./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_0620b.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a3f551236e6278c9c002017bfa081dd6b42c960 ............................................................................................................................................................................................................................................................................................................................ 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_0620b.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a3f551236e6278c9c002017bfa081dd6b42c960 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:47:50,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:47:50,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:47:50,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:47:50,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:47:50,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:47:50,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:47:50,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:47:50,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:47:50,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:47:50,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:47:50,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:47:50,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:47:50,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:47:50,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:47:50,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:47:50,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:47:50,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:47:50,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:47:50,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:47:50,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:47:50,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:47:50,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:47:50,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:47:50,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:47:50,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:47:50,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:47:50,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:47:50,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:47:50,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:47:50,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:47:50,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:47:50,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:47:50,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:47:50,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:47:50,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:47:50,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:47:50,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:47:50,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:47:50,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:47:50,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:47:50,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:47:50,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:47:50,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:47:50,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:47:50,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:47:50,280 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:47:50,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:47:50,281 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:47:50,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:47:50,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:47:50,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:47:50,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:47:50,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:47:50,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:47:50,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:47:50,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:47:50,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:47:50,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:47:50,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:47:50,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:47:50,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:47:50,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:47:50,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:47:50,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:47:50,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:47:50,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:47:50,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:47:50,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:47:50,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:47:50,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:47:50,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2020-10-25 21:47:50,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:47:50,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:47:50,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:47:50,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:47:50,733 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:47:50,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-10-25 21:47:50,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc278208/3f2feada162e40aa9ed1a49dc61f70f9/FLAG8d88fd886 [2020-10-25 21:47:51,439 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:47:51,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-10-25 21:47:51,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc278208/3f2feada162e40aa9ed1a49dc61f70f9/FLAG8d88fd886 [2020-10-25 21:47:51,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc278208/3f2feada162e40aa9ed1a49dc61f70f9 [2020-10-25 21:47:51,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:47:51,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:47:51,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:47:51,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:47:51,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:47:51,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:47:51" (1/1) ... [2020-10-25 21:47:51,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a1ab1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:51, skipping insertion in model container [2020-10-25 21:47:51,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:47:51" (1/1) ... [2020-10-25 21:47:51,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:47:51,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:47:52,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:47:52,108 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:47:52,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:47:52,197 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:47:52,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52 WrapperNode [2020-10-25 21:47:52,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:47:52,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:47:52,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:47:52,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:47:52,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:47:52,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:47:52,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:47:52,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:47:52,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (1/1) ... [2020-10-25 21:47:52,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:47:52,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:47:52,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:47:52,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:47:52,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (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 [2020-10-25 21:47:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:47:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:47:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:47:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:47:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:47:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:47:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:47:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:47:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-25 21:47:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:47:53,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:47:53,182 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-25 21:47:53,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:47:53 BoogieIcfgContainer [2020-10-25 21:47:53,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:47:53,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:47:53,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:47:53,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:47:53,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:47:51" (1/3) ... [2020-10-25 21:47:53,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32694bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:47:53, skipping insertion in model container [2020-10-25 21:47:53,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:52" (2/3) ... [2020-10-25 21:47:53,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32694bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:47:53, skipping