./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_1130a.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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 ............................................................................................................................................................................................................................................................................................................................................. 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 -ea -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_1130a.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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 17:43:11,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:43:11,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:43:11,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:43:11,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:43:11,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:43:11,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:43:11,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:43:11,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:43:11,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:43:11,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:43:11,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:43:11,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:43:11,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:43:11,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:43:11,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:43:11,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:43:11,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:43:11,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:43:11,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:43:11,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:43:11,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:43:11,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:43:11,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:43:11,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:43:11,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:43:11,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:43:11,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:43:11,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:43:11,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:43:11,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:43:11,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:43:11,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:43:11,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:43:11,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:43:11,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:43:11,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:43:11,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:43:11,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:43:11,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:43:11,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:43:11,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:43:11,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:43:11,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:43:11,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:43:11,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:43:11,486 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:43:11,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:43:11,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:43:11,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:43:11,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:43:11,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:43:11,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:43:11,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:43:11,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:43:11,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:43:11,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:43:11,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:43:11,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:43:11,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:43:11,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:43:11,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:43:11,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:43:11,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:11,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:43:11,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:43:11,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:43:11,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:43:11,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:43:11,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:43:11,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:43:11,493 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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 [2020-07-28 17:43:11,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:43:11,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:43:11,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:43:11,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:43:11,805 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:43:11,806 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-07-28 17:43:11,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08a419bc/c2ef1f9bc0924b96939ee3e0e3864c22/FLAG38d117109 [2020-07-28 17:43:12,310 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:43:12,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-07-28 17:43:12,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08a419bc/c2ef1f9bc0924b96939ee3e0e3864c22/FLAG38d117109 [2020-07-28 17:43:12,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08a419bc/c2ef1f9bc0924b96939ee3e0e3864c22 [2020-07-28 17:43:12,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:43:12,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:43:12,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:12,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:43:12,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:43:12,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:12" (1/1) ... [2020-07-28 17:43:12,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101db86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:12, skipping insertion in model container [2020-07-28 17:43:12,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:12" (1/1) ... [2020-07-28 17:43:12,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:43:12,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:43:13,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:13,016 