./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0981.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_0981.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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ......................................................................................................................................................................................................................................................................................................................................... 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_0981.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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:41:41,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:41,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:41,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:41,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:41,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:41,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:41,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:41,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:41,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:41,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:41,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:41,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:41,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:41,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:41,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:41,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:41,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:41,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:41,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:41,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:41,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:41,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:41,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:41,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:41,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:41,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:41,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:41,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:41,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:41,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:41,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:41,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:41,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:41,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:41,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:41,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:41,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:41,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:41,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:41,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:41,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:41:41,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:41,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:41,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:41,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:41,384 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:41,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:41,385 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:41,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:41:41,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:41,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:41,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:41,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:41,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:41,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:41,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:41,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:41,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:41,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:41,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:41,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:41,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:41,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:41,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:41,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:41,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:41,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:41:41,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:41:41,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:41,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:41,397 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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2020-07-28 17:41:41,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:41,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:41,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:41,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:41,756 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:41,757 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-07-28 17:41:41,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c262c4/f136dd753e764bc3bb086cce52888bce/FLAG7df45e6b3 [2020-07-28 17:41:42,240 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:42,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-07-28 17:41:42,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c262c4/f136dd753e764bc3bb086cce52888bce/FLAG7df45e6b3 [2020-07-28 17:41:42,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c262c4/f136dd753e764bc3bb086cce52888bce [2020-07-28 17:41:42,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:42,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:42,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:42,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:42,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:42,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:42" (1/1) ... [2020-07-28 17:41:42,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4c4791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:42, skipping insertion in model container [2020-07-28 17:41:42,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:42" (1/1) ... [2020-07-28 17:41:42,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:42,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:42,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:42,875 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:43,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:43,036 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:43,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43 WrapperNode [2020-07-28 17:41:43,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:43,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:43,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:43,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:43,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:43,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:43,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:43,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:43,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (1/1) ... [2020-07-28 17:41:43,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:43,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:43,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:43,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:43,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (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 