insertion in model container [2020-10-25 21:47:53,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:47:53" (3/3) ... [2020-10-25 21:47:53,194 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2020-10-25 21:47:53,206 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:47:53,216 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:47:53,229 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:47:53,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:47:53,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:47:53,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:47:53,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:47:53,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:47:53,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:47:53,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:47:53,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:47:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-25 21:47:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:47:53,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:47:53,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:47:53,279 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:47:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:47:53,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-10-25 21:47:53,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:47:53,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976084296] [2020-10-25 21:47:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:47:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:47:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:47:53,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976084296] [2020-10-25 21:47:53,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:47:53,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:47:53,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652148822] [2020-10-25 21:47:53,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:47:53,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:47:53,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:47:53,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:47:53,537 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-10-25 21:47:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:47:53,574 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-10-25 21:47:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:47:53,576 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:47:53,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:47:53,607 INFO L225 Difference]: With dead ends: 77 [2020-10-25 21:47:53,607 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 21:47:53,613 INFO L677 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 [2020-10-25 21:47:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 21:47:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 21:47:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 21:47:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-10-25 21:47:53,662 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-10-25 21:47:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:47:53,663 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-10-25 21:47:53,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:47:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-10-25 21:47:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:47:53,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:47:53,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:47:53,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:47:53,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:47:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:47:53,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-10-25 21:47:53,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:47:53,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665058900] [2020-10-25 21:47:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:47:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:47:53,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:47:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:47:53,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:47:53,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:47:53,888 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:47:53,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:47:53,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:47:53 BoogieIcfgContainer [2020-10-25 21:47:53,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:47:53,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:47:53,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:47:53,972 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:47:53,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:47:53" (3/4) ... [2020-10-25 21:47:53,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:47:53,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:47:53,981 INFO L168 Benchmark]: Toolchain (without parser) took 2194.41 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.0 MB in the beginning and 28.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:47:53,982 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:47:53,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.64 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 19.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:47:53,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.71 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 39.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-10-25 21:47:53,988 INFO L168 Benchmark]: Boogie Preprocessor took 104.34 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 37.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:47:53,989 INFO L168 Benchmark]: RCFGBuilder took 806.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.0 MB in the beginning and 28.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:47:53,990 INFO L168 Benchmark]: TraceAbstraction took 784.92 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 28.5 MB in the end (delta: -672.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:47:53,991 INFO L168 Benchmark]: Witness Printer took 5.17 ms. Allocated memory is still 56.6 MB. Free memory was 28.5 MB in the beginning and 28.2 MB in the end (delta: 340.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:47:54,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.64 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 19.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.71 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 39.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.34 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 37.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 806.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.0 MB in the beginning and 28.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 784.92 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 28.5 MB in the end (delta: -672.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.17 ms. Allocated memory is still 56.6 MB. Free memory was 28.5 MB in the beginning and 28.2 MB in the end (delta: 340.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L156] double x = 0.0; [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L157] double res = atan_double(x); [L160] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L160] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0620b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:47:56,546 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-25 21:47:56,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:47:56,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:47:56,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:47:56,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:47:56,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:47:56,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:47:56,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:47:56,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:47:56,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:47:56,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:47:56,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:47:56,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:47:56,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:47:56,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:47:56,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:47:56,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:47:56,716 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:47:56,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:47:56,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:47:56,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:47:56,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:47:56,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:47:56,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:47:56,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:47:56,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:47:56,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:47:56,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:47:56,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:47:56,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:47:56,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:47:56,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:47:56,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:47:56,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:47:56,723 