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:43:13,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:13,156 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:43:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13 WrapperNode [2020-07-28 17:43:13,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:13,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:13,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:43:13,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:43:13,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:13,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:43:13,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:43:13,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:43:13,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (1/1) ... [2020-07-28 17:43:13,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:43:13,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:43:13,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:43:13,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:43:13,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (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 [2020-07-28 17:43:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:43:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:43:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:43:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:43:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:43:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:43:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:43:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-28 17:43:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:43:14,220 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:43:14,221 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:43:14,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:14 BoogieIcfgContainer [2020-07-28 17:43:14,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:43:14,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:43:14,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:43:14,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:43:14,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:43:12" (1/3) ... [2020-07-28 17:43:14,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a583c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:14, skipping insertion in model container [2020-07-28 17:43:14,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:13" (2/3) ... [2020-07-28 17:43:14,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a583c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:14, skipping insertion in model container [2020-07-28 17:43:14,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:14" (3/3) ... [2020-07-28 17:43:14,234 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-07-28 17:43:14,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:43:14,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:43:14,263 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:43:14,287 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:43:14,288 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:43:14,288 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:43:14,288 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:43:14,289 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:43:14,289 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:43:14,289 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:43:14,289 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:43:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-07-28 17:43:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:43:14,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:14,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:14,314 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:14,319 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2020-07-28 17:43:14,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:43:14,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871740208] [2020-07-28 17:43:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:43:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:14,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_fmod~0 := 1.0;call ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset := #Ultimate.allocOnStack(16);call write~init~real(0.0, ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset, 8);call write~init~real(~someUnaryDOUBLEoperation(0.0), ~#Zero_fmod~0.base, 8 + ~#Zero_fmod~0.offset, 8); {64#true} is VALID [2020-07-28 17:43:14,463 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#true} havoc main_#res;havoc main_#t~nondet18, main_#t~ret19, main_#t~ret20, main_#t~short21, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := 0.0;main_~y~0 := main_#t~nondet18;havoc main_#t~nondet18; {64#true} is VALID [2020-07-28 17:43:14,463 INFO L280 TraceCheckUtils]: 2: Hoare triple {64#true} assume ~someBinaryDOUBLEComparisonOperation(main_~y~0, 0.0) || ~someBinaryDOUBLEComparisonOperation(main_~y~0, 0.0);fmod_double_#in~x, fmod_double_#in~y := main_~x~0, main_~y~0;havoc fmod_double_#res;havoc fmod_double_#t~mem0, fmod_double_#t~union1, fmod_double_#t~mem2, fmod_double_#t~union3, fmod_double_~#ew_u~0.base, fmod_double_~#ew_u~0.offset, fmod_double_#t~mem4, fmod_double_#t~union5, fmod_double_#t~mem6, fmod_double_#t~union7, fmod_double_~#ew_u~1.base, fmod_double_~#ew_u~1.offset, fmod_double_#t~mem8, fmod_double_#t~mem10, fmod_double_#t~post9, fmod_double_#t~mem11, fmod_double_#t~mem12, fmod_double_#t~union13.lsw, fmod_double_#t~union13.msw, fmod_double_~#iw_u~0.base, fmod_double_~#iw_u~0.offset, fmod_double_#t~mem14, fmod_double_#t~union15.lsw, fmod_double_#t~union15.msw, fmod_double_~#iw_u~1.base, fmod_double_~#iw_u~1.offset, fmod_double_~x, fmod_double_~y, fmod_double_~n~0, fmod_double_~hx~0, fmod_double_~hy~0, fmod_double_~hz~0, fmod_double_~ix~0, fmod_double_~iy~0, fmod_double_~sx~0, fmod_double_~i~0, fmod_double_~lx~0, fmod_double_~ly~0, fmod_double_~lz~0;fmod_double_~x := fmod_double_#in~x;fmod_double_~y := fmod_double_#in~y;havoc fmod_double_~n~0;havoc fmod_double_~hx~0;havoc fmod_double_~hy~0;havoc fmod_double_~hz~0;havoc fmod_double_~ix~0;havoc fmod_double_~iy~0;havoc fmod_double_~sx~0;havoc fmod_double_~i~0;havoc fmod_double_~lx~0;havoc fmod_double_~ly~0;havoc fmod_double_~lz~0; {64#true} is VALID [2020-07-28 17:43:14,464 INFO L280 TraceCheckUtils]: 3: Hoare triple {64#true} assume !true; {65#false} is VALID [2020-07-28 17:43:14,465 INFO L280 TraceCheckUtils]: 4: Hoare triple {65#false} assume !true; {65#false} is VALID [2020-07-28 17:43:14,465 INFO L280 TraceCheckUtils]: 5: Hoare triple {65#false} fmod_double_~sx~0 := (if ~bitwiseAnd(fmod_double_~hx~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(fmod_double_~hx~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(fmod_double_~hx~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);fmod_double_~hx~0 := ~bitwiseXor(fmod_double_~hx~0, fmod_double_~sx~0);fmod_double_~hy~0 := ~bitwiseAnd(fmod_double_~hy~0, 2147483647); {65#false} is VALID [2020-07-28 17:43:14,466 INFO L280 TraceCheckUtils]: 6: Hoare triple {65#false} assume (0 == ~bitwiseOr(fmod_double_~hy~0, fmod_double_~ly~0) % 4294967296 || fmod_double_~hx~0 >= 2146435072) || ~bitwiseOr(fmod_double_~hy~0, ~bitwiseOr(fmod_double_~ly~0, -fmod_double_~ly~0) / 2147483648) % 4294967296 > 2146435072;fmod_double_#res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(fmod_double_~x, fmod_double_~y), ~someBinaryArithmeticDOUBLEoperation(fmod_double_~x, fmod_double_~y)); {65#false} is VALID [2020-07-28 17:43:14,466 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#false} main_#t~ret19 := fmod_double_#res;main_~res~0 := main_#t~ret19;havoc main_#t~ret19;main_#t~short21 := ~someBinaryDOUBLEComparisonOperation(main_~res~0, 0.0); {65#false} is VALID [2020-07-28 17:43:14,467 INFO L280 TraceCheckUtils]: 8: Hoare triple {65#false} assume !main_#t~short21; {65#false} is VALID [2020-07-28 17:43:14,467 INFO L280 TraceCheckUtils]: 9: Hoare triple {65#false} assume !main_#t~short21;havoc main_#t~short21;havoc main_#t~ret20; {65#false} is VALID [2020-07-28 17:43:14,468 INFO L280 TraceCheckUtils]: 10: Hoare triple {65#false} assume !false; {65#false} is VALID [2020-07-28 17:43:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:14,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871740208] [2020-07-28 17:43:14,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:14,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:43:14,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185609329] [2020-07-28 17:43:14,479 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:43:14,481 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:14,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:43:14,510 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:14,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:43:14,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:43:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:43:14,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:14,523 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-07-28 17:43:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:14,673 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2020-07-28 17:43:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:43:14,673 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:43:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2020-07-28 17:43:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2020-07-28 17:43:14,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 208 transitions. [2020-07-28 17:43:15,031 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:15,046 INFO L225 Difference]: With dead ends: 119 [2020-07-28 17:43:15,046 INFO L226 Difference]: Without dead ends: 57 [2020-07-28 17:43:15,050 INFO L675 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 [2020-07-28 17:43:15,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-28 17:43:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-28 17:43:15,100 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:15,100 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:15,101 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:15,101 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:15,108 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2020-07-28 17:43:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:15,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:15,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:15,111 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:15,111 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:15,119 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2020-07-28 17:43:15,119 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:15,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:15,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:15,121 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:15,121 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-28 17:43:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2020-07-28 17:43:15,129 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2020-07-28 17:43:15,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:15,129 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2020-07-28 17:43:15,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:43:15,131 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:15,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:15,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:43:15,132 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:15,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:15,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2020-07-28 17:43:15,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:43:15,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726307893] [2020-07-28 17:43:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:43:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:15,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:15,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:43:15,392 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:223) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:43:15,401 INFO L168 Benchmark]: Toolchain (without parser) took 2671.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 952.2 MB in the beginning and 966.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 127.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,403 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:15,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.60 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. [2020-07-28 17:43:15,408 INFO L168 Benchmark]: Boogie Preprocessor took 63.61 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. [2020-07-28 17:43:15,409 INFO L168 Benchmark]: RCFGBuilder took 928.03 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: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,410 INFO L168 Benchmark]: TraceAbstraction took 1170.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.2 MB in the end (delta: 93.1 MB). Peak memory consumption was 93.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.60 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 63.61 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 928.03 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: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1170.