17:41:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:41:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:41:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:41:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:43,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:41:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:41:43,893 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:41:43,895 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:41:43,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:43 BoogieIcfgContainer [2020-07-28 17:41:43,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:41:43,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:41:43,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:41:43,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:41:43,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:42" (1/3) ... [2020-07-28 17:41:43,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca3e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:43, skipping insertion in model container [2020-07-28 17:41:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:43" (2/3) ... [2020-07-28 17:41:43,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca3e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:43, skipping insertion in model container [2020-07-28 17:41:43,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:43" (3/3) ... [2020-07-28 17:41:43,913 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-07-28 17:41:43,925 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:41:43,934 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:41:43,949 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:41:43,981 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:41:43,982 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:41:43,982 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:41:43,982 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:41:43,983 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:41:43,983 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:41:43,983 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:41:43,983 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:41:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-28 17:41:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:41:44,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:44,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:44,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:44,024 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-07-28 17:41:44,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:44,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055334050] [2020-07-28 17:41:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:41:44,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~ln2_hi_log~0 := 0.6931471803691238;~ln2_lo_log~0 := 1.9082149292705877E-10;~two54_log~0 := 1.8014398509481984E16;~Lg1_log~0 := 0.6666666666666735;~Lg2_log~0 := 0.3999999999940942;~Lg3_log~0 := 0.2857142874366239;~Lg4_log~0 := 0.22222198432149784;~Lg5_log~0 := 0.1818357216161805;~Lg6_log~0 := 0.15313837699209373;~Lg7_log~0 := 0.14798198605116586;~zero~0 := 0.0;~two54_log10~0 := 1.8014398509481984E16;~ivln10_log10~0 := 0.4342944819032518;~log10_2hi_log10~0 := 0.30102999566361177;~log10_2lo_log10~0 := 3.694239077158931E-13;~zero_log10~0 := 0.0; {48#true} is VALID [2020-07-28 17:41:44,195 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(1.0, 0.0);__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem8, __ieee754_log10_#t~union9, __ieee754_log10_#t~mem10, __ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15.lsw, __ieee754_log10_#t~union15.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret16, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~1, __ieee754_log10_~lx~1;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~1;havoc __ieee754_log10_~lx~1; {48#true} is VALID [2020-07-28 17:41:44,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:41:44,196 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0; {49#false} is VALID [2020-07-28 17:41:44,197 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume __ieee754_log10_~hx~1 < 1048576; {49#false} is VALID [2020-07-28 17:41:44,197 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0 == ~bitwiseOr(~bitwiseAnd(__ieee754_log10_~hx~1, 2147483647), __ieee754_log10_~lx~1) % 4294967296;__ieee754_log10_#res := ~someBinaryArithmeticDOUBLEoperation(~someUnaryDOUBLEoperation(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:41:44,198 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem17, isinf_double_#t~union18, isinf_double_#t~mem19, isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, isinf_double_~x, isinf_double_~hx~2, isinf_double_~lx~2;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~2;havoc isinf_double_~lx~2; {49#false} is VALID [2020-07-28 17:41:44,198 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:41:44,198 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~2 := ~bitwiseAnd(isinf_double_~hx~2, 2147483647);isinf_double_~hx~2 := (if ~bitwiseOr(isinf_double_~hx~2, ~bitwiseOr(isinf_double_~lx~2, -isinf_double_~lx~2) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~2, ~bitwiseOr(isinf_double_~lx~2, -isinf_double_~lx~2) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~2, ~bitwiseOr(isinf_double_~lx~2, -isinf_double_~lx~2) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~2 := 2146435072 - isinf_double_~hx~2;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~2, -isinf_double_~hx~2) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~2, -isinf_double_~hx~2) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~2, -isinf_double_~hx~2) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {49#false} is VALID [2020-07-28 17:41:44,199 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {49#false} is VALID [2020-07-28 17:41:44,199 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:41:44,200 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:41:44,202 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 17:41:44,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055334050] [2020-07-28 17:41:44,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:41:44,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:41:44,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792783251] [2020-07-28 17:41:44,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:41:44,213 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:41:44,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:41:44,279 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:44,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:41:44,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:41:44,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:41:44,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:41:44,293 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-07-28 17:41:44,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:44,402 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-07-28 17:41:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:41:44,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:41:44,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:41:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:41:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:41:44,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 146 transitions. [2020-07-28 17:41:44,640 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 146 edges. 