/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a_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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a_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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:05:25,631 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:05:25,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:05:25,647 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:05:25,648 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:05:25,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:05:25,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:05:25,653 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:05:25,655 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:05:25,656 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:05:25,657 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:05:25,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:05:25,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:05:25,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:05:25,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:05:25,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:05:25,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:05:25,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:05:25,669 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:05:25,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:05:25,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:05:25,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:05:25,677 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:05:25,677 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:05:25,677 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:05:25,679 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:05:25,680 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:05:25,681 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:05:25,682 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:05:25,683 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:05:25,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:05:25,685 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:05:25,685 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:05:25,685 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:05:25,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:05:25,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:05:25,688 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:05:25,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:05:25,713 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:05:25,714 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:05:25,714 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:05:25,715 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:05:25,715 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:05:25,716 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:05:25,716 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:05:25,716 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:05:25,717 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:05:25,718 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:05:25,718 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:05:25,718 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:05:25,718 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:05:25,723 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:05:25,724 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:05:25,724 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:05:25,724 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:05:25,724 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:05:25,725 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:05:25,725 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:05:25,725 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:05:25,725 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:05:25,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:05:25,727 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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:05:25,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:05:25,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:05:25,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:05:25,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:05:25,828 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:05:25,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:05:26,183 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e14bf89/8390cb39eb1d436a86850227eb9f54f0/FLAGc0b44ba69 [2018-09-21 18:05:26,429 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:05:26,430 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:05:26,439 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e14bf89/8390cb39eb1d436a86850227eb9f54f0/FLAGc0b44ba69 [2018-09-21 18:05:26,455 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e14bf89/8390cb39eb1d436a86850227eb9f54f0 [2018-09-21 18:05:26,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:05:26,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:05:26,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:05:26,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:05:26,473 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:05:26,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:26,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0c925f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26, skipping insertion in model container [2018-09-21 18:05:26,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:26,491 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:05:26,822 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:05:26,849 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:05:26,897 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:05:26,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26 WrapperNode [2018-09-21 18:05:26,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:05:26,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:05:26,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:05:26,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:05:26,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:26,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:26,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:27,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:27,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:27,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:27,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... [2018-09-21 18:05:27,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:05:27,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:05:27,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:05:27,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:05:27,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:05:27,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:05:27,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:05:27,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:05:27,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-09-21 18:05:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-09-21 18:05:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:05:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:05:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-09-21 18:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:05:28,285 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:05:28,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:05:28 BoogieIcfgContainer [2018-09-21 18:05:28,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:05:28,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:05:28,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:05:28,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:05:28,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:05:26" (1/3) ... [2018-09-21 18:05:28,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c35154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:05:28, skipping insertion in model container [2018-09-21 18:05:28,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:26" (2/3) ... [2018-09-21 18:05:28,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c35154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:05:28, skipping insertion in model container [2018-09-21 18:05:28,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:05:28" (3/3) ... [2018-09-21 18:05:28,296 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:05:28,305 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:05:28,315 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:05:28,358 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:05:28,359 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:05:28,359 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:05:28,359 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:05:28,359 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:05:28,360 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:05:28,361 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:05:28,361 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:05:28,361 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:05:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2018-09-21 18:05:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-21 18:05:28,416 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:05:28,418 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] [2018-09-21 18:05:28,423 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:05:28,429 INFO L82 PathProgramCache]: Analyzing trace with hash -590767215, now seen corresponding path program 1 times [2018-09-21 18:05:28,432 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:05:28,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:05:28,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:05:28,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:05:28,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:05:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:05:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:05:28,712 