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.2 MB in the end (delta: 93.1 MB). Peak memory consumption was 93.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:43:17,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:43:17,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:43:17,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:43:17,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:43:17,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:43:17,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:43:17,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:43:17,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:43:17,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:43:17,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:43:17,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:43:17,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:43:17,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:43:17,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:43:17,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:43:17,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:43:17,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:43:17,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:43:17,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:43:17,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:43:17,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:43:17,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:43:17,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:43:17,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:43:17,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:43:17,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:43:17,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:43:17,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:43:17,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:43:17,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:43:17,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:43:17,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:43:17,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:43:17,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:43:17,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:43:17,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:43:17,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:43:17,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:43:17,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:43:17,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:43:17,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:43:17,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:43:17,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:43:17,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:43:17,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:43:17,463 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:43:17,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:43:17,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:43:17,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:43:17,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:43:17,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:43:17,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:43:17,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:43:17,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:43:17,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:43:17,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:43:17,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:43:17,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:43:17,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:43:17,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:43:17,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:43:17,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:43:17,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:43:17,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:17,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:43:17,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:43:17,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:43:17,470 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:43:17,470 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:43:17,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:43:17,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:43:17,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:43:17,471 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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 [2020-07-28 17:43:17,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:43:17,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:43:17,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:43:17,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:43:17,816 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:43:17,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-07-28 17:43:17,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b005f368a/994e36ea1cd44ddab8b7b63358f91158/FLAG1c230b1f5 [2020-07-28 17:43:18,354 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:43:18,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-07-28 17:43:18,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b005f368a/994e36ea1cd44ddab8b7b63358f91158/FLAG1c230b1f5 [2020-07-28 17:43:18,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b005f368a/994e36ea1cd44ddab8b7b63358f91158 [2020-07-28 17:43:18,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:43:18,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:43:18,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:18,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:43:18,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:43:18,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:18" (1/1) ... [2020-07-28 17:43:18,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe09d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:18, skipping insertion in model container [2020-07-28 17:43:18,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:18" (1/1) ... [2020-07-28 17:43:18,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:43:18,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:43:19,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:19,136 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:43:19,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:19,242 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:43:19,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19 WrapperNode [2020-07-28 