/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_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 0c16c67ce5cca443cd83fc5281839df28ff6e9dd ...................................................................................................................................................................................................................................................................................................... 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_0710_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 0c16c67ce5cca443cd83fc5281839df28ff6e9dd ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 14:44:02,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:44:02,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:44:02,393 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:44:02,393 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:44:02,394 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:44:02,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:44:02,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:44:02,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:44:02,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:44:02,406 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:44:02,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:44:02,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:44:02,416 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:44:02,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:44:02,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:44:02,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:44:02,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:44:02,426 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:44:02,429 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:44:02,432 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:44:02,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:44:02,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:44:02,440 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:44:02,440 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:44:02,441 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:44:02,442 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:44:02,442 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:44:02,443 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:44:02,444 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:44:02,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:44:02,445 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:44:02,445 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:44:02,445 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:44:02,448 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:44:02,450 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:44:02,450 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:44:02,475 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:44:02,475 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:44:02,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:44:02,476 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:44:02,477 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:44:02,477 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:44:02,478 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:44:02,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:44:02,478 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:44:02,478 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:44:02,478 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:44:02,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:44:02,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:44:02,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:44:02,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:44:02,479 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:44:02,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:44:02,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:44:02,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:44:02,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:44:02,481 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:44:02,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:44:02,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:44:02,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:44:02,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:44:02,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:44:02,482 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:44:02,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:44:02,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:44:02,484 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 -> 0c16c67ce5cca443cd83fc5281839df28ff6e9dd [2018-09-20 14:44:02,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:44:02,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:44:02,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:44:02,572 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:44:02,573 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:44:02,573 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:02,928 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade5fbc38/c029111de46149cfa050d38da1e610ca/FLAG80addd7fc [2018-09-20 14:44:03,092 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:44:03,093 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:03,100 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade5fbc38/c029111de46149cfa050d38da1e610ca/FLAG80addd7fc [2018-09-20 14:44:03,115 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade5fbc38/c029111de46149cfa050d38da1e610ca [2018-09-20 14:44:03,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:44:03,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:44:03,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:44:03,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:44:03,128 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:44:03,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e52056e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03, skipping insertion in model container [2018-09-20 14:44:03,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,144 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:44:03,367 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:44:03,384 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:44:03,414 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:44:03,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03 WrapperNode [2018-09-20 14:44:03,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:44:03,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:44:03,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:44:03,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:44:03,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... [2018-09-20 14:44:03,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:44:03,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:44:03,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:44:03,537 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:44:03,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:44:03,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:44:03,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:44:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 14:44:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-20 14:44:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:44:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:44:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:44:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 14:44:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-20 14:44:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:44:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 14:44:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:44:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:44:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 14:44:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 14:44:04,556 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:44:04,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:44:04 BoogieIcfgContainer [2018-09-20 14:44:04,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:44:04,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:44:04,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:44:04,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:44:04,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:44:03" (1/3) ... [2018-09-20 14:44:04,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7641dc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:44:04, skipping insertion in model container [2018-09-20 14:44:04,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:03" (2/3) ... [2018-09-20 14:44:04,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7641dc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:44:04, skipping insertion in model container [2018-09-20 14:44:04,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:44:04" (3/3) ... [2018-09-20 14:44:04,566 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:04,576 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:44:04,585 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:44:04,629 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:44:04,629 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:44:04,630 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:44:04,630 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:44:04,630 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:44:04,630 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:44:04,630 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:44:04,630 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:44:04,631 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:44:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-09-20 14:44:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 14:44:04,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:44:04,658 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] [2018-09-20 14:44:04,660 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:44:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash 438345323, now seen corresponding path program 1 times [2018-09-20 14:44:04,668 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:44:04,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:44:04,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:44:04,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:44:04,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:44:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:44:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:44:04,817 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:44:04,817 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:44:04,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:44:04,836 