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:05:28,712 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:05:28,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:05:28,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:05:28,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:05:28,740 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 3 states. [2018-09-21 18:05:28,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:05:28,818 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2018-09-21 18:05:28,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:05:28,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-09-21 18:05:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:05:28,838 INFO L225 Difference]: With dead ends: 92 [2018-09-21 18:05:28,839 INFO L226 Difference]: Without dead ends: 86 [2018-09-21 18:05:28,842 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:05:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-21 18:05:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-09-21 18:05:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-21 18:05:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2018-09-21 18:05:28,887 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 24 [2018-09-21 18:05:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:05:28,887 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2018-09-21 18:05:28,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:05:28,888 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2018-09-21 18:05:28,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-21 18:05:28,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:05:28,890 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] [2018-09-21 18:05:28,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:05:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1659555941, now seen corresponding path program 1 times [2018-09-21 18:05:28,891 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:05:28,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:05:28,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:05:28,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:05:28,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:05:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:05:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:05:29,120 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:05:29,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:05:29 BoogieIcfgContainer [2018-09-21 18:05:29,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:05:29,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:05:29,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:05:29,247 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:05:29,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:05:28" (3/4) ... [2018-09-21 18:05:29,253 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:05:29,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:05:29,257 INFO L168 Benchmark]: Toolchain (without parser) took 2795.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -111.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:05:29,259 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:05:29,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 931.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:05:29,262 INFO L168 Benchmark]: Boogie Preprocessor took 123.11 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. [2018-09-21 18:05:29,262 INFO L168 Benchmark]: RCFGBuilder took 1216.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:05:29,263 INFO L168 Benchmark]: TraceAbstraction took 958.09 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:05:29,264 INFO L168 Benchmark]: Witness Printer took 9.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:05:29,271 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 479.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 931.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.11 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 1216.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 958.09 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 9.36 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: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 137, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=6442450962, \old(Lg2_log)=6442450965, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450953, \old(two54_log)=6442450960, \old(zero)=6442450963, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L146] double x = __VERIFIER_nondet_double(); [L148] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, x < 0 && isfinite_double(x)=1, zero=0] [L148] COND TRUE, EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, x < 0 && isfinite_double(x)=1, zero=0] [L148] CALL, EXPR isfinite_double(x) VAL [\old(x)=6442450949, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L127] __int32_t hx; VAL [\old(x)=6442450949, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L129] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=6442450949, gh_u={6442450961:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L130] FCALL gh_u.value = (x) VAL [\old(x)=6442450949, gh_u={6442450961:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L131] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=6442450949, gh_u={6442450961:0}, gh_u.parts.msw=6442450944, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L131] (hx) = gh_u.parts.msw VAL [\old(x)=6442450949, gh_u={6442450961:0}, gh_u.parts.msw=6442450944, hx=-2147483648, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L131] FCALL (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=6442450955, \old(x)=6442450949, gh_u={6442450961:0}, gh_u.parts.msw=6442450944, hx=-2147483648, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L132] COND FALSE !(0) VAL [\old(x)=6442450949, hx=-2147483648, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L133] RET return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=6442450949, \result=-1, hx=-2147483648, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L148] EXPR isfinite_double(x) VAL [isfinite_double(x)=-1, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, x < 0 && isfinite_double(x)=1, zero=0] [L148] EXPR x < 0 && isfinite_double(x) VAL [isfinite_double(x)=-1, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, x < 0 && isfinite_double(x)=1, zero=0] [L148] COND TRUE (x < 0 && isfinite_double(x)) [L150] CALL, EXPR __ieee754_log(x) VAL [\old(x)=6442450949, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=6442450949, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L51] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450949, ew_u={6442450951:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L52] FCALL ew_u.value = (x) VAL [\old(x)=6442450949, ew_u={6442450951:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L53] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.msw=6442450943, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L53] (hx) = ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.msw=6442450943, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L53] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=6442450957, \old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.msw=6442450943, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L54] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.lsw=6442450952, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L54] (lx) = ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.lsw=6442450952, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L54] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=6442450956, \old(x)=6442450949, ew_u={6442450951:0}, ew_u.parts.lsw=6442450952, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L55] COND FALSE !(0) VAL [\old(x)=6442450949, hx=2147483647, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L57] k = 0 VAL [\old(x)=6442450949, hx=2147483647, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L58] COND FALSE !(hx < 0x00100000) VAL [\old(x)=6442450949, hx=2147483647, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L71] COND TRUE hx >= 0x7ff00000 [L72] RET return x + x; VAL [\old(x)=6442450949, hx=2147483647, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483656, two54_log=18014398509481984, x=6442450949, zero=0] [L150] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=6442450964, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450949, zero=0] [L150] double res = __ieee754_log(x); [L153] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450964, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L137] RET return x != x; VAL [\old(x)=6442450964, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450964, zero=0] [L153] EXPR isnan_double(res) VAL [isnan_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6442450964, two54_log=18014398509481984, x=6442450949, zero=0] [L153] COND TRUE !isnan_double(res) [L154] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6442450964, two54_log=18014398509481984, x=6442450949, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 109 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 102 SDtfs, 0 SDslu, 97 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred 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, 0.1s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:05:31,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:05:31,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:05:31,908 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:05:31,909 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:05:31,911 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:05:31,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:05:31,914 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:05:31,916 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:05:31,917 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:05:31,918 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:05:31,918 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:05:31,919 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:05:31,920 