146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:44,654 INFO L225 Difference]: With dead ends: 88 [2020-07-28 17:41:44,654 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 17:41:44,658 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 17:41:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 17:41:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 17:41:44,700 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:41:44,700 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:44,701 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:44,701 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:44,706 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:41:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:44,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:44,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:44,708 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:44,708 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:44,712 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:41:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:44,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:44,713 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:44,714 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:41:44,714 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:41:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 17:41:44,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-07-28 17:41:44,719 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-07-28 17:41:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:41:44,719 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-07-28 17:41:44,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:41:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:41:44,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:44,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:44,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:41:44,721 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:44,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-07-28 17:41:44,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:44,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991449417] [2020-07-28 17:41:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:44,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:41:44,858 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.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 17:41:44,869 INFO L168 Benchmark]: Toolchain (without parser) took 2274.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 960.2 MB in the beginning and 992.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:44,870 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:44,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:44,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.11 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 17:41:44,877 INFO L168 Benchmark]: Boogie Preprocessor took 46.58 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:44,877 INFO L168 Benchmark]: RCFGBuilder took 724.20 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: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:44,878 INFO L168 Benchmark]: TraceAbstraction took 962.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:44,885 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 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 441.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.11 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 46.58 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 724.20 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: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 962.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 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 17:41:46,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:46,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:46,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:46,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:46,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:46,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:46,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:46,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:46,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:46,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:46,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:46,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:46,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:46,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:46,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:46,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:46,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:46,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:46,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:46,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:46,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:46,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:46,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:46,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:46,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:46,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:46,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:46,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:46,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:46,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:46,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:46,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:46,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:46,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:46,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:46,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:46,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:46,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:46,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:46,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:46,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:41:46,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:46,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:46,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:46,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:46,877 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:46,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:46,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:46,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:46,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:46,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:46,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:46,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:46,879 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:41:46,879 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:41:46,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:46,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:46,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:46,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:46,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:46,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:46,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:46,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:46,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:46,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:46,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:46,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:46,883 