17:43:19,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:19,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:19,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:43:19,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:43:19,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:19,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:43:19,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:43:19,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:43:19,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (1/1) ... [2020-07-28 17:43:19,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:43:19,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:43:19,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:43:19,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:43:19,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (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 [2020-07-28 17:43:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:43:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:43:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:43:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-07-28 17:43:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:43:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:43:19,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:43:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:43:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:43:23,285 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:43:23,285 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:43:23,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:23 BoogieIcfgContainer [2020-07-28 17:43:23,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:43:23,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:43:23,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:43:23,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:43:23,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:43:18" (1/3) ... [2020-07-28 17:43:23,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7244063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:23, skipping insertion in model container [2020-07-28 17:43:23,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:19" (2/3) ... [2020-07-28 17:43:23,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7244063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:23, skipping insertion in model container [2020-07-28 17:43:23,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:23" (3/3) ... [2020-07-28 17:43:23,298 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-07-28 17:43:23,305 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:43:23,312 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:43:23,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:43:23,346 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:43:23,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:43:23,346 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:43:23,347 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:43:23,347 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:43:23,347 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:43:23,347 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:43:23,348 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:43:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-07-28 17:43:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:43:23,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:23,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:23,367 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:23,372 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2020-07-28 17:43:23,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:23,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022830596] [2020-07-28 17:43:23,383 INFO L95 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 [2020-07-28 17:43:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:24,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:43:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:24,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:43:24,351 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_fmod~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);call ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset := #Ultimate.allocOnStack(16bv32);call write~init~intFLOATTYPE8(~Pluszero~DOUBLE(), ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset, 8bv32);call write~init~intFLOATTYPE8(~fp.neg~DOUBLE(~Pluszero~DOUBLE()), ~#Zero_fmod~0.base, ~bvadd32(8bv32, ~#Zero_fmod~0.offset), 8bv32); {64#true} is VALID [2020-07-28 17:43:24,352 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#true} havoc main_#res;havoc main_#t~nondet18, main_#t~ret19, main_#t~ret20, main_#t~short21, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := ~Pluszero~DOUBLE();main_~y~0 := main_#t~nondet18;havoc main_#t~nondet18; {64#true} is VALID [2020-07-28 17:43:24,353 INFO L280 TraceCheckUtils]: 2: Hoare triple {64#true} assume ~fp.lt~DOUBLE(main_~y~0, ~Pluszero~DOUBLE()) || ~fp.gt~DOUBLE(main_~y~0, ~Pluszero~DOUBLE());fmod_double_#in~x, fmod_double_#in~y := main_~x~0, main_~y~0;havoc fmod_double_#res;havoc fmod_double_#t~mem0, fmod_double_#t~union1, fmod_double_#t~mem2, fmod_double_#t~union3, fmod_double_~#ew_u~0.base, fmod_double_~#ew_u~0.offset, fmod_double_#t~mem4, fmod_double_#t~union5, fmod_double_#t~mem6, fmod_double_#t~union7, fmod_double_~#ew_u~1.base, fmod_double_~#ew_u~1.offset, fmod_double_#t~mem8, fmod_double_#t~mem10, fmod_double_#t~post9, fmod_double_#t~mem11, fmod_double_#t~mem12, fmod_double_#t~union13.lsw, fmod_double_#t~union13.msw, fmod_double_~#iw_u~0.base, fmod_double_~#iw_u~0.offset, fmod_double_#t~mem14, fmod_double_#t~union15.lsw, fmod_double_#t~union15.msw, fmod_double_~#iw_u~1.base, fmod_double_~#iw_u~1.offset, fmod_double_~x, fmod_double_~y, fmod_double_~n~0, fmod_double_~hx~0, fmod_double_~hy~0, fmod_double_~hz~0, fmod_double_~ix~0, fmod_double_~iy~0, fmod_double_~sx~0, fmod_double_~i~0, fmod_double_~lx~0, fmod_double_~ly~0, fmod_double_~lz~0;fmod_double_~x := fmod_double_#in~x;fmod_double_~y := fmod_double_#in~y;havoc fmod_double_~n~0;havoc fmod_double_~hx~0;havoc fmod_double_~hy~0;havoc fmod_double_~hz~0;havoc fmod_double_~ix~0;havoc fmod_double_~iy~0;havoc fmod_double_~sx~0;havoc fmod_double_~i~0;havoc fmod_double_~lx~0;havoc fmod_double_~ly~0;havoc fmod_double_~lz~0; {64#true} is VALID [2020-07-28 17:43:24,353 INFO L280 TraceCheckUtils]: 3: Hoare triple {64#true} assume !true; {64#true} is VALID [2020-07-28 17:43:24,355 INFO L280 TraceCheckUtils]: 4: Hoare triple {64#true} assume !true; {65#false} is VALID [2020-07-28 17:43:24,356 INFO L280 TraceCheckUtils]: 5: Hoare triple {65#false} fmod_double_~sx~0 := ~bvand32(2147483648bv32, fmod_double_~hx~0);fmod_double_~hx~0 := ~bvxor32(fmod_double_~hx~0, fmod_double_~sx~0);fmod_double_~hy~0 := ~bvand32(2147483647bv32, fmod_double_~hy~0); {65#false} is VALID [2020-07-28 