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:05:31,921 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:05:31,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:05:31,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:05:31,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:05:31,931 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:05:31,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:05:31,937 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:05:31,939 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:05:31,943 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:05:31,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:05:31,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:05:31,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:05:31,947 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:05:31,951 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:05:31,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:05:31,956 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:05:31,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:05:31,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:05:31,957 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:05:31,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:05:31,961 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:05:31,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:05:31,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:05:31,985 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:05:31,986 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:05:31,987 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:05:31,987 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:05:31,988 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:05:31,988 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:05:31,988 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:05:31,989 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:05:31,989 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:05:31,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:05:31,990 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:05:31,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:05:31,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:05:31,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:05:31,991 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:05:31,991 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:05:31,992 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:05:31,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:05:31,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:05:31,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:05:31,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:05:31,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:05:31,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:05:31,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:05:31,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:05:31,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:05:31,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:05:31,994 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:05:31,995 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:05:31,996 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:05:31,996 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:05:31,996 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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:05:32,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:05:32,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:05:32,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:05:32,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:05:32,080 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:05:32,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:05:32,475 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db31e830e/793cdaee4b6a4fd59b2ab2455ae43466/FLAGea40ccc26 [2018-09-21 18:05:32,684 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:05:32,685 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:05:32,695 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db31e830e/793cdaee4b6a4fd59b2ab2455ae43466/FLAGea40ccc26 [2018-09-21 18:05:32,713 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db31e830e/793cdaee4b6a4fd59b2ab2455ae43466 [2018-09-21 18:05:32,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:05:32,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:05:32,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:05:32,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:05:32,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:05:32,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:05:32" (1/1) ... [2018-09-21 18:05:32,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d72080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:32, skipping insertion in model container [2018-09-21 18:05:32,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:05:32" (1/1) ... [2018-09-21 18:05:32,749 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:05:33,141 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:05:33,165 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:05:33,231 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:05:33,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33 WrapperNode [2018-09-21 18:05:33,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:05:33,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:05:33,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:05:33,279 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:05:33,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... [2018-09-21 18:05:33,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:05:33,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:05:33,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:05:33,356 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:05:33,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:05:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:05:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:05:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:05:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-09-21 18:05:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-09-21 18:05:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:05:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:05:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:05:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-09-21 18:05:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:05:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:05:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-09-21 18:05:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:05:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:05:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:05:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:05:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:05:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:05:33,865 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:33,897 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:49,814 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:49,831 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:49,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:55,199 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:55,221 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:05:55,372 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:00,012 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:00,054 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:00,078 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:00,166 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:06:00,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:00 BoogieIcfgContainer [2018-09-21 18:06:00,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:06:00,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:06:00,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:06:00,172 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:06:00,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:05:32" (1/3) ... [2018-09-21 18:06:00,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab830f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:06:00, skipping insertion in model container [2018-09-21 18:06:00,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:05:33" (2/3) ... [2018-09-21 18:06:00,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab830f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:06:00, skipping insertion in model container [2018-09-21 18:06:00,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:00" (3/3) ... [2018-09-21 18:06:00,177 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a_true-unreach-call.c [2018-09-21 18:06:00,187 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:06:00,195 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:06:00,238 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:06:00,239 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:06:00,239 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:06:00,239 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:06:00,240 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:06:00,240 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:06:00,240 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:06:00,240 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:06:00,240 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:06:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-09-21 18:06:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:06:00,277 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:00,279 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] [2018-09-21 18:06:00,282 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1324264884, now seen corresponding path program 1 times [2018-09-21 18:06:00,297 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:06:00,298 