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2020-10-25 21:47:57,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:47:57,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:47:57,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:47:57,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:47:57,196 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:47:57,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-10-25 21:47:57,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ed61b51/d1d774ac34344e6bae1983054b7966ef/FLAGed48c2309 [2020-10-25 21:47:57,940 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:47:57,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-10-25 21:47:57,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ed61b51/d1d774ac34344e6bae1983054b7966ef/FLAGed48c2309 [2020-10-25 21:47:58,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ed61b51/d1d774ac34344e6bae1983054b7966ef [2020-10-25 21:47:58,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:47:58,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:47:58,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:47:58,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:47:58,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:47:58,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7825d5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58, skipping insertion in model container [2020-10-25 21:47:58,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:47:58,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:47:58,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:47:58,668 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:47:58,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:47:58,802 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:47:58,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58 WrapperNode [2020-10-25 21:47:58,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:47:58,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:47:58,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:47:58,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:47:58,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:47:58,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:47:58,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:47:58,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:47:58,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (1/1) ... [2020-10-25 21:47:58,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:47:58,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:47:58,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:47:58,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:47:58,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (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 [2020-10-25 21:47:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-25 21:47:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-25 21:47:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:47:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:47:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-25 21:47:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:47:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:47:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:47:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:47:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:48:21,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:48:21,047 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-25 21:48:21,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:21 BoogieIcfgContainer [2020-10-25 21:48:21,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:48:21,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:48:21,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:48:21,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:48:21,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:47:58" (1/3) ... [2020-10-25 21:48:21,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4129d284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:48:21, skipping insertion in model container [2020-10-25 21:48:21,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:47:58" (2/3) ... [2020-10-25 21:48:21,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4129d284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:48:21, skipping insertion in model container [2020-10-25 21:48:21,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:21" (3/3) ... [2020-10-25 21:48:21,083 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2020-10-25 21:48:21,115 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:48:21,132 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:48:21,166 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:48:21,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:48:21,228 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:48:21,228 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:48:21,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:48:21,229 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:48:21,229 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:48:21,229 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:48:21,230 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:48:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-25 21:48:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:48:21,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:48:21,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:48:21,286 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:48:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:48:21,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-10-25 21:48:21,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:48:21,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289191400] [2020-10-25 21:48:21,338 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 [2020-10-25 21:48:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:48:22,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:48:22,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:48:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:22,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:48:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:22,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289191400] [2020-10-25 21:48:22,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:48:22,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:48:22,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920755670] [2020-10-25 21:48:22,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:48:22,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:48:22,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:48:22,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:48:22,529 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-10-25 21:48:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:48:22,594 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-10-25 21:48:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:48:22,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:48:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:48:22,635 INFO L225 Difference]: With dead ends: 77 [2020-10-25 21:48:22,637 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 21:48:22,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:48:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 21:48:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 21:48:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 21:48:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-10-25 21:48:22,745 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-10-25 21:48:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:48:22,747 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-10-25 21:48:22,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:48:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-10-25 21:48:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:48:22,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:48:22,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:48:22,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:48:22,968 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:48:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:48:22,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-10-25 21:48:22,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:48:22,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773575465] [2020-10-25 21:48:22,974 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 [2020-10-25 21:48:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:48:23,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 21:48:23,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:48:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:24,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:48:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:24,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773575465] [2020-10-25 21:48:24,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:48:24,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:48:24,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078503565] [2020-10-25 