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:44:04,838 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:44:04,841 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-09-20 14:44:04,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:44:04,874 INFO L93 Difference]: Finished difference Result 171 states and 228 transitions. [2018-09-20 14:44:04,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:44:04,876 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 14:44:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:44:04,889 INFO L225 Difference]: With dead ends: 171 [2018-09-20 14:44:04,889 INFO L226 Difference]: Without dead ends: 85 [2018-09-20 14:44:04,893 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:44:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-20 14:44:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-20 14:44:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-20 14:44:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 104 transitions. [2018-09-20 14:44:04,935 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 104 transitions. Word has length 21 [2018-09-20 14:44:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:44:04,936 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 104 transitions. [2018-09-20 14:44:04,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:44:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2018-09-20 14:44:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 14:44:04,938 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:44:04,938 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] [2018-09-20 14:44:04,938 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:44:04,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1009031604, now seen corresponding path program 1 times [2018-09-20 14:44:04,939 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:44:04,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:44:04,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:44:04,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:44:04,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:44:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:44:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:44:05,076 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:44:05,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:44:05 BoogieIcfgContainer [2018-09-20 14:44:05,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:44:05,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:44:05,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:44:05,142 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:44:05,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:44:04" (3/4) ... [2018-09-20 14:44:05,148 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:44:05,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:44:05,149 INFO L168 Benchmark]: Toolchain (without parser) took 2030.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -139.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:44:05,152 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:44:05,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:44:05,154 INFO L168 Benchmark]: Boogie Preprocessor took 88.67 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:44:05,155 INFO L168 Benchmark]: RCFGBuilder took 1021.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:44:05,156 INFO L168 Benchmark]: TraceAbstraction took 583.04 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-09-20 14:44:05,157 INFO L168 Benchmark]: Witness Printer took 6.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:44:05,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 324.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.67 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1021.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 583.04 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.89 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: 146]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=16, \old(tiny_sqrt)=13, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x < -0.0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=14, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L29] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=14, ew_u={15:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L30] FCALL ew_u.value = (x) VAL [\old(x)=14, ew_u={15:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] (ix0) = ew_u.parts.msw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] FCALL (ix0) = ew_u.parts.msw VAL [(ix0) = ew_u.parts.msw=17, \old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] (ix1) = ew_u.parts.lsw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] FCALL (ix1) = ew_u.parts.lsw VAL [(ix1) = ew_u.parts.lsw=11, \old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L33] COND FALSE !(0) VAL [\old(x)=14, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] RET return x * x + x; VAL [\old(x)=14, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] double res = __ieee754_sqrt(x); [L145] CALL, EXPR isnan_double(res) VAL [\old(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L18] RET return x != x; VAL [\old(x)=9, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=9] [L145] EXPR isnan_double(res) VAL [isnan_double(res)=0, one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L145] COND TRUE !isnan_double(res) [L146] __VERIFIER_error() VAL [one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 14:44:07,327 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:44:07,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:44:07,341 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:44:07,341 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:44:07,342 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:44:07,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:44:07,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:44:07,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:44:07,348 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:44:07,349 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:44:07,349 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:44:07,350 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:44:07,351 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:44:07,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:44:07,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:44:07,354 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:44:07,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:44:07,358 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:44:07,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:44:07,361 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:44:07,362 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:44:07,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:44:07,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:44:07,365 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:44:07,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:44:07,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:44:07,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:44:07,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:44:07,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:44:07,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:44:07,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:44:07,372 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:44:07,372 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:44:07,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:44:07,374 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:44:07,375 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:44:07,390 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:44:07,390 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:44:07,391 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:44:07,391 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:44:07,392 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:44:07,392 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:44:07,392 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:44:07,392 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:44:07,393 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:44:07,393 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:44:07,394 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:44:07,394 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:44:07,394 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:44:07,394 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:44:07,394 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:44:07,395 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:44:07,395 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:44:07,395 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:44:07,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:44:07,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:44:07,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:44:07,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:44:07,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:44:07,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:44:07,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:44:07,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:44:07,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:44:07,398 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:44:07,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:44:07,399 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:44:07,399 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:44:07,399 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 -> 0c16c67ce5cca443cd83fc5281839df28ff6e9dd [2018-09-20 14:44:07,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:44:07,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:44:07,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:44:07,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:44:07,467 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:44:07,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:07,795 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6526f608d/b8957a2e442a412fb0ff58df730b4571/FLAGe8582eedb [2018-09-20 14:44:07,972 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:44:07,973 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:07,981 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6526f608d/b8957a2e442a412fb0ff58df730b4571/FLAGe8582eedb [2018-09-20 14:44:07,998 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6526f608d/b8957a2e442a412fb0ff58df730b4571 [2018-09-20 14:44:08,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:44:08,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:44:08,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:44:08,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:44:08,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:44:08,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:44:07" (1/1) ... [2018-09-20 