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:06:00,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:06:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:00,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:06:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:00,497 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:06:00,519 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:00,519 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:06:00,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:06:00,544 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:06:00,545 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:06:00,548 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-09-21 18:06:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:06:00,580 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2018-09-21 18:06:00,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:06:00,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:06:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:06:00,603 INFO L225 Difference]: With dead ends: 90 [2018-09-21 18:06:00,604 INFO L226 Difference]: Without dead ends: 85 [2018-09-21 18:06:00,608 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:06:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-21 18:06:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-21 18:06:00,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 18:06:00,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2018-09-21 18:06:00,677 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 23 [2018-09-21 18:06:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:06:00,678 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2018-09-21 18:06:00,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:06:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2018-09-21 18:06:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:06:00,685 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:00,685 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:06:00,686 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:00,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1802213880, now seen corresponding path program 1 times [2018-09-21 18:06:00,688 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:06:00,690 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:06:00,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:06:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:00,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:06:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:00,925 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:06:00,945 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:00,945 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:06:00,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:06:00,949 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:06:00,949 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:06:00,953 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 3 states. [2018-09-21 18:06:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:06:01,015 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2018-09-21 18:06:01,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:06:01,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-09-21 18:06:01,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:06:01,018 INFO L225 Difference]: With dead ends: 86 [2018-09-21 18:06:01,019 INFO L226 Difference]: Without dead ends: 85 [2018-09-21 18:06:01,020 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:06:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-21 18:06:01,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-21 18:06:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 18:06:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2018-09-21 18:06:01,032 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 36 [2018-09-21 18:06:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:06:01,033 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2018-09-21 18:06:01,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:06:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2018-09-21 18:06:01,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:06:01,036 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:01,036 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] [2018-09-21 18:06:01,036 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:01,037 INFO L82 PathProgramCache]: Analyzing trace with hash 34075258, now seen corresponding path program 1 times [2018-09-21 18:06:01,037 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:06:01,038 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:06:01,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:06:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:01,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:06:01,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:06:01,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:06:01,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:06:01,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:06:01,707 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:06:01,708 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:06:01,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:06:01,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:06:01,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:06:01,828 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:06:01,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:06:01,917 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:06:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:02,207 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:06:02,226 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:02,226 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:06:02,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:06:02,227 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:06:02,228 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:06:02,229 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 9 states. [2018-09-21 18:06:02,954 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:06:03,336 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:06:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:06:17,226 INFO L93 Difference]: Finished difference Result 112 states and 128 transitions. [2018-09-21 18:06:17,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:06:17,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-09-21 18:06:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:06:17,233 INFO L225 Difference]: With dead ends: 112 [2018-09-21 18:06:17,233 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:06:17,238 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:06:17,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:06:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2018-09-21 18:06:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 18:06:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2018-09-21 18:06:17,250 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 52 [2018-09-21 18:06:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:06:17,251 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2018-09-21 18:06:17,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:06:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2018-09-21 18:06:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:06:17,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:17,254 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] [2018-09-21 18:06:17,255 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:17,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1898457403, now seen corresponding path program 1 times [2018-09-21 18:06:17,255 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:06:17,256 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) [2018-09-21 18:06:17,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:06:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:18,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:06:18,675 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:06:18,676 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:06:18,678 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 [2018-09-21 18:06:18,689 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:06:18,709 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 [2018-09-21 18:06:18,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:06:18,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:06:18,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:06:18,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:06:19,072 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 [2018-09-21 18:06:19,094 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:06:19,113 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 [2018-09-21 18:06:19,114 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:06:19,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:06:19,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:06:19,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:32 [2018-09-21 18:06:21,374 WARN L178 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 18:06:21,397 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 [2018-09-21 18:06:21,439 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:06:21,459 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 [2018-09-21 18:06:21,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:06:21,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:06:21,487 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. [2018-09-21 18:06:21,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:18 [2018-09-21 18:06:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:21,818 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:06:21,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:21,847 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:06:21,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:06:21,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:06:21,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:06:21,848 