21:48:24,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:48:24,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:48:24,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:48:24,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:48:24,474 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2020-10-25 21:48:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:48:37,637 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2020-10-25 21:48:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:48:37,640 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-25 21:48:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:48:37,642 INFO L225 Difference]: With dead ends: 59 [2020-10-25 21:48:37,643 INFO L226 Difference]: Without dead ends: 32 [2020-10-25 21:48:37,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:48:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-25 21:48:37,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-10-25 21:48:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-25 21:48:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-25 21:48:37,660 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2020-10-25 21:48:37,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:48:37,662 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-25 21:48:37,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:48:37,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-10-25 21:48:37,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:48:37,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:48:37,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:48:37,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:48:37,881 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:48:37,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:48:37,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2020-10-25 21:48:37,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:48:37,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983569066] [2020-10-25 21:48:37,889 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 [2020-10-25 21:48:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:48:38,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:48:38,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:48:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:39,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:48:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:39,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983569066] [2020-10-25 21:48:39,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:48:39,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-25 21:48:39,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805048100] [2020-10-25 21:48:39,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 21:48:39,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:48:39,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 21:48:39,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-25 21:48:39,241 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-10-25 21:49:00,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:49:00,442 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-10-25 21:49:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 21:49:00,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-25 21:49:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:49:00,452 INFO L225 Difference]: With dead ends: 35 [2020-10-25 21:49:00,455 INFO L226 Difference]: Without dead ends: 32 [2020-10-25 21:49:00,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 21:49:00,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-25 21:49:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-10-25 21:49:00,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-25 21:49:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-10-25 21:49:00,500 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-10-25 21:49:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:49:00,502 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-25 21:49:00,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 21:49:00,503 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-10-25 21:49:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 21:49:00,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:00,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:00,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:49:00,728 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:00,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:00,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2020-10-25 21:49:00,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:49:00,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672371571] [2020-10-25 21:49:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-25 21:49:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:49:08,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:49:08,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:49:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:08,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:49:10,534 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-25 21:49:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:11,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672371571] [2020-10-25 21:49:11,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:49:11,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-25 21:49:11,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457757212] [2020-10-25 21:49:11,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:49:11,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:49:11,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:49:11,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:49:11,199 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-10-25 21:49:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:49:11,693 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-25 21:49:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:49:11,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-25 21:49:11,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:49:11,719 INFO L225 Difference]: With dead ends: 32 [2020-10-25 21:49:11,719 INFO L226 Difference]: Without dead ends: 18 [2020-10-25 21:49:11,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:49:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-25 21:49:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-25 21:49:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-25 21:49:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-25 21:49:11,724 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-10-25 21:49:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:49:11,724 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-25 21:49:11,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:49:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-25 21:49:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 21:49:11,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:11,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:11,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 21:49:11,941 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:11,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2020-10-25 21:49:11,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:49:11,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832136123] [2020-10-25 21:49:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-25 21:49:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:49:12,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-25 21:49:12,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:49:12,829 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 21:49:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:12,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:49:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:13,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832136123] [2020-10-25 21:49:13,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:49:13,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-10-25 21:49:13,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869846774] [2020-10-25 21:49:13,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-25 21:49:13,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:49:13,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-25 21:49:13,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-25 21:49:13,440 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-10-25 21:49:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:49:14,218 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-25 21:49:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-25 21:49:14,221 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-25 21:49:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:49:14,222 INFO L225 Difference]: With dead ends: 18 [2020-10-25 21:49:14,222 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:49:14,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-25 21:49:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:49:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:49:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:49:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:49:14,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-25 21:49:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:49:14,229 