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:41:46,883 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:41:46,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:46,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:46,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:41:46,884 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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2020-07-28 17:41:47,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:47,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:47,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:47,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:47,200 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:47,201 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-07-28 17:41:47,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29d05360/5fd3a661b7e14c59ac2fc68a95351627/FLAGca4d442ee [2020-07-28 17:41:47,748 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:47,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-07-28 17:41:47,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29d05360/5fd3a661b7e14c59ac2fc68a95351627/FLAGca4d442ee [2020-07-28 17:41:48,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29d05360/5fd3a661b7e14c59ac2fc68a95351627 [2020-07-28 17:41:48,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:48,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:48,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:48,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:48,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:48,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57953055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48, skipping insertion in model container [2020-07-28 17:41:48,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:48,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:48,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:48,450 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:48,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:48,619 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:48,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48 WrapperNode [2020-07-28 17:41:48,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:48,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:48,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:48,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:48,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:48,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:48,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:48,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:48,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (1/1) ... [2020-07-28 17:41:48,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:48,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:48,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:48,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:48,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (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 17:41:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:41:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:41:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:41:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:41:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:42:21,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:42:21,606 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:42:21,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:21 BoogieIcfgContainer [2020-07-28 17:42:21,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:42:21,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:42:21,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:42:21,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:42:21,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:48" (1/3) ... [2020-07-28 17:42:21,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291f22ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:21, skipping insertion in model container [2020-07-28 17:42:21,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:48" (2/3) ... [2020-07-28 17:42:21,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291f22ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:21, skipping insertion in model container [2020-07-28 17:42:21,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:21" (3/3) ... [2020-07-28 17:42:21,620 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-07-28 17:42:21,628 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:42:21,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:42:21,647 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:42:21,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:42:21,665 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:42:21,665 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:42:21,665 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:42:21,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:42:21,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:42:21,666 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:42:21,667 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:42:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-28 17:42:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:42:21,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:21,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:21,686 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:21,691 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-07-28 17:42:21,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:42:21,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728085810] [2020-07-28 17:42:21,701 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 17:42:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:22,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:42:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:22,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:42:22,669 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {48#true} is VALID [2020-07-28 17:42:22,669 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem8, __ieee754_log10_#t~union9, __ieee754_log10_#t~mem10, __ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15.lsw, __ieee754_log10_#t~union15.