./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 34004772e6a1e54917776a817538fd6c8fd28f94 ............................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 34004772e6a1e54917776a817538fd6c8fd28f94 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:47:53,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:47:53,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:47:53,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:47:53,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:47:53,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:47:53,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:47:53,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:47:53,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:47:53,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:47:53,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:47:53,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:47:53,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:47:53,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:47:53,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:47:53,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:47:53,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:47:53,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:47:53,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:47:53,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:47:53,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:47:53,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:47:53,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:47:53,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:47:53,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:47:53,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:47:53,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:47:53,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:47:53,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:47:53,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:47:53,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:47:53,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:47:53,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:47:53,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:47:53,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:47:53,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:47:53,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:47:53,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:47:53,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:47:53,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:47:53,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:47:53,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:47:53,277 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:47:53,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:47:53,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:47:53,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:47:53,282 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:47:53,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:47:53,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:47:53,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:47:53,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:47:53,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:47:53,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:47:53,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:47:53,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:47:53,287 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:47:53,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:47:53,288 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:47:53,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:47:53,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:47:53,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:47:53,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:47:53,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:47:53,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:47:53,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:47:53,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:47:53,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:47:53,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:47:53,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:47:53,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:47:53,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:47:53,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-11-28 16:47:53,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:47:53,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:47:53,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:47:53,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:47:53,622 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:47:53,623 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-11-28 16:47:53,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eac0dee/e484e8402eb04fabb639663b7e7af361/FLAGf3e7dc1f8 [2019-11-28 16:47:54,209 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:47:54,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-11-28 16:47:54,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eac0dee/e484e8402eb04fabb639663b7e7af361/FLAGf3e7dc1f8 [2019-11-28 16:47:54,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eac0dee/e484e8402eb04fabb639663b7e7af361 [2019-11-28 16:47:54,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:47:54,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:47:54,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:47:54,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:47:54,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:47:54,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:54" (1/1) ... [2019-11-28 16:47:54,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f61f9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:54, skipping insertion in model container [2019-11-28 16:47:54,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:54" (1/1) ... [2019-11-28 16:47:54,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:47:54,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:47:54,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:47:54,987 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:47:55,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:47:55,068 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:47:55,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55 WrapperNode [2019-11-28 16:47:55,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:47:55,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:47:55,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:47:55,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:47:55,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:47:55,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:47:55,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:47:55,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:47:55,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2019-11-28 16:47:55,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:47:55,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:47:55,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:47:55,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:47:55,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (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 [2019-11-28 16:47:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:47:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:47:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:47:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:47:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:47:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:47:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:47:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-28 16:47:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:47:55,848 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:47:55,849 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-28 16:47:55,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55 BoogieIcfgContainer [2019-11-28 16:47:55,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:47:55,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:47:55,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:47:55,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:47:55,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:54" (1/3) ... [2019-11-28 16:47:55,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e76b684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2019-11-28 16:47:55,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (2/3) ... [2019-11-28 16:47:55,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e76b684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2019-11-28 16:47:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55" (3/3) ... [2019-11-28 16:47:55,859 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-11-28 16:47:55,870 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:47:55,880 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:47:55,893 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:47:55,918 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:47:55,919 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:47:55,919 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:47:55,919 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:47:55,920 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:47:55,920 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:47:55,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:47:55,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:47:55,939 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-11-28 16:47:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:47:55,947 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:47:55,948 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:47:55,948 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:47:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:47:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2019-11-28 16:47:55,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:47:55,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886974426] [2019-11-28 16:47:55,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:47:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:47:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:47:56,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886974426] [2019-11-28 16:47:56,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:47:56,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:47:56,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817710932] [2019-11-28 16:47:56,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:47:56,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:47:56,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:47:56,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:47:56,135 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-11-28 16:47:56,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:47:56,155 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2019-11-28 16:47:56,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:47:56,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-28 16:47:56,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:47:56,166 INFO L225 Difference]: With dead ends: 84 [2019-11-28 16:47:56,167 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 16:47:56,171 INFO L630 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 [2019-11-28 16:47:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 16:47:56,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-28 16:47:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-28 16:47:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-11-28 16:47:56,207 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2019-11-28 16:47:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:47:56,208 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-11-28 16:47:56,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:47:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-11-28 16:47:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:47:56,209 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:47:56,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:47:56,210 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:47:56,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:47:56,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2019-11-28 16:47:56,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:47:56,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784797409] [2019-11-28 16:47:56,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:47:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:47:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:47:56,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:47:56,525 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:47:56,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:47:56 BoogieIcfgContainer [2019-11-28 16:47:56,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:47:56,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:47:56,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:47:56,609 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:47:56,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55" (3/4) ... [2019-11-28 16:47:56,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:47:56,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:47:56,619 INFO L168 Benchmark]: Toolchain (without parser) took 2068.