/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960a_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 643b85cfda98ac4fd84758bc794baabdbceeba64 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960a_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 643b85cfda98ac4fd84758bc794baabdbceeba64 --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 18:36:04,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:04,020 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:04,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:04,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:04,035 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:04,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:04,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:04,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:04,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:04,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:04,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:04,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:04,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:04,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:04,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:04,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:04,048 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:04,050 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:04,051 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:04,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:04,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:04,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:04,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:04,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:04,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:04,059 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:04,060 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:04,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:04,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:04,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:04,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:04,063 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:04,063 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:04,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:04,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:04,065 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:36:04,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:04,084 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:04,085 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:04,085 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:04,087 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:04,088 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:04,088 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:04,089 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:04,089 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:04,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:36:04,089 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:04,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:04,089 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:04,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:04,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:04,090 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:04,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:04,092 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:04,092 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:04,093 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:04,093 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:04,093 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:04,093 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:04,094 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:04,095 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:04,095 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:04,095 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:36:04,096 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:04,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:36:04,096 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 -> 643b85cfda98ac4fd84758bc794baabdbceeba64 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 18:36:04,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:04,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:04,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:04,208 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:04,210 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:04,211 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:04,566 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f1ddbbe6/e1e94bac2ed24e7e9fa86eafd9bd7f4d/FLAGcc384dfef [2018-09-21 18:36:04,771 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:04,773 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:04,789 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f1ddbbe6/e1e94bac2ed24e7e9fa86eafd9bd7f4d/FLAGcc384dfef [2018-09-21 18:36:04,806 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f1ddbbe6/e1e94bac2ed24e7e9fa86eafd9bd7f4d [2018-09-21 18:36:04,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:04,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:04,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:04,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:04,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:04,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:04" (1/1) ... [2018-09-21 18:36:04,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee5304a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:04, skipping insertion in model container [2018-09-21 18:36:04,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:04" (1/1) ... [2018-09-21 18:36:04,837 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:05,149 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:05,173 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:05,217 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:05,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05 WrapperNode [2018-09-21 18:36:05,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:05,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:05,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:05,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:05,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (1/1) ... [2018-09-21 18:36:05,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:05,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:05,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:05,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:05,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (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 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:36:05,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:36:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:36:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:36:06,461 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:36:06,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:06 BoogieIcfgContainer [2018-09-21 18:36:06,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:36:06,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:36:06,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:36:06,467 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:36:06,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:04" (1/3) ... [2018-09-21 18:36:06,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099beb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:06, skipping insertion in model container [2018-09-21 18:36:06,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:05" (2/3) ... [2018-09-21 18:36:06,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099beb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:06, skipping insertion in model container [2018-09-21 18:36:06,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:06" (3/3) ... [2018-09-21 18:36:06,470 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:06,480 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:36:06,489 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:36:06,531 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:36:06,531 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:36:06,532 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:36:06,532 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:36:06,532 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:36:06,532 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:36:06,532 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:36:06,533 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:36:06,533 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:36:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2018-09-21 18:36:06,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:36:06,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:06,567 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 18:36:06,569 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:06,575 INFO L82 PathProgramCache]: Analyzing trace with hash 662128350, now seen corresponding path program 1 times [2018-09-21 18:36:06,577 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:06,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:06,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:06,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:06,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:06,745 