17:43:24,356 INFO L280 TraceCheckUtils]: 6: Hoare triple {65#false} assume (0bv32 == ~bvor32(fmod_double_~hy~0, fmod_double_~ly~0) || ~bvsge32(fmod_double_~hx~0, 2146435072bv32)) || ~bvugt32(~bvor32(fmod_double_~hy~0, ~bvlshr32(~bvor32(fmod_double_~ly~0, ~bvneg32(fmod_double_~ly~0)), 31bv32)), 2146435072bv32);fmod_double_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.mul~DOUBLE(currentRoundingMode, fmod_double_~x, fmod_double_~y), ~fp.mul~DOUBLE(currentRoundingMode, fmod_double_~x, fmod_double_~y)); {65#false} is VALID [2020-07-28 17:43:24,356 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#false} main_#t~ret19 := fmod_double_#res;main_~res~0 := main_#t~ret19;havoc main_#t~ret19;main_#t~short21 := ~fp.eq~DOUBLE(main_~res~0, ~Pluszero~DOUBLE()); {65#false} is VALID [2020-07-28 17:43:24,357 INFO L280 TraceCheckUtils]: 8: Hoare triple {65#false} assume !main_#t~short21; {65#false} is VALID [2020-07-28 17:43:24,357 INFO L280 TraceCheckUtils]: 9: Hoare triple {65#false} assume !main_#t~short21;havoc main_#t~short21;havoc main_#t~ret20; {65#false} is VALID [2020-07-28 17:43:24,358 INFO L280 TraceCheckUtils]: 10: Hoare triple {65#false} assume !false; {65#false} is VALID [2020-07-28 17:43:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:24,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:43:24,373 INFO L280 TraceCheckUtils]: 10: Hoare triple {65#false} assume !false; {65#false} is VALID [2020-07-28 17:43:24,374 INFO L280 TraceCheckUtils]: 9: Hoare triple {65#false} assume !main_#t~short21;havoc main_#t~short21;havoc main_#t~ret20; {65#false} is VALID [2020-07-28 17:43:24,375 INFO L280 TraceCheckUtils]: 8: Hoare triple {65#false} assume !main_#t~short21; {65#false} is VALID [2020-07-28 17:43:24,376 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#false} main_#t~ret19 := fmod_double_#res;main_~res~0 := main_#t~ret19;havoc main_#t~ret19;main_#t~short21 := ~fp.eq~DOUBLE(main_~res~0, ~Pluszero~DOUBLE()); {65#false} is VALID [2020-07-28 17:43:24,376 INFO L280 TraceCheckUtils]: 6: Hoare triple {65#false} assume (0bv32 == ~bvor32(fmod_double_~hy~0, fmod_double_~ly~0) || ~bvsge32(fmod_double_~hx~0, 2146435072bv32)) || ~bvugt32(~bvor32(fmod_double_~hy~0, ~bvlshr32(~bvor32(fmod_double_~ly~0, ~bvneg32(fmod_double_~ly~0)), 31bv32)), 2146435072bv32);fmod_double_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.mul~DOUBLE(currentRoundingMode, fmod_double_~x, fmod_double_~y), ~fp.mul~DOUBLE(currentRoundingMode, fmod_double_~x, fmod_double_~y)); {65#false} is VALID [2020-07-28 17:43:24,377 INFO L280 TraceCheckUtils]: 5: Hoare triple {65#false} fmod_double_~sx~0 := ~bvand32(2147483648bv32, fmod_double_~hx~0);fmod_double_~hx~0 := ~bvxor32(fmod_double_~hx~0, fmod_double_~sx~0);fmod_double_~hy~0 := ~bvand32(2147483647bv32, fmod_double_~hy~0); {65#false} is VALID [2020-07-28 17:43:24,377 INFO L280 TraceCheckUtils]: 4: Hoare triple {64#true} assume !true; {65#false} is VALID [2020-07-28 17:43:24,378 INFO L280 TraceCheckUtils]: 3: Hoare triple {64#true} assume !true; {64#true} is VALID [2020-07-28 17:43:24,378 INFO L280 TraceCheckUtils]: 2: Hoare triple {64#true} assume ~fp.lt~DOUBLE(main_~y~0, ~Pluszero~DOUBLE()) || ~fp.gt~DOUBLE(main_~y~0, ~Pluszero~DOUBLE());fmod_double_#in~x, fmod_double_#in~y := main_~x~0, main_~y~0;havoc fmod_double_#res;havoc fmod_double_#t~mem0, fmod_double_#t~union1, fmod_double_#t~mem2, fmod_double_#t~union3, fmod_double_~#ew_u~0.base, fmod_double_~#ew_u~0.offset, fmod_double_#t~mem4, fmod_double_#t~union5, fmod_double_#t~mem6, fmod_double_#t~union7, fmod_double_~#ew_u~1.base, fmod_double_~#ew_u~1.offset, fmod_double_#t~mem8, fmod_double_#t~mem10, fmod_double_#t~post9, fmod_double_#t~mem11, fmod_double_#t~mem12, fmod_double_#t~union13.lsw, fmod_double_#t~union13.msw, fmod_double_~#iw_u~0.base, fmod_double_~#iw_u~0.offset, fmod_double_#t~mem14, fmod_double_#t~union15.lsw, fmod_double_#t~union15.msw, fmod_double_~#iw_u~1.base, fmod_double_~#iw_u~1.offset, fmod_double_~x, fmod_double_~y, fmod_double_~n~0, fmod_double_~hx~0, fmod_double_~hy~0, fmod_double_~hz~0, fmod_double_~ix~0, fmod_double_~iy~0, fmod_double_~sx~0, fmod_double_~i~0, fmod_double_~lx~0, fmod_double_~ly~0, fmod_double_~lz~0;fmod_double_~x := fmod_double_#in~x;fmod_double_~y := fmod_double_#in~y;havoc fmod_double_~n~0;havoc fmod_double_~hx~0;havoc fmod_double_~hy~0;havoc fmod_double_~hz~0;havoc fmod_double_~ix~0;havoc fmod_double_~iy~0;havoc fmod_double_~sx~0;havoc fmod_double_~i~0;havoc fmod_double_~lx~0;havoc fmod_double_~ly~0;havoc fmod_double_~lz~0; {64#true} is VALID [2020-07-28 17:43:24,378 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#true} havoc main_#res;havoc main_#t~nondet18, main_#t~ret19, main_#t~ret20, main_#t~short21, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := ~Pluszero~DOUBLE();main_~y~0 := main_#t~nondet18;havoc main_#t~nondet18; {64#true} is VALID [2020-07-28 17:43:24,379 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_fmod~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);call ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset := #Ultimate.allocOnStack(16bv32);call write~init~intFLOATTYPE8(~Pluszero~DOUBLE(), ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset, 8bv32);call write~init~intFLOATTYPE8(~fp.neg~DOUBLE(~Pluszero~DOUBLE()), ~#Zero_fmod~0.base, ~bvadd32(8bv32, ~#Zero_fmod~0.offset), 8bv32); {64#true} is VALID [2020-07-28 17:43:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:24,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022830596] [2020-07-28 17:43:24,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:24,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:43:24,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055700258] [2020-07-28 17:43:24,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:43:24,389 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:24,392 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:43:26,320 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:26,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:43:26,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:43:26,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:43:26,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:26,331 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-07-28 17:43:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:29,768 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2020-07-28 17:43:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:43:29,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:43:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2020-07-28 17:43:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2020-07-28 17:43:29,797 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 208 transitions. [2020-07-28 17:43:34,406 