14:44:08,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682d7878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08, skipping insertion in model container [2018-09-20 14:44:08,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:44:07" (1/1) ... [2018-09-20 14:44:08,030 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:44:08,279 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:44:08,297 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:44:08,337 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:44:08,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08 WrapperNode [2018-09-20 14:44:08,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:44:08,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:44:08,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:44:08,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:44:08,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... [2018-09-20 14:44:08,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:44:08,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:44:08,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:44:08,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:44:08,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:44:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:44:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:44:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 14:44:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-20 14:44:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:44:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:44:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:44:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 14:44:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 14:44:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:44:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:44:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:44:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 14:44:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 14:44:09,275 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:44:09,304 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:44:09,341 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:44:12,952 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:44:12,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:44:12 BoogieIcfgContainer [2018-09-20 14:44:12,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:44:12,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:44:12,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:44:12,958 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:44:12,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:44:07" (1/3) ... [2018-09-20 14:44:12,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d028a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:44:12, skipping insertion in model container [2018-09-20 14:44:12,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:44:08" (2/3) ... [2018-09-20 14:44:12,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d028a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:44:12, skipping insertion in model container [2018-09-20 14:44:12,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:44:12" (3/3) ... [2018-09-20 14:44:12,962 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0710_true-unreach-call.c [2018-09-20 14:44:12,971 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:44:12,980 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:44:13,026 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:44:13,026 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:44:13,027 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:44:13,027 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:44:13,027 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:44:13,027 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:44:13,027 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:44:13,027 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:44:13,028 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:44:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-09-20 14:44:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 14:44:13,053 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:44:13,054 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] [2018-09-20 14:44:13,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:44:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2064908287, now seen corresponding path program 1 times [2018-09-20 14:44:13,067 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:44:13,067 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 14:44:13,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:44:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:44:13,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:44:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:44:13,520 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:44:13,536 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:44:13,536 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:44:13,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:44:13,551 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:44:13,552 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:44:13,554 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-09-20 14:44:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:44:13,582 INFO L93 Difference]: Finished difference Result 169 states and 226 transitions. [2018-09-20 14:44:13,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:44:13,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 14:44:13,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:44:13,596 INFO L225 Difference]: With dead ends: 169 [2018-09-20 14:44:13,597 INFO L226 Difference]: Without dead ends: 84 [2018-09-20 14:44:13,601 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:44:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-09-20 14:44:13,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-09-20 14:44:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-09-20 14:44:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2018-09-20 14:44:13,648 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 20 [2018-09-20 14:44:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:44:13,649 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2018-09-20 14:44:13,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:44:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2018-09-20 14:44:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-20 14:44:13,651 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:44:13,651 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] [2018-09-20 14:44:13,651 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:44:13,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1371212009, now seen corresponding path program 1 times [2018-09-20 14:44:13,653 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:44:13,653 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 14:44:13,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:44:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:44:14,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:44:14,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:44:14,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:44:14,137 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:44:14,158 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:44:14,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:44:14,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 14:44:14,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:44:14,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:44:14,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:44:14,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:44:14,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:44:14,419 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 14:44:17,427 WARN L819 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_4| (_ BitVec 64))) (and (= |c___ieee754_sqrt_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_4|) ((_ extract 62 52) |v_q#valueAsBitvector_4|) ((_ extract 51 0) |v_q#valueAsBitvector_4|))) (= (_ bv2146435072 32) (bvand ((_ extract 63 32) |v_q#valueAsBitvector_4|) (_ bv2146435072 32))))) (= |c___ieee754_sqrt_#res| (fp.add RNE (fp.mul RNE |c___ieee754_sqrt_#in~x| |c___ieee754_sqrt_#in~x|) |c___ieee754_sqrt_#in~x|))) is different from true [2018-09-20 14:44:28,130 WARN L178 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-20 14:44:41,519 WARN L178 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-20 14:44:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:44:44,681 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:44:44,699 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:44:44,699 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-20 14:44:44,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-20 14:44:44,702 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-20 14:44:44,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=83, Unknown=7, NotChecked=18, Total=132 [2018-09-20 14:44:44,705 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand 12 states. [2018-09-20 14:45:33,675 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 14:46:42,570 WARN L178 SmtUtils]: Spent 5.00 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 14:47:11,149 WARN L178 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-20 14:47:36,528 WARN L178 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-20 14:47:40,594 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-20 14:47:40,596 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:690) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-20 14:47:40,600 INFO L168 Benchmark]: Toolchain (without parser) took 212597.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -69.5 MB). Peak memory consumption was 97.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:40,601 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:47:40,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:40,604 INFO L168 Benchmark]: Boogie Preprocessor took 102.42 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:47:40,604 INFO L168 Benchmark]: RCFGBuilder took 4434.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:40,605 INFO L168 Benchmark]: TraceAbstraction took 207644.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. [2018-09-20 14:47:40,610 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 409.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.42 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4434.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 207644.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...