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 18:36:06,747 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:06,748 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:36:06,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:36:06,769 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:36:06,774 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:36:06,777 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2018-09-21 18:36:06,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:06,810 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2018-09-21 18:36:06,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:36:06,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:36:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:06,827 INFO L225 Difference]: With dead ends: 119 [2018-09-21 18:36:06,827 INFO L226 Difference]: Without dead ends: 115 [2018-09-21 18:36:06,829 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:36:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-09-21 18:36:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-09-21 18:36:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-09-21 18:36:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2018-09-21 18:36:06,875 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 23 [2018-09-21 18:36:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:06,875 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2018-09-21 18:36:06,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:36:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2018-09-21 18:36:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:36:06,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:06,878 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] [2018-09-21 18:36:06,878 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1945787210, now seen corresponding path program 1 times [2018-09-21 18:36:06,879 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:06,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:06,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:06,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:06,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:07,084 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:36:07,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:36:07 BoogieIcfgContainer [2018-09-21 18:36:07,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:36:07,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:36:07,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:36:07,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:36:07,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:06" (3/4) ... [2018-09-21 18:36:07,209 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:36:07,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:36:07,210 INFO L168 Benchmark]: Toolchain (without parser) took 2399.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -100.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:07,214 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:36:07,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.68 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:07,217 INFO L168 Benchmark]: Boogie Preprocessor took 63.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:36:07,218 INFO L168 Benchmark]: RCFGBuilder took 1146.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:07,220 INFO L168 Benchmark]: TraceAbstraction took 735.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:07,221 INFO L168 Benchmark]: Witness Printer took 10.35 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 18:36:07,227 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.68 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 63.01 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 1146.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 735.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 10.35 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: 167]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 152. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=10737418242, \old(Lg1_log)=10737418260, \old(Lg2_log)=10737418262, \old(Lg3_log)=10737418241, \old(Lg4_log)=10737418248, \old(Lg5_log)=10737418250, \old(Lg6_log)=10737418259, \old(Lg7_log)=10737418256, \old(ln2_hi_log)=10737418244, \old(ln2_lo_log)=10737418251, \old(log10_2hi_log10)=10737418254, \old(log10_2lo_log10)=10737418258, \old(two25_log)=10737418255, \old(two25_log10)=10737418257, \old(zero)=10737418261, \old(zero_log)=10737418253, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L162] float x = 0.0f; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L163] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L110] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={10737418247:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L111] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={10737418247:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L112] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={10737418247:0}, gf_u.word=10737418240, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L112] (hx) = gf_u.word VAL [\old(x)=0, gf_u={10737418247:0}, gf_u.word=10737418240, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L112] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=10737418245, \old(x)=0, gf_u={10737418247:0}, gf_u.word=10737418240, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L113] COND FALSE !(0) VAL [\old(x)=0, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L115] k = 0 VAL [\old(x)=0, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] RET return -two25_log10 / zero; VAL [\old(x)=0, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L163] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=10737418246, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L163] float res = __ieee754_log10f(x); [L166] CALL, EXPR isinf_float(res) VAL [\old(x)=10737418246, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L146] __int32_t ix; VAL [\old(x)=10737418246, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L148] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418246, gf_u={10737418247:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L149] FCALL gf_u.value = (x) VAL [\old(x)=10737418246, gf_u={10737418247:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L150] EXPR, FCALL gf_u.word VAL [\old(x)=10737418246, gf_u={10737418247:0}, gf_u.word=10737418240, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L150] (ix) = gf_u.word VAL [\old(x)=10737418246, gf_u={10737418247:0}, gf_u.word=10737418240, ivln10_log10=43429449201/100000000000, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L150] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418249, \old(x)=10737418246, gf_u={10737418247:0}, gf_u.word=10737418240, ivln10_log10=43429449201/100000000000, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L151] COND FALSE !(0) VAL [\old(x)=10737418246, ivln10_log10=43429449201/100000000000, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L152] ix &= 0x7fffffff [L153] RET return ((ix) == 0x7f800000L); VAL [\old(x)=10737418246, \result=0, ivln10_log10=43429449201/100000000000, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10737418246, zero=0, zero_log=0] [L166] EXPR isinf_float(res) VAL [isinf_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10737418246, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L166] COND TRUE !isinf_float(res) [L167] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10737418246, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 119 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 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=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 18:36:09,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:09,527 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:09,540 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:09,540 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:09,541 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:09,543 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:09,545 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:09,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:09,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:09,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:09,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:09,552 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:09,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:09,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:09,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:09,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:09,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:09,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:09,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:09,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:09,564 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:09,567 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:09,567 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:09,567 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:09,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:09,570 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:09,571 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:09,572 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:09,573 