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:34,422 INFO L225 Difference]: With dead ends: 119 [2020-07-28 17:43:34,423 INFO L226 Difference]: Without dead ends: 57 [2020-07-28 17:43:34,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:34,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-28 17:43:34,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-28 17:43:34,469 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:34,469 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:34,470 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:34,471 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:34,480 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2020-07-28 17:43:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:34,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:34,482 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:34,483 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:34,484 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-28 17:43:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:34,493 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2020-07-28 17:43:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:34,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:34,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:34,495 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:34,495 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-28 17:43:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2020-07-28 17:43:34,501 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2020-07-28 17:43:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:34,501 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2020-07-28 17:43:34,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-07-28 17:43:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:43:34,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:34,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:34,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:43:34,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:34,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2020-07-28 17:43:34,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:34,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863652014] [2020-07-28 17:43:34,722 INFO L95 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 [2020-07-28 17:43:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:35,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:36,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:37,020 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:43:37,021 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:43:37,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:43:37,263 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:43:37,263 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:43:37,263 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:37,264 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:37,264 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-28 17:43:37,264 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-28 17:43:37,264 WARN L170 areAnnotationChecker]: L185-2 has no Hoare annotation [2020-07-28 17:43:37,265 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-28 17:43:37,265 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-28 17:43:37,265 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-28 17:43:37,265 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-28 17:43:37,265 WARN L170 areAnnotationChecker]: L196 has no Hoare annotation [2020-07-28 17:43:37,266 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-28 17:43:37,266 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-28 17:43:37,267 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-28 17:43:37,267 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:43:37,267 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:43:37,267 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:43:37,268 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2020-07-28 17:43:37,268 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:43:37,268 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:43:37,268 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:43:37,268 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:43:37,269 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:43:37,269 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:43:37,269 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:43:37,269 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:43:37,270 WARN L170 areAnnotationChecker]: L166-2 has no Hoare annotation [2020-07-28 17:43:37,270 WARN L170 areAnnotationChecker]: L166-2 has no Hoare annotation [2020-07-28 17:43:37,270 WARN L170 areAnnotationChecker]: L190-2 has no Hoare annotation [2020-07-28 17:43:37,270 WARN L170 areAnnotationChecker]: L190-2 has no Hoare annotation [2020-07-28 17:43:37,270 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:43:37,271 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:43:37,271 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-28 17:43:37,271 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-28 17:43:37,271 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 17:43:37,271 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 17:43:37,272 WARN L170 areAnnotationChecker]: L166-1 has no Hoare annotation [2020-07-28 17:43:37,272 WARN L170 areAnnotationChecker]: L166-1 has no Hoare annotation [2020-07-28 17:43:37,272 WARN L170 areAnnotationChecker]: L166-3 has no Hoare annotation [2020-07-28 17:43:37,272 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2020-07-28 17:43:37,273 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2020-07-28 17:43:37,273 WARN L170 areAnnotationChecker]: L55-3 has no Hoare annotation [2020-07-28 17:43:37,273 WARN L170 areAnnotationChecker]: L55-3 has no Hoare annotation [2020-07-28 17:43:37,273 WARN L170 areAnnotationChecker]: L55-3 has no Hoare annotation [2020-07-28 17:43:37,273 WARN L170 areAnnotationChecker]: L58-3 has no Hoare annotation [2020-07-28 17:43:37,274 WARN L170 areAnnotationChecker]: L58-3 has no Hoare annotation [2020-07-28 17:43:37,274 WARN L170 areAnnotationChecker]: L58-3 has no Hoare annotation [2020-07-28 17:43:37,274 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:43:37,274 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:43:37,275 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-28 17:43:37,275 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-28 17:43:37,275 WARN L170 areAnnotationChecker]: L172 has no Hoare annotation [2020-07-28 17:43:37,275 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2020-07-28 17:43:37,275 WARN L170 areAnnotationChecker]: L58-2 has no Hoare annotation [2020-07-28 17:43:37,276 