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -95.0 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:47:56,620 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:47:56,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:47:56,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.45 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. [2019-11-28 16:47:56,625 INFO L168 Benchmark]: Boogie Preprocessor took 66.37 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:47:56,626 INFO L168 Benchmark]: RCFGBuilder took 620.93 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:47:56,627 INFO L168 Benchmark]: TraceAbstraction took 756.73 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:47:56,628 INFO L168 Benchmark]: Witness Printer took 6.94 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. [2019-11-28 16:47:56,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 516.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.45 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. * Boogie Preprocessor took 66.37 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 620.93 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 756.73 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.94 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: 158]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 141, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of bitwiseAnd at line 140, overapproximation of someBinaryDOUBLEComparisonOperation at line 70. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L70] COND TRUE x > o_threshold_exp [L71] return huge_exp * huge_exp; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 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=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-11-28 16:47:58,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:47:58,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:47:58,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:47:58,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:47:58,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:47:58,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:47:58,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:47:58,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:47:58,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:47:58,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:47:58,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:47:58,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:47:58,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:47:58,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:47:58,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:47:58,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:47:58,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:47:58,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:47:58,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:47:58,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:47:58,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:47:58,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:47:58,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:47:58,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:47:58,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:47:58,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:47:58,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:47:58,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:47:58,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:47:58,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:47:58,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:47:58,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:47:58,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:47:58,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:47:58,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:47:58,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:47:58,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:47:58,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:47:58,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:47:58,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:47:58,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:47:58,752 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:47:58,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:47:58,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:47:58,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:47:58,754 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:47:58,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:47:58,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:47:58,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:47:58,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:47:58,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:47:58,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:47:58,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:47:58,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:47:58,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:47:58,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:47:58,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:47:58,758 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:47:58,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:47:58,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:47:58,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:47:58,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:47:58,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:47:58,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:47:58,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:47:58,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:47:58,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:47:58,761 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:47:58,761 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:47:58,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:47:58,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:47:58,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:47:58,762 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-11-28 16:47:59,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:47:59,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:47:59,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:47:59,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:47:59,106 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:47:59,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-11-28 16:47:59,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efff26fd5/6d06e8e9ab0b482db2af7527c6d3527c/FLAGa392502ee [2019-11-28 16:47:59,678 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:47:59,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-11-28 16:47:59,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efff26fd5/6d06e8e9ab0b482db2af7527c6d3527c/FLAGa392502ee [2019-11-28 16:48:00,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efff26fd5/6d06e8e9ab0b482db2af7527c6d3527c [2019-11-28 16:48:00,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:48:00,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:48:00,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:00,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:48:00,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:48:00,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76344466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00, skipping insertion in model container [2019-11-28 16:48:00,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:48:00,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:48:00,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:00,423 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:48:00,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:00,511 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:48:00,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00 WrapperNode [2019-11-28 16:48:00,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:00,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:00,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:48:00,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:48:00,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:00,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:48:00,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:48:00,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:48:00,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (1/1) ... [2019-11-28 16:48:00,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:48:00,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:48:00,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:48:00,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:48:00,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (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 [2019-11-28 16:48:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:48:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:48:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:48:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-28 16:48:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:48:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:48:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:48:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:48:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:48:13,256 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:48:13,256 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-28 16:48:13,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13 BoogieIcfgContainer [2019-11-28 16:48:13,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:48:13,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:48:13,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:48:13,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:48:13,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:00" (1/3) ... [2019-11-28 16:48:13,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d709f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:13, skipping insertion in model container [2019-11-28 16:48:13,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:00" (2/3) ... [2019-11-28 16:48:13,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d709f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:13, skipping insertion in model container [2019-11-28 16:48:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13" (3/3) ... [2019-11-28 16:48:13,268 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-11-28 16:48:13,280 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:48:13,289 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:48:13,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:48:13,334 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:48:13,334 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:48:13,334 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:48:13,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:48:13,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:48:13,335 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:48:13,335 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:48:13,335 