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:09,574 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:09,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:09,575 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:09,575 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:09,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:09,577 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:09,578 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:36:09,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:09,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:09,599 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:09,599 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:09,600 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:09,600 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:09,600 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:09,601 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:09,601 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:09,601 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:09,601 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:09,602 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:09,602 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:09,602 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:09,602 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:36:09,602 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:36:09,603 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:09,603 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:09,603 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:09,603 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:09,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:09,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:09,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:09,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:09,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:09,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:09,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:09,606 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:36:09,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:09,607 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:36:09,608 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:36:09,608 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 -> 643b85cfda98ac4fd84758bc794baabdbceeba64 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 18:36:09,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:09,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:09,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:09,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:09,705 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:09,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:10,054 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04f48d4ab/e8e76783873e44508f024e4b1d97dd98/FLAG5efc233de [2018-09-21 18:36:10,200 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:10,201 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:10,209 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04f48d4ab/e8e76783873e44508f024e4b1d97dd98/FLAG5efc233de [2018-09-21 18:36:10,224 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04f48d4ab/e8e76783873e44508f024e4b1d97dd98 [2018-09-21 18:36:10,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:10,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:10,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:10,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:10,239 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:10,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294241e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10, skipping insertion in model container [2018-09-21 18:36:10,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,256 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:10,562 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:10,589 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:10,630 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:10,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10 WrapperNode [2018-09-21 18:36:10,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:10,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:10,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:10,671 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:10,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (1/1) ... [2018-09-21 18:36:10,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:10,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:10,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:10,754 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:10,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (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 18:36:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:36:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:36:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:36:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:36:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:36:11,342 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:11,378 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:22,824 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:22,834 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:24,342 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:24,352 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:24,549 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:24,589 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:26,005 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:26,016 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:28,213 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:36:28,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:28 BoogieIcfgContainer [2018-09-21 18:36:28,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:36:28,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:36:28,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:36:28,219 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:36:28,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:10" (1/3) ... [2018-09-21 18:36:28,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d04785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:28, skipping insertion in model container [2018-09-21 18:36:28,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:10" (2/3) ... [2018-09-21 18:36:28,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d04785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:28, skipping insertion in model container [2018-09-21 18:36:28,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:28" (3/3) ... [2018-09-21 18:36:28,224 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a_true-unreach-call.c [2018-09-21 18:36:28,235 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:36:28,244 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:36:28,287 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:36:28,288 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:36:28,288 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:36:28,288 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:36:28,288 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:36:28,289 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:36:28,289 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:36:28,289 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:36:28,289 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:36:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-09-21 18:36:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:36:28,321 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:28,322 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:36:28,325 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:28,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2021389718, now seen corresponding path program 1 times [2018-09-21 18:36:28,335 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:28,335 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 18:36:28,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:28,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:28,688 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 18:36:28,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:28,717 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:28,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:36:28,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:36:28,739 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:36:28,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:36:28,743 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-09-21 18:36:28,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:28,782 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2018-09-21 18:36:28,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:36:28,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:36:28,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:28,803 INFO L225 Difference]: With dead ends: 118 [2018-09-21 18:36:28,808 INFO L226 Difference]: Without dead ends: 114 [2018-09-21 18:36:28,810 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 18:36:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-09-21 18:36:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-09-21 18:36:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-09-21 18:36:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2018-09-21 