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret16, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~1, __ieee754_log10_~lx~1;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~1;havoc __ieee754_log10_~lx~1; {48#true} is VALID [2020-07-28 17:42:22,670 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:42:22,671 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0bv32; {49#false} is VALID [2020-07-28 17:42:22,671 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume ~bvslt32(__ieee754_log10_~hx~1, 1048576bv32); {49#false} is VALID [2020-07-28 17:42:22,671 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~1), __ieee754_log10_~lx~1);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:42:22,672 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem17, isinf_double_#t~union18, isinf_double_#t~mem19, isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, isinf_double_~x, isinf_double_~hx~2, isinf_double_~lx~2;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~2;havoc isinf_double_~lx~2; {49#false} is VALID [2020-07-28 17:42:22,672 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:42:22,672 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~2 := ~bvand32(2147483647bv32, isinf_double_~hx~2);isinf_double_~hx~2 := ~bvor32(isinf_double_~hx~2, ~bvlshr32(~bvor32(isinf_double_~lx~2, ~bvneg32(isinf_double_~lx~2)), 31bv32));isinf_double_~hx~2 := ~bvsub32(2146435072bv32, isinf_double_~hx~2);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~2, ~bvneg32(isinf_double_~hx~2)), 31bv32)); {49#false} is VALID [2020-07-28 17:42:22,673 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res; {49#false} is VALID [2020-07-28 17:42:22,673 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:42:22,673 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:42:22,677 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 17:42:22,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:42:22,698 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:42:22,698 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:42:22,699 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res; {49#false} is VALID [2020-07-28 17:42:22,699 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~2 := ~bvand32(2147483647bv32, isinf_double_~hx~2);isinf_double_~hx~2 := ~bvor32(isinf_double_~hx~2, ~bvlshr32(~bvor32(isinf_double_~lx~2, ~bvneg32(isinf_double_~lx~2)), 31bv32));isinf_double_~hx~2 := ~bvsub32(2146435072bv32, isinf_double_~hx~2);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~2, ~bvneg32(isinf_double_~hx~2)), 31bv32)); {49#false} is VALID [2020-07-28 17:42:22,700 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:42:22,700 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem17, isinf_double_#t~union18, isinf_double_#t~mem19, isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, isinf_double_~x, isinf_double_~hx~2, isinf_double_~lx~2;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~2;havoc isinf_double_~lx~2; {49#false} is VALID [2020-07-28 17:42:22,700 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~1), __ieee754_log10_~lx~1);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:42:22,701 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume ~bvslt32(__ieee754_log10_~hx~1, 1048576bv32); {49#false} is VALID [2020-07-28 17:42:22,701 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0bv32; {49#false} is VALID [2020-07-28 17:42:22,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:42:22,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem8, __ieee754_log10_#t~union9, __ieee754_log10_#t~mem10, __ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15.lsw, __ieee754_log10_#t~union15.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret16, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~1, __ieee754_log10_~lx~1;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~1;havoc __ieee754_log10_~lx~1; {48#true} is VALID [2020-07-28 17:42:22,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {48#true} is VALID [2020-07-28 17:42:22,704 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 17:42:22,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728085810] [2020-07-28 17:42:22,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:42:22,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:42:22,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59077917] [2020-07-28 17:42:22,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:42:22,715 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:42:22,719 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:42:23,725 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:23,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:42:23,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:42:23,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:42:23,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:42:23,736 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-07-28 17:42:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:53,400 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-07-28 17:42:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:42:53,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:42:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:42:53,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:42:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:53,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:42:53,424 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 146 transitions. [2020-07-28 17:43:13,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 146 edges. 146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:13,018 INFO L225 Difference]: With dead ends: 88 [2020-07-28 17:43:13,018 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 17:43:13,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 17:43:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 17:43:13,056 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:13,057 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:13,057 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:13,058 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:13,062 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:43:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:13,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:13,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:13,064 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:13,064 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:13,068 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:43:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:13,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:13,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:13,070 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:13,070 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 17:43:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-07-28 17:43:13,075 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-07-28 17:43:13,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:13,075 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-07-28 17:43:13,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:13,076 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:43:13,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:13,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:13,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:43:13,292 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:13,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-07-28 17:43:13,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:13,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670508517] [2020-07-28 17:43:13,296 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 17:43:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:14,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-28 17:43:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:14,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:43:14,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {364#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {364#true} is VALID [2020-07-28 17:43:14,375 INFO L280 TraceCheckUtils]: 1: Hoare triple {364#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem8, __ieee754_log10_#t~union9, __ieee754_log10_#t~mem10, __ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15.lsw, __ieee754_log10_#t~union15.