./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/float_req_bl_1052c.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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/float_req_bl_1052c.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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:16,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:47:16,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:47:16,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:47:16,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:47:16,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:47:16,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:47:16,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:47:16,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:47:16,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:47:16,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:47:16,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:47:16,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:47:16,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:47:16,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:47:16,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:47:16,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:47:16,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:47:16,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:47:16,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:47:16,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:47:16,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:47:16,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:47:16,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:47:16,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:47:16,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:47:16,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:47:16,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:47:16,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:47:16,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:47:16,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:16,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:16,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:16,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:16,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:16,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:16,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:16,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:16,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:16,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:16,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:16,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 08:47:16,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:16,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:16,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:16,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:16,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:16,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:16,213 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:16,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:16,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:16,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:16,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:16,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:16,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:16,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:16,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:16,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:16,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:16,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:16,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:16,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2021-08-29 08:47:16,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:16,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:16,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:16,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:16,623 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:16,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2021-08-29 08:47:16,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0908e4048/218e9deb1d3d469f92a5b4ba8da4b728/FLAGdc4006321 [2021-08-29 08:47:16,993 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:16,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2021-08-29 08:47:16,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0908e4048/218e9deb1d3d469f92a5b4ba8da4b728/FLAGdc4006321 [2021-08-29 08:47:17,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0908e4048/218e9deb1d3d469f92a5b4ba8da4b728 [2021-08-29 08:47:17,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:17,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:17,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:17,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:17,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:17,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6816bae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17, skipping insertion in model container [2021-08-29 08:47:17,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:17,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:17,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2021-08-29 08:47:17,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:17,543 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:17,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2021-08-29 08:47:17,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:17,603 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:17,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17 WrapperNode [2021-08-29 08:47:17,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:17,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:17,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:17,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:17,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:17,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:17,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:17,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:17,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:17,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:17,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:17,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:17,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (1/1) ... [2021-08-29 08:47:17,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:17,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:17,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:17,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:47:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 08:47:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 08:47:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 08:47:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 08:47:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 08:47:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:18,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:18,016 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:18,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:18 BoogieIcfgContainer [2021-08-29 08:47:18,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:18,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:18,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:18,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:18,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:17" (1/3) ... [2021-08-29 08:47:18,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6addc28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:18, skipping insertion in model container [2021-08-29 08:47:18,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:17" (2/3) ... [2021-08-29 08:47:18,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6addc28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:18, skipping insertion in model container [2021-08-29 08:47:18,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:18" (3/3) ... [2021-08-29 08:47:18,029 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2021-08-29 08:47:18,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:18,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:18,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:18,067 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:18,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:47:18,078 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:18,079 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:18,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:18,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2021-08-29 08:47:18,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:18,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77502208] [2021-08-29 08:47:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:18,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:18,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 08:47:18,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77502208] [2021-08-29 08:47:18,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77502208] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:18,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:18,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 08:47:18,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342263479] [2021-08-29 08:47:18,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:18,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 08:47:18,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:18,301 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:18,365 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2021-08-29 08:47:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:18,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 08:47:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:18,372 INFO L225 Difference]: With dead ends: 58 [2021-08-29 08:47:18,372 INFO L226 Difference]: Without dead ends: 27 [2021-08-29 08:47:18,374 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:18,377 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.38ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:18,377 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.32ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 50.38ms Time] [2021-08-29 08:47:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-29 08:47:18,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-29 08:47:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-08-29 08:47:18,408 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2021-08-29 08:47:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:18,408 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-08-29 08:47:18,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-08-29 08:47:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:47:18,409 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:18,409 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:18,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 08:47:18,410 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:18,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:18,410 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2021-08-29 08:47:18,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:18,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850664288] [2021-08-29 08:47:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:18,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:18,450 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 08:47:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:18,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 08:47:18,488 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 08:47:18,489 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:18,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 08:47:18,495 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:18,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:18 BoogieIcfgContainer [2021-08-29 08:47:18,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:18,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:18,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:18,513 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:18,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:18" (3/4) ... [2021-08-29 08:47:18,516 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 08:47:18,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:18,517 INFO L158 Benchmark]: Toolchain (without parser) took 1099.50ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.9MB in the beginning and 39.3MB in the end (delta: -5.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-08-29 08:47:18,517 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:18,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.34ms. Allocated memory is still 54.5MB. Free memory was 33.6MB in the beginning and 37.8MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 08:47:18,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.15ms. Allocated memory is still 54.5MB. Free memory was 37.8MB in the beginning and 36.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:18,518 INFO L158 Benchmark]: Boogie Preprocessor took 32.16ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 34.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:18,518 INFO L158 Benchmark]: RCFGBuilder took 358.41ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 49.5MB in the end (delta: -14.8MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:18,519 INFO L158 Benchmark]: TraceAbstraction took 489.63ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 39.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-08-29 08:47:18,519 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 67.1MB. Free memory was 39.6MB in the beginning and 39.3MB in the end (delta: 328.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:18,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.34ms. Allocated memory is still 54.5MB. Free memory was 33.6MB in the beginning and 37.8MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.15ms. Allocated memory is still 54.5MB. Free memory was 37.8MB in the beginning and 36.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.16ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 34.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.41ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 49.5MB in the end (delta: -14.8MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 489.63ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 39.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 67.1MB. Free memory was 39.6MB in the beginning and 39.3MB in the end (delta: 328.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 432.00ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.74ms, AutomataDifference: 98.41ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.68ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 50.38ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 37.70ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 39 mSolverCounterSat, 0.