18:36:28,880 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 22 [2018-09-21 18:36:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:28,881 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2018-09-21 18:36:28,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:36:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2018-09-21 18:36:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:36:28,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:28,884 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] [2018-09-21 18:36:28,884 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:28,885 INFO L82 PathProgramCache]: Analyzing trace with hash -114975408, now seen corresponding path program 1 times [2018-09-21 18:36:28,886 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:28,887 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) [2018-09-21 18:36:28,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:29,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:29,615 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:36:29,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:36:29,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:36:29,779 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:29,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:29,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:29,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:29,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:36:30,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:36:30,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:30,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:30,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:30,053 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:30,438 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 18:36:30,439 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:30,454 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:30,454 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:36:30,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:36:30,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:36:30,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:36:30,461 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 12 states. [2018-09-21 18:36:32,076 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:36:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:34,900 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2018-09-21 18:36:34,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:36:34,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-09-21 18:36:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:34,905 INFO L225 Difference]: With dead ends: 119 [2018-09-21 18:36:34,905 INFO L226 Difference]: Without dead ends: 114 [2018-09-21 18:36:34,906 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:36:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-09-21 18:36:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-09-21 18:36:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-09-21 18:36:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2018-09-21 18:36:34,928 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 40 [2018-09-21 18:36:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:34,929 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2018-09-21 18:36:34,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:36:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2018-09-21 18:36:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:36:34,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:34,933 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] [2018-09-21 18:36:34,933 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:34,934 INFO L82 PathProgramCache]: Analyzing trace with hash 510246033, now seen corresponding path program 1 times [2018-09-21 18:36:34,935 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:34,935 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 18:36:34,947 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 18:36:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:35,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:35,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:36:35,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:36:35,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,315 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:35,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:36:35,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:36:35,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:35,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:35,556 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 18:36:35,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:35,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:35,572 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:36:35,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:36:35,572 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:36:35,573 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:36:35,573 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 8 states. [2018-09-21 18:36:37,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:37,263 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2018-09-21 18:36:37,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:36:37,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-09-21 18:36:37,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:37,270 INFO L225 Difference]: With dead ends: 103 [2018-09-21 18:36:37,270 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:36:37,271 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:36:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:36:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:36:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:36:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:36:37,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-21 18:36:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:37,273 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:36:37,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:36:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:36:37,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:36:37,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:36:37 BoogieIcfgContainer [2018-09-21 18:36:37,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:36:37,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:36:37,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:36:37,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:36:37,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:28" (3/4) ... [2018-09-21 18:36:37,287 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:36:37,295 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:36:37,295 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:36:37,295 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:36:37,295 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-09-21 18:36:37,296 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:36:37,306 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2018-09-21 18:36:37,307 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-21 18:36:37,307 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:36:37,308 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:36:37,415 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:36:37,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:36:37,416 INFO L168 Benchmark]: Toolchain (without parser) took 27187.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 951.8 MB in the beginning and 922.3 MB in the end (delta: 29.5 MB). Peak memory consumption was 199.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,417 INFO L168 Benchmark]: CDTParser took 0.18 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 18:36:37,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.23 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,420 INFO L168 Benchmark]: Boogie Preprocessor took 82.56 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,421 INFO L168 Benchmark]: RCFGBuilder took 17460.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,421 INFO L168 Benchmark]: TraceAbstraction took 9064.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 185.2 MB). Peak memory consumption was 185.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,422 INFO L168 Benchmark]: Witness Printer took 135.21 ms. Allocated memory is still 1.2 GB. Free memory was 929.4 MB in the beginning and 922.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:37,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 438.23 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 82.56 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 17460.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9064.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 185.2 MB). Peak memory consumption was 185.2 MB. Max. memory is 11.5 GB. * Witness Printer took 135.21 ms. Allocated memory is still 1.2 GB. Free memory was 929.4 MB in the beginning and 922.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 118 locations, 1 error locations. SAFE Result, 9.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 6.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 182 SDslu, 1508 SDs, 0 SdLazy, 221 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 5 QuantifiedInterpolants, 26868 SizeOfPredicates, 16 NumberOfNonLiveVariables, 361 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...