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret16, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~1, __ieee754_log10_~lx~1;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~1;havoc __ieee754_log10_~lx~1; {372#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10_~x (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))))} is VALID [2020-07-28 17:43:14,383 INFO L280 TraceCheckUtils]: 2: Hoare triple {372#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10_~x (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))))} call __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(__ieee754_log10_~x, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);call __ieee754_log10_#t~mem8 := read~intINTTYPE4(__ieee754_log10_~#ew_u~1.base, ~bvadd32(4bv32, __ieee754_log10_~#ew_u~1.offset), 4bv32);__ieee754_log10_~hx~1 := __ieee754_log10_#t~mem8;call write~intFLOATTYPE8(__ieee754_log10_#t~union9, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);havoc __ieee754_log10_#t~mem8;havoc __ieee754_log10_#t~union9;call __ieee754_log10_#t~mem10 := read~intINTTYPE4(__ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 4bv32);__ieee754_log10_~lx~1 := __ieee754_log10_#t~mem10;call write~intFLOATTYPE8(__ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);havoc __ieee754_log10_#t~union11;havoc __ieee754_log10_#t~mem10;call ULTIMATE.dealloc(__ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset);havoc __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset; {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} is VALID [2020-07-28 17:43:14,385 INFO L280 TraceCheckUtils]: 3: Hoare triple {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} goto; {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} is VALID [2020-07-28 17:43:14,386 INFO L280 TraceCheckUtils]: 4: Hoare triple {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} __ieee754_log10_~k~1 := 0bv32; {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} is VALID [2020-07-28 17:43:14,390 INFO L280 TraceCheckUtils]: 5: Hoare triple {376#(exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___ieee754_log10_~hx~1)))} assume ~bvslt32(__ieee754_log10_~hx~1, 1048576bv32); {365#false} is VALID [2020-07-28 17:43:14,391 INFO L280 TraceCheckUtils]: 6: Hoare triple {365#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~1), __ieee754_log10_~lx~1);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {365#false} is VALID [2020-07-28 17:43:14,391 INFO L280 TraceCheckUtils]: 7: Hoare triple {365#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem17, isinf_double_#t~union18, isinf_double_#t~mem19, isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, isinf_double_~x, isinf_double_~hx~2, isinf_double_~lx~2;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~2;havoc isinf_double_~lx~2; {365#false} is VALID [2020-07-28 17:43:14,391 INFO L280 TraceCheckUtils]: 8: Hoare triple {365#false} call isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);call isinf_double_#t~mem17 := read~intINTTYPE4(isinf_double_~#ew_u~2.base, ~bvadd32(4bv32, isinf_double_~#ew_u~2.offset), 4bv32);isinf_double_~hx~2 := isinf_double_#t~mem17;call write~intFLOATTYPE8(isinf_double_#t~union18, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);havoc isinf_double_#t~mem17;havoc isinf_double_#t~union18;call isinf_double_#t~mem19 := read~intINTTYPE4(isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 4bv32);isinf_double_~lx~2 := isinf_double_#t~mem19;call write~intFLOATTYPE8(isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);havoc isinf_double_#t~mem19;havoc isinf_double_#t~union20;call ULTIMATE.dealloc(isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset);havoc isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset; {365#false} is VALID [2020-07-28 17:43:14,392 INFO L280 TraceCheckUtils]: 9: Hoare triple {365#false} goto; {365#false} is VALID [2020-07-28 17:43:14,392 INFO L280 TraceCheckUtils]: 10: Hoare triple {365#false} isinf_double_~hx~2 := ~bvand32(2147483647bv32, isinf_double_~hx~2);isinf_double_~hx~2 := ~bvor32(isinf_double_~hx~2, ~bvlshr32(~bvor32(isinf_double_~lx~2, ~bvneg32(isinf_double_~lx~2)), 31bv32));isinf_double_~hx~2 := ~bvsub32(2146435072bv32, isinf_double_~hx~2);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~2, ~bvneg32(isinf_double_~hx~2)), 31bv32)); {365#false} is VALID [2020-07-28 17:43:14,392 INFO L280 TraceCheckUtils]: 11: Hoare triple {365#false} main_#t~ret22 := isinf_double_#res; {365#false} is VALID [2020-07-28 17:43:14,393 INFO L280 TraceCheckUtils]: 12: Hoare triple {365#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {365#false} is VALID [2020-07-28 17:43:14,393 INFO L280 TraceCheckUtils]: 13: Hoare triple {365#false} assume !false; {365#false} is VALID [2020-07-28 17:43:14,399 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 17:43:14,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:43:14,573 INFO L280 TraceCheckUtils]: 13: Hoare triple {365#false} assume !false; {365#false} is VALID [2020-07-28 17:43:14,573 INFO L280 TraceCheckUtils]: 12: Hoare triple {365#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {365#false} is VALID [2020-07-28 17:43:14,574 INFO L280 TraceCheckUtils]: 11: Hoare triple {365#false} main_#t~ret22 := isinf_double_#res; {365#false} is VALID [2020-07-28 17:43:14,574 INFO L280 TraceCheckUtils]: 10: Hoare triple {365#false} isinf_double_~hx~2 := ~bvand32(2147483647bv32, isinf_double_~hx~2);isinf_double_~hx~2 := ~bvor32(isinf_double_~hx~2, ~bvlshr32(~bvor32(isinf_double_~lx~2, ~bvneg32(isinf_double_~lx~2)), 31bv32));isinf_double_~hx~2 := ~bvsub32(2146435072bv32, isinf_double_~hx~2);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~2, ~bvneg32(isinf_double_~hx~2)), 31bv32)); {365#false} is VALID [2020-07-28 17:43:14,575 INFO L280 TraceCheckUtils]: 9: Hoare triple {365#false} goto; {365#false} is VALID [2020-07-28 17:43:14,575 INFO L280 TraceCheckUtils]: 8: Hoare triple {365#false} call isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);call isinf_double_#t~mem17 := read~intINTTYPE4(isinf_double_~#ew_u~2.base, ~bvadd32(4bv32, isinf_double_~#ew_u~2.offset), 4bv32);isinf_double_~hx~2 := isinf_double_#t~mem17;call write~intFLOATTYPE8(isinf_double_#t~union18, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);havoc isinf_double_#t~mem17;havoc isinf_double_#t~union18;call isinf_double_#t~mem19 := read~intINTTYPE4(isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 4bv32);isinf_double_~lx~2 := isinf_double_#t~mem19;call write~intFLOATTYPE8(isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, 8bv32);havoc isinf_double_#t~mem19;havoc isinf_double_#t~union20;call ULTIMATE.dealloc(isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset);havoc isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset; {365#false} is VALID [2020-07-28 17:43:14,575 INFO L280 TraceCheckUtils]: 7: Hoare triple {365#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem17, isinf_double_#t~union18, isinf_double_#t~mem19, isinf_double_#t~union20, isinf_double_~#ew_u~2.base, isinf_double_~#ew_u~2.offset, isinf_double_~x, isinf_double_~hx~2, isinf_double_~lx~2;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~2;havoc isinf_double_~lx~2; {365#false} is VALID [2020-07-28 17:43:14,575 INFO L280 TraceCheckUtils]: 6: Hoare triple {365#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~1), __ieee754_log10_~lx~1);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {365#false} is VALID [2020-07-28 17:43:14,576 INFO L280 TraceCheckUtils]: 5: Hoare triple {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} assume ~bvslt32(__ieee754_log10_~hx~1, 1048576bv32); {365#false} is VALID [2020-07-28 17:43:14,577 INFO L280 TraceCheckUtils]: 4: Hoare triple {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} __ieee754_log10_~k~1 := 