09-20 14:45:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-09-20 14:45:57,992 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:45:57,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:45:57,993 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:45:57,993 INFO L82 PathProgramCache]: Analyzing trace with hash 30149858, now seen corresponding path program 1 times [2018-09-20 14:45:57,994 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:45:57,994 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-09-20 14:45:58,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:45:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:45:59,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:45:59,455 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:45:59,459 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 14:45:59,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 14:45:59,483 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:45:59,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 14:45:59,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:45:59,519 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:45:59,541 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. [2018-09-20 14:45:59,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 14:45:59,719 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 42 treesize of output 33 [2018-09-20 14:45:59,727 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:45:59,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-09-20 14:45:59,743 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:45:59,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:45:59,809 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. [2018-09-20 14:45:59,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:32 [2018-09-20 14:46:01,891 WARN L178 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 27 [2018-09-20 14:46:01,906 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 26 treesize of output 20 [2018-09-20 14:46:01,931 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 14:46:01,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-09-20 14:46:01,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:46:01,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:46:01,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:46:01,971 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:18 [2018-09-20 14:46:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:46:02,489 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:46:02,516 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:46:02,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-20 14:46:02,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-20 14:46:02,517 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-20 14:46:02,517 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-09-20 14:46:02,518 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand 12 states. [2018-09-20 14:46:03,786 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 14:46:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:46:11,129 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2018-09-20 14:46:11,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 14:46:11,133 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2018-09-20 14:46:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:46:11,134 INFO L225 Difference]: With dead ends: 121 [2018-09-20 14:46:11,134 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:46:11,135 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2018-09-20 14:46:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:46:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:46:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:46:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:46:11,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-09-20 14:46:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:46:11,136 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:46:11,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-20 14:46:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:46:11,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:46:11,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:46:11,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-20 14:46:11,346 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 183 [2018-09-20 14:46:11,654 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2018-09-20 14:46:45,699 WARN L178 SmtUtils]: Spent 34.04 s on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-09-20 14:46:59,447 WARN L178 SmtUtils]: Spent 13.73 s on a formula simplification. DAG size of input: 184 DAG size of output: 160 [2018-09-20 14:47:30,058 WARN L178 SmtUtils]: Spent 30.61 s on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2018-09-20 14:47:32,640 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:149) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:985) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-09-20 14:47:32,644 INFO L168 Benchmark]: Toolchain (without parser) took 488997.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 953.2 MB in the beginning and 852.9 MB in the end (delta: 100.3 MB). Peak memory consumption was 295.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:32,649 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:47:32,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 931.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:32,650 INFO L168 Benchmark]: Boogie Preprocessor took 76.85 ms. Allocated memory is still 1.0 GB. Free memory is still 931.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:47:32,650 INFO L168 Benchmark]: RCFGBuilder took 23321.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:32,651 INFO L168 Benchmark]: TraceAbstraction took 465108.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 852.9 MB in the end (delta: 234.8 MB). Peak memory consumption was 274.6 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:32,655 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 483.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 931.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.85 ms. Allocated memory is still 1.0 GB. Free memory is still 931.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 23321.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 465108.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 852.9 MB in the end (delta: 234.8 MB). Peak memory consumption was 274.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 260]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...