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:49:14,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-25 21:49:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:49:14,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:49:14,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-25 21:49:14,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:49:14,706 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-25 21:49:14,815 INFO L274 CegarLoopResult]: For program point L85(lines 85 88) no Hoare annotation was computed. [2020-10-25 21:49:14,815 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:49:14,816 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:49:14,816 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-25 21:49:14,816 INFO L274 CegarLoopResult]: For program point L160-2(lines 160 163) no Hoare annotation was computed. [2020-10-25 21:49:14,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:49:14,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:49:14,817 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-10-25 21:49:14,817 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-10-25 21:49:14,818 INFO L274 CegarLoopResult]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2020-10-25 21:49:14,818 INFO L274 CegarLoopResult]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2020-10-25 21:49:14,818 INFO L270 CegarLoopResult]: At program point L70-2(lines 70 74) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x)) [2020-10-25 21:49:14,819 INFO L274 CegarLoopResult]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2020-10-25 21:49:14,819 INFO L274 CegarLoopResult]: For program point L128(lines 128 133) no Hoare annotation was computed. [2020-10-25 21:49:14,819 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-10-25 21:49:14,819 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-10-25 21:49:14,820 INFO L270 CegarLoopResult]: At program point L145(lines 136 146) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|)) (_ +zero 11 53)))) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-10-25 21:49:14,820 INFO L274 CegarLoopResult]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2020-10-25 21:49:14,820 INFO L270 CegarLoopResult]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-10-25 21:49:14,821 INFO L274 CegarLoopResult]: For program point L139-3(lines 139 143) no Hoare annotation was computed. [2020-10-25 21:49:14,821 INFO L274 CegarLoopResult]: For program point L98(lines 98 114) no Hoare annotation was computed. [2020-10-25 21:49:14,821 INFO L270 CegarLoopResult]: At program point L32(lines 19 33) the Hoare annotation is: false [2020-10-25 21:49:14,821 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:49:14,821 INFO L274 CegarLoopResult]: For program point L90(lines 90 115) no Hoare annotation was computed. [2020-10-25 21:49:14,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:49:14,822 INFO L274 CegarLoopResult]: For program point L107(lines 107 113) no Hoare annotation was computed. [2020-10-25 21:49:14,822 INFO L274 CegarLoopResult]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2020-10-25 21:49:14,822 INFO L277 CegarLoopResult]: At program point L165(lines 148 166) the Hoare annotation is: true [2020-10-25 21:49:14,823 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 21:49:14,823 INFO L274 CegarLoopResult]: For program point L99(lines 99 105) no Hoare annotation was computed. [2020-10-25 21:49:14,823 INFO L274 CegarLoopResult]: For program point L132-2(line 132) no Hoare annotation was computed. [2020-10-25 21:49:14,823 INFO L270 CegarLoopResult]: At program point L132-3(lines 66 134) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53))) [2020-10-25 21:49:14,824 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:49:14,824 INFO L274 CegarLoopResult]: For program point L91(lines 91 94) no Hoare annotation was computed. [2020-10-25 21:49:14,824 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2020-10-25 21:49:14,825 INFO L274 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-10-25 21:49:14,825 INFO L274 CegarLoopResult]: For program point L26(lines 26 31) no Hoare annotation was computed. [2020-10-25 21:49:14,825 INFO L274 CegarLoopResult]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2020-10-25 21:49:14,825 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2020-10-25 21:49:14,825 INFO L274 CegarLoopResult]: For program point L76(lines 76 89) no Hoare annotation was computed. [2020-10-25 21:49:14,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,863 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,863 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,863 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,863 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:14,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:14,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:14,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:49:14 BoogieIcfgContainer [2020-10-25 21:49:14,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:49:14,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:49:14,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:49:14,879 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:49:14,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:21" (3/4) ... [2020-10-25 21:49:14,887 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:49:14,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-10-25 21:49:14,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 21:49:14,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:49:14,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:49:14,952 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE() [2020-10-25 21:49:14,954 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2020-10-25 21:49:14,955 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: msw == v_skolemized_q#valueAsBitvector_14[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2020-10-25 21:49:15,007 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:49:15,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:49:15,010 INFO L168 Benchmark]: Toolchain (without parser) took 76714.68 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.3 MB in the beginning and 27.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,011 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 23.4 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:49:15,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.45 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 32.2 MB in the end (delta: 464.5 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.88 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 29.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,013 INFO L168 Benchmark]: Boogie Preprocessor took 98.17 ms. Allocated memory is still 56.6 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,013 INFO L168 Benchmark]: RCFGBuilder took 22080.10 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.4 MB in the beginning and 47.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,014 INFO L168 Benchmark]: TraceAbstraction took 53818.96 ms. Allocated memory is still 69.2 MB. Free memory was 46.9 MB in the beginning and 33.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,014 INFO L168 Benchmark]: Witness Printer took 129.73 ms. Allocated memory is still 69.2 MB. Free memory was 33.5 MB in the beginning and 27.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:15,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 23.4 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 500.45 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 32.2 MB in the end (delta: 464.5 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.88 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 29.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.17 ms. Allocated memory is still 56.6 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22080.10 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.4 MB in the beginning and 47.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 53818.96 ms. Allocated memory is still 69.2 MB. Free memory was 46.9 MB in the beginning and 33.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. * Witness Printer took 129.73 ms. Allocated memory is still 69.2 MB. Free memory was 33.5 MB in the beginning and 27.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant [2020-10-25 21:49:15,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 136]: Loop Invariant [2020-10-25 21:49:15,053 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-10-25 21:49:15,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: msw == v_skolemized_q#valueAsBitvector_14[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2020-10-25 21:49:15,072 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 70]: Loop Invariant [2020-10-25 21:49:15,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:49:15,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:49:15,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 53.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 180 SDslu, 180 SDs, 0 SdLazy, 70 SolverSat, 14 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 29.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 113 HoareAnnotationTreeSize, 8 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 9.9s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 9201 SizeOfPredicates, 28 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...