0bv32; {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} is VALID [2020-07-28 17:43:14,578 INFO L280 TraceCheckUtils]: 3: Hoare triple {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} goto; {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} is VALID [2020-07-28 17:43:14,584 INFO L280 TraceCheckUtils]: 2: Hoare triple {444#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 64))) (or (not (= ULTIMATE.start___ieee754_log10_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)))) (not (bvslt ((_ extract 63 32) v_skolemized_v_prenex_2_3) (_ bv1048576 32)))))} call __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(__ieee754_log10_~x, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);call __ieee754_log10_#t~mem8 := read~intINTTYPE4(__ieee754_log10_~#ew_u~1.base, ~bvadd32(4bv32, __ieee754_log10_~#ew_u~1.offset), 4bv32);__ieee754_log10_~hx~1 := __ieee754_log10_#t~mem8;call write~intFLOATTYPE8(__ieee754_log10_#t~union9, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);havoc __ieee754_log10_#t~mem8;havoc __ieee754_log10_#t~union9;call __ieee754_log10_#t~mem10 := read~intINTTYPE4(__ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 4bv32);__ieee754_log10_~lx~1 := __ieee754_log10_#t~mem10;call write~intFLOATTYPE8(__ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, 8bv32);havoc __ieee754_log10_#t~union11;havoc __ieee754_log10_#t~mem10;call ULTIMATE.dealloc(__ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset);havoc __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset; {434#(not (bvslt ULTIMATE.start___ieee754_log10_~hx~1 (_ bv1048576 32)))} is VALID [2020-07-28 17:43:14,589 INFO L280 TraceCheckUtils]: 1: Hoare triple {364#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem8, __ieee754_log10_#t~union9, __ieee754_log10_#t~mem10, __ieee754_log10_#t~union11, __ieee754_log10_~#ew_u~1.base, __ieee754_log10_~#ew_u~1.offset, __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15.lsw, __ieee754_log10_#t~union15.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret16, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~1, __ieee754_log10_~lx~1;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~1;havoc __ieee754_log10_~lx~1; {444#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 64))) (or (not (= ULTIMATE.start___ieee754_log10_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)))) (not (bvslt ((_ extract 63 32) v_skolemized_v_prenex_2_3) (_ bv1048576 32)))))} is VALID [2020-07-28 17:43:14,589 INFO L280 TraceCheckUtils]: 0: Hoare triple {364#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {364#true} is VALID [2020-07-28 17:43:14,591 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 17:43:14,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670508517] [2020-07-28 17:43:14,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:14,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 17:43:14,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148899006] [2020-07-28 17:43:14,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 17:43:14,594 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:14,594 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 17:43:15,661 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:15,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 17:43:15,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:43:15,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 17:43:15,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:43:15,663 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2020-07-28 17:43:16,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:16,112 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2020-07-28 17:43:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 17:43:16,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 17:43:16,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:43:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2020-07-28 17:43:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:43:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2020-07-28 17:43:16,117 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 65 transitions. [2020-07-28 17:43:26,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:26,058 INFO L225 Difference]: With dead ends: 51 [2020-07-28 17:43:26,058 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 17:43:26,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 17:43:26,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 17:43:26,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 17:43:26,072 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:26,072 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 17:43:26,072 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:43:26,073 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:43:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:26,074 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:43:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:43:26,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:26,075 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:26,075 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:43:26,075 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:43:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:26,076 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:43:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:43:26,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:26,077 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:26,077 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:26,077 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:26,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:43:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-28 17:43:26,078 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-07-28 17:43:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:26,079 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-28 17:43:26,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 17:43:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:43:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:43:26,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:26,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:26,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:43:26,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:26,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:26,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2020-07-28 17:43:26,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:26,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602448370] [2020-07-28 17:43:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-07-28 17:43:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:26,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:26,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:26,752 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:43:26,753 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:43:26,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:43:27,020 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L121-2 has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L121-2 has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L121-1 has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L121-1 has no Hoare annotation [2020-07-28 17:43:27,021 WARN L170 areAnnotationChecker]: L121-3 has no Hoare annotation [2020-07-28 17:43:27,022 WARN L170 areAnnotationChecker]: L129 has no Hoare annotation [2020-07-28 17:43:27,022 WARN L170 areAnnotationChecker]: L129 