WARN L170 areAnnotationChecker]: L66-3 has no Hoare annotation [2020-07-28 17:43:37,276 WARN L170 areAnnotationChecker]: L66-3 has no Hoare annotation [2020-07-28 17:43:37,276 WARN L170 areAnnotationChecker]: L66-3 has no Hoare annotation [2020-07-28 17:43:37,276 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2020-07-28 17:43:37,277 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2020-07-28 17:43:37,277 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2020-07-28 17:43:37,277 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-28 17:43:37,277 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-28 17:43:37,277 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-28 17:43:37,278 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-28 17:43:37,278 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:43:37,278 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-28 17:43:37,279 WARN L170 areAnnotationChecker]: L91-2 has no Hoare annotation [2020-07-28 17:43:37,279 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-28 17:43:37,279 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-28 17:43:37,279 WARN L170 areAnnotationChecker]: L106-1 has no Hoare annotation [2020-07-28 17:43:37,280 WARN L170 areAnnotationChecker]: L106-1 has no Hoare annotation [2020-07-28 17:43:37,280 WARN L170 areAnnotationChecker]: L101-3 has no Hoare annotation [2020-07-28 17:43:37,280 WARN L170 areAnnotationChecker]: L101-1 has no Hoare annotation [2020-07-28 17:43:37,280 WARN L170 areAnnotationChecker]: L101-1 has no Hoare annotation [2020-07-28 17:43:37,280 WARN L170 areAnnotationChecker]: L118 has no Hoare annotation [2020-07-28 17:43:37,281 WARN L170 areAnnotationChecker]: L118 has no Hoare annotation [2020-07-28 17:43:37,281 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2020-07-28 17:43:37,281 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2020-07-28 17:43:37,281 WARN L170 areAnnotationChecker]: L118-2 has no Hoare annotation [2020-07-28 17:43:37,281 WARN L170 areAnnotationChecker]: L118-2 has no Hoare annotation [2020-07-28 17:43:37,282 WARN L170 areAnnotationChecker]: L104-2 has no Hoare annotation [2020-07-28 17:43:37,282 WARN L170 areAnnotationChecker]: L104-2 has no Hoare annotation [2020-07-28 17:43:37,282 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2020-07-28 17:43:37,282 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2020-07-28 17:43:37,283 WARN L170 areAnnotationChecker]: L110 has no Hoare annotation [2020-07-28 17:43:37,283 WARN L170 areAnnotationChecker]: L110 has no Hoare annotation [2020-07-28 17:43:37,283 WARN L170 areAnnotationChecker]: L127-2 has no Hoare annotation [2020-07-28 17:43:37,283 WARN L170 areAnnotationChecker]: L127-2 has no Hoare annotation [2020-07-28 17:43:37,284 WARN L170 areAnnotationChecker]: L127-2 has no Hoare annotation [2020-07-28 17:43:37,284 WARN L170 areAnnotationChecker]: L127-3 has no Hoare annotation [2020-07-28 17:43:37,284 WARN L170 areAnnotationChecker]: L127-3 has no Hoare annotation [2020-07-28 17:43:37,284 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2020-07-28 17:43:37,284 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2020-07-28 17:43:37,285 WARN L170 areAnnotationChecker]: L142 has no Hoare annotation [2020-07-28 17:43:37,285 WARN L170 areAnnotationChecker]: L142 has no Hoare annotation [2020-07-28 17:43:37,285 WARN L170 areAnnotationChecker]: L134-1 has no Hoare annotation [2020-07-28 17:43:37,285 WARN L170 areAnnotationChecker]: L134-1 has no Hoare annotation [2020-07-28 17:43:37,286 WARN L170 areAnnotationChecker]: L132 has no Hoare annotation [2020-07-28 17:43:37,286 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2020-07-28 17:43:37,287 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2020-07-28 17:43:37,287 WARN L170 areAnnotationChecker]: L145 has no Hoare annotation [2020-07-28 17:43:37,288 WARN L170 areAnnotationChecker]: L145 has no Hoare annotation [2020-07-28 17:43:37,289 WARN L170 areAnnotationChecker]: L152 has no Hoare annotation [2020-07-28 17:43:37,289 WARN L170 areAnnotationChecker]: L152 has no Hoare annotation [2020-07-28 17:43:37,289 WARN L170 areAnnotationChecker]: L152-2 has no Hoare annotation [2020-07-28 17:43:37,289 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:43:37,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:43:37 BoogieIcfgContainer [2020-07-28 17:43:37,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:43:37,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:43:37,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:43:37,294 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:43:37,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:23" (3/4) ... [2020-07-28 17:43:37,297 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:43:37,399 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:43:37,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:43:37,402 INFO L168 Benchmark]: Toolchain (without parser) took 18693.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.2 MB in the beginning and 939.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 169.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,403 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:37,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.03 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,405 INFO L168 Benchmark]: Boogie Preprocessor took 54.15 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. [2020-07-28 17:43:37,406 INFO L168 Benchmark]: RCFGBuilder took 3913.31 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: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,407 INFO L168 Benchmark]: TraceAbstraction took 14002.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,407 INFO L168 Benchmark]: Witness Printer took 106.12 ms. Allocated memory is still 1.2 GB. Free memory was 946.0 MB in the beginning and 939.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:37,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 531.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.03 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.15 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 3913.31 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: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14002.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. * Witness Printer took 106.12 ms. Allocated memory is still 1.2 GB. Free memory was 946.0 MB in the beginning and 939.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 191]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1.0, Zero_fmod={2:0}] [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1.0, Zero_fmod={2:0}] [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 1.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...