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 12 states. [2018-09-21 18:06:23,371 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:06:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:06:43,407 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2018-09-21 18:06:43,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-21 18:06:43,411 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-09-21 18:06:43,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:06:43,413 INFO L225 Difference]: With dead ends: 87 [2018-09-21 18:06:43,413 INFO L226 Difference]: Without dead ends: 85 [2018-09-21 18:06:43,414 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:06:43,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-21 18:06:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-21 18:06:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 18:06:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2018-09-21 18:06:43,421 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 52 [2018-09-21 18:06:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:06:43,422 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2018-09-21 18:06:43,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:06:43,422 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2018-09-21 18:06:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-21 18:06:43,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:43,424 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] [2018-09-21 18:06:43,425 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:43,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1079117600, now seen corresponding path program 1 times [2018-09-21 18:06:43,426 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:06:43,426 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:06:43,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:06:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:44,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:06:48,380 WARN L178 SmtUtils]: Spent 3.37 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:06:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:49,889 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:06:49,912 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:49,912 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:06:49,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:06:49,913 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:06:49,913 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:06:49,915 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand 8 states. [2018-09-21 18:06:54,733 WARN L178 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:06:55,919 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:06:58,425 WARN L178 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-21 18:07:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:07:24,310 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2018-09-21 18:07:24,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 18:07:24,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-09-21 18:07:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:07:24,314 INFO L225 Difference]: With dead ends: 92 [2018-09-21 18:07:24,314 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:07:24,315 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:07:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:07:24,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2018-09-21 18:07:24,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 18:07:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2018-09-21 18:07:24,326 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 53 [2018-09-21 18:07:24,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:07:24,327 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2018-09-21 18:07:24,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:07:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2018-09-21 18:07:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-21 18:07:24,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:07:24,330 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] [2018-09-21 18:07:24,330 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:07:24,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1106234599, now seen corresponding path program 1 times [2018-09-21 18:07:24,331 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:07:24,331 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:07:24,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:07:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:07:24,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:07:24,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:07:24,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:07:24,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:07:24,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:07:24,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:07:24,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:07:24,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:07:24,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:07:24,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:07:24,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:07:24,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:07:24,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:07:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:07:25,440 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:07:25,459 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:07:25,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:07:25,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:07:25,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:07:25,461 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:07:25,461 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand 10 states. [2018-09-21 18:07:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:07:32,837 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-09-21 18:07:32,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:07:32,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-09-21 18:07:32,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:07:32,839 INFO L225 Difference]: With dead ends: 77 [2018-09-21 18:07:32,839 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:07:32,842 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:07:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:07:32,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:07:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:07:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:07:32,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2018-09-21 18:07:32,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:07:32,843 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:07:32,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:07:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:07:32,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:07:32,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:07:32 BoogieIcfgContainer [2018-09-21 18:07:32,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:07:32,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:07:32,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:07:32,849 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:07:32,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:00" (3/4) ... [2018-09-21 18:07:32,855 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:07:32,863 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_double [2018-09-21 18:07:32,863 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:07:32,864 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:07:32,864 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-09-21 18:07:32,864 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-21 18:07:32,864 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:07:32,873 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-09-21 18:07:32,873 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 18:07:32,874 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:07:32,874 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:07:32,955 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:07:32,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:07:32,958 INFO L168 Benchmark]: Toolchain (without parser) took 120238.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:07:32,959 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:07:32,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.41 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:07:32,960 INFO L168 Benchmark]: Boogie Preprocessor took 76.71 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:07:32,963 INFO L168 Benchmark]: RCFGBuilder took 26810.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -134.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:07:32,964 INFO L168 Benchmark]: TraceAbstraction took 92681.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.5 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:07:32,965 INFO L168 Benchmark]: Witness Printer took 106.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:07:32,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 556.41 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.71 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 26810.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -134.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 92681.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.5 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * Witness Printer took 106.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 108 locations, 1 error locations. SAFE Result, 92.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 78.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 205 SDslu, 2007 SDs, 0 SdLazy, 441 SolverSat, 30 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 66.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 274 ConstructedInterpolants, 64 QuantifiedInterpolants, 88945 SizeOfPredicates, 30 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...