has no Hoare annotation [2020-07-28 17:43:27,022 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 17:43:27,022 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 17:43:27,022 WARN L170 areAnnotationChecker]: L129-1 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L129-1 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L155 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L132 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L132 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2020-07-28 17:43:27,023 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2020-07-28 17:43:27,024 WARN L170 areAnnotationChecker]: L161-2 has no Hoare annotation [2020-07-28 17:43:27,024 WARN L170 areAnnotationChecker]: L161-2 has no Hoare annotation [2020-07-28 17:43:27,024 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2020-07-28 17:43:27,024 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2020-07-28 17:43:27,025 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2020-07-28 17:43:27,025 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2020-07-28 17:43:27,025 WARN L170 areAnnotationChecker]: L148-3 has no Hoare annotation [2020-07-28 17:43:27,025 WARN L170 areAnnotationChecker]: L161-1 has no Hoare annotation [2020-07-28 17:43:27,025 WARN L170 areAnnotationChecker]: L161-1 has no Hoare annotation [2020-07-28 17:43:27,026 WARN L170 areAnnotationChecker]: L161-3 has no Hoare annotation [2020-07-28 17:43:27,026 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2020-07-28 17:43:27,026 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2020-07-28 17:43:27,026 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-28 17:43:27,026 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L170 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:27,027 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:27,028 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:43:27,028 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:43:27,028 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2020-07-28 17:43:27,028 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2020-07-28 17:43:27,028 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:43:27,029 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:43:27,030 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 17:43:27,030 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 17:43:27,030 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-28 17:43:27,030 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-28 17:43:27,030 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:43:27,031 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:43:27,031 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-28 17:43:27,031 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-28 17:43:27,031 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-28 17:43:27,031 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:43:27,032 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 17:43:27,033 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 17:43:27,033 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:43:27,033 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:43:27,033 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:43:27,033 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:43:27,034 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-28 17:43:27,034 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-28 17:43:27,034 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-28 17:43:27,034 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-28 17:43:27,034 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 17:43:27,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:43:27 BoogieIcfgContainer [2020-07-28 17:43:27,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:43:27,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:43:27,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:43:27,038 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:43:27,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:21" (3/4) ... [2020-07-28 17:43:27,041 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:43:27,128 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:43:27,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:43:27,133 INFO L168 Benchmark]: Toolchain (without parser) took 99042.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.2 MB in the beginning and 847.9 MB in the end (delta: 112.3 MB). Peak memory consumption was 249.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,133 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:27,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.20 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 17:43:27,136 INFO L168 Benchmark]: Boogie Preprocessor took 55.45 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,137 INFO L168 Benchmark]: RCFGBuilder took 32854.78 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,137 INFO L168 Benchmark]: TraceAbstraction took 65424.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 854.5 MB in the end (delta: 204.0 MB). Peak memory consumption was 204.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,138 INFO L168 Benchmark]: Witness Printer took 90.85 ms. Allocated memory is still 1.2 GB. Free memory was 854.5 MB in the beginning and 847.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:27,142 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 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 528.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.20 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 55.45 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 32854.78 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65424.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 854.5 MB in the end (delta: 204.0 MB). Peak memory consumption was 204.0 MB. Max. memory is 11.5 GB. * Witness Printer took 90.85 ms. Allocated memory is still 1.2 GB. Free memory was 854.5 MB in the beginning and 847.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 186]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15-L24] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L26] static const double zero = 0.0; [L109-L112] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L114] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L181] double x = 1.0 / 0.0; [L117] double y, z; [L118] __int32_t i, k, hx; [L119] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L122] ieee_double_shape_type ew_u; [L123] ew_u.value = (x) [L124] EXPR ew_u.parts.msw [L124] (hx) = ew_u.parts.msw [L125] EXPR ew_u.parts.lsw [L125] (lx) = ew_u.parts.lsw [L128] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L129] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L142] COND TRUE hx >= 0x7ff00000 [L143] return x + x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] double res = __ieee754_log10(x); [L160] __int32_t hx, lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L162] ieee_double_shape_type ew_u; [L163] ew_u.value = (x) [L164] EXPR ew_u.parts.msw [L164] (hx) = ew_u.parts.msw [L165] EXPR ew_u.parts.lsw [L165] (lx) = ew_u.parts.lsw [L167] hx &= 0x7fffffff [L168] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L169] hx = 0x7ff00000 - hx [L170] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L185] COND TRUE !isinf_double(res) [L186] __VERIFIER_error() VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 59.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 30 SDslu, 3 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...