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:48:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-11-28 16:48:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:48:13,355 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:13,356 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:13,356 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2019-11-28 16:48:13,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:13,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539785098] [2019-11-28 16:48:13,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 16:48:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:13,805 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:48:13,809 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:48:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:13,822 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:48:13,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:13,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539785098] [2019-11-28 16:48:13,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:13,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:48:13,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42070206] [2019-11-28 16:48:13,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:48:13,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:48:13,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:48:13,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:48:13,850 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-11-28 16:48:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:13,870 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2019-11-28 16:48:13,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:48:13,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-28 16:48:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:13,882 INFO L225 Difference]: With dead ends: 84 [2019-11-28 16:48:13,883 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 16:48:13,887 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:48:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 16:48:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-28 16:48:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-28 16:48:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-11-28 16:48:13,928 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2019-11-28 16:48:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:13,928 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-11-28 16:48:13,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:48:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-11-28 16:48:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:48:13,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:13,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:14,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:48:14,139 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:14,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2019-11-28 16:48:14,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:14,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035920242] [2019-11-28 16:48:14,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 16:48:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:14,567 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:48:14,569 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:48:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:14,708 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:48:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:14,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035920242] [2019-11-28 16:48:14,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:14,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-28 16:48:14,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746551704] [2019-11-28 16:48:14,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 16:48:14,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:48:14,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 16:48:14,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 16:48:14,854 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2019-11-28 16:48:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:15,043 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-11-28 16:48:15,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:48:15,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-28 16:48:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:15,045 INFO L225 Difference]: With dead ends: 48 [2019-11-28 16:48:15,045 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 16:48:15,046 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:48:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 16:48:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 16:48:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 16:48:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-28 16:48:15,052 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2019-11-28 16:48:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:15,052 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-28 16:48:15,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 16:48:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-28 16:48:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:48:15,053 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:15,053 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:15,268 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:48:15,269 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:15,270 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2019-11-28 16:48:15,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:15,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045654093] [2019-11-28 16:48:15,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 16:48:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:15,801 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 16:48:15,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:48:15,953 INFO L377 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 15 treesize of output 13 [2019-11-28 16:48:15,966 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 16:48:15,971 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 16:48:15,971 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 16:48:16,003 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 16:48:16,004 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-28 16:48:16,005 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2019-11-28 16:48:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:16,057 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:48:16,098 INFO L377 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 19 treesize of output 17 [2019-11-28 16:48:16,104 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 16:48:16,106 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 16:48:16,107 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 16:48:16,120 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 16:48:16,121 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 16:48:16,122 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2019-11-28 16:48:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:16,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045654093] [2019-11-28 16:48:16,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:16,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:48:16,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643162016] [2019-11-28 16:48:16,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:48:16,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:48:16,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:48:16,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:48:16,261 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2019-11-28 16:48:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:16,496 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-11-28 16:48:16,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:48:16,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-28 16:48:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:16,500 INFO L225 Difference]: With dead ends: 28 [2019-11-28 16:48:16,501 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 16:48:16,501 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-28 16:48:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 16:48:16,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 16:48:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 16:48:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-28 16:48:16,512 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-11-28 16:48:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:16,512 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-28 16:48:16,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:48:16,513 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-28 16:48:16,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 16:48:16,514 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:16,514 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:16,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:48:16,729 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2019-11-28 16:48:16,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:16,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265899333] [2019-11-28 16:48:16,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 16:48:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:17,650 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:48:17,650 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:48:17,851 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 16:48:17,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:48:17 BoogieIcfgContainer [2019-11-28 16:48:17,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:48:17,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:48:17,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:48:17,951 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:48:17,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13" (3/4) ... [2019-11-28 16:48:17,954 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:48:18,064 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:48:18,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:48:18,067 INFO L168 Benchmark]: Toolchain (without parser) took 18039.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 935.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 162.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,067 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:48:18,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,070 INFO L168 Benchmark]: Boogie Preprocessor took 48.23 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. [2019-11-28 16:48:18,071 INFO L168 Benchmark]: RCFGBuilder took 12641.32 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: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,071 INFO L168 Benchmark]: TraceAbstraction took 4691.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.8 MB in the end (delta: 143.2 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,072 INFO L168 Benchmark]: Witness Printer took 114.44 ms. Allocated memory is still 1.2 GB. Free memory was 941.8 MB in the beginning and 935.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:18,075 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 483.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.23 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. * RCFGBuilder took 12641.32 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: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4691.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.8 MB in the end (delta: 143.2 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. * Witness Printer took 114.44 ms. Allocated memory is still 1.2 GB. Free memory was 941.8 MB in the beginning and 935.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 158]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L58] COND TRUE hx >= 0x7ff00000 [L59] __uint32_t lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L61] ieee_double_shape_type gl_u; [L62] gl_u.value = (x) [L63] EXPR gl_u.parts.lsw [L63] (lx) = gl_u.parts.lsw [L65] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] return (xsb == 0) ? x : 0.0; [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 109 SDslu, 9 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...