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.14ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.76ms SsaConstructionTime, 78.42ms SatisfiabilityAnalysisTime, 55.23ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-08-29 08:47:18,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:20,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:47:20,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:47:20,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:47:20,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:47:20,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:47:20,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:47:20,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:47:20,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:47:20,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:47:20,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:47:20,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:47:20,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:47:20,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:47:20,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:47:20,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:47:20,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:47:20,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:47:20,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:47:20,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:47:20,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:47:20,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:47:20,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:47:20,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:47:20,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:47:20,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:47:20,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:47:20,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:47:20,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:47:20,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:47:20,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:20,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:20,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:20,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:20,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:20,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:20,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:20,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:20,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:20,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:20,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:20,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 08:47:20,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:20,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:20,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:20,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:20,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:20,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:20,446 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:20,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:20,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:20,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:20,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:20,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:20,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:20,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:20,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:20,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:20,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:20,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 08:47:20,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 08:47:20,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:20,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:20,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 08:47:20,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2021-08-29 08:47:20,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:20,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:20,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:20,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:20,784 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:20,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2021-08-29 08:47:20,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b394468/04398f954add473dbb912df8daa13ca7/FLAG49377b2e1 [2021-08-29 08:47:21,196 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:21,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2021-08-29 08:47:21,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b394468/04398f954add473dbb912df8daa13ca7/FLAG49377b2e1 [2021-08-29 08:47:21,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b394468/04398f954add473dbb912df8daa13ca7 [2021-08-29 08:47:21,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:21,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:21,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:21,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:21,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:21,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469b3b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21, skipping insertion in model container [2021-08-29 08:47:21,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:21,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:21,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2021-08-29 08:47:21,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:21,441 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:21,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2021-08-29 08:47:21,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:21,494 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:21,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21 WrapperNode [2021-08-29 08:47:21,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:21,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:21,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:21,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:21,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:21,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:21,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:21,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:21,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:21,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:21,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:21,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:21,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (1/1) ... [2021-08-29 08:47:21,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:21,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:21,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:21,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:47:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 08:47:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 08:47:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 08:47:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 08:47:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 08:47:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:21,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:21,954 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:21,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:21 BoogieIcfgContainer [2021-08-29 08:47:21,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:21,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:21,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:21,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:21,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:21" (1/3) ... [2021-08-29 08:47:21,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3ea343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:21, skipping insertion in model container [2021-08-29 08:47:21,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:21" (2/3) ... [2021-08-29 08:47:21,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3ea343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:21, skipping insertion in model container [2021-08-29 08:47:21,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:21" (3/3) ... [2021-08-29 08:47:21,962 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2021-08-29 08:47:21,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:21,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:22,005 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:22,011 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:22,011 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:47:22,037 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:22,037 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:22,038 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:22,043 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2021-08-29 08:47:22,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:22,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099784319] [2021-08-29 08:47:22,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:22,056 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:22,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:22,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 08:47:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:22,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 08:47:22,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:22,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:22,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:22,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099784319] [2021-08-29 08:47:22,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099784319] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:22,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:22,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 08:47:22,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870163320] [2021-08-29 08:47:22,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:22,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:22,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:22,325 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:22,617 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2021-08-29 08:47:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:22,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 08:47:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:22,625 INFO L225 Difference]: With dead ends: 58 [2021-08-29 08:47:22,625 INFO L226 Difference]: Without dead ends: 27 [2021-08-29 08:47:22,627 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:22,631 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.86ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:22,632 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 2.16ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 275.86ms Time] [2021-08-29 08:47:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-29 08:47:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-29 08:47:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-08-29 08:47:22,658 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2021-08-29 08:47:22,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:22,658 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-08-29 08:47:22,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:22,658 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-08-29 08:47:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:47:22,659 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:22,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:22,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:22,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:22,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:22,875 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2021-08-29 08:47:22,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:22,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725367291] [2021-08-29 08:47:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:22,878 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:22,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:22,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:22,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 08:47:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:22,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 08:47:22,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:23,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:23,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:23,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725367291] [2021-08-29 08:47:23,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725367291] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:23,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:23,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:23,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487372141] [2021-08-29 08:47:23,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:23,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:23,097 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:23,488 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2021-08-29 08:47:23,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:23,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 08:47:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:23,489 INFO L225 Difference]: With dead ends: 60 [2021-08-29 08:47:23,489 INFO L226 Difference]: Without dead ends: 50 [2021-08-29 08:47:23,490 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 70.56ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-29 08:47:23,490 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 310.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 343.69ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:23,491 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 226 Unknown, 0 Unchecked, 2.26ms Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 60 Unchecked, 343.69ms Time] [2021-08-29 08:47:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-29 08:47:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 26. [2021-08-29 08:47:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-08-29 08:47:23,499 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2021-08-29 08:47:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:23,499 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-08-29 08:47:23,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-08-29 08:47:23,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:47:23,500 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:23,500 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:23,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:23,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:23,709 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:23,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:23,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1311186430, now seen corresponding path program 1 times [2021-08-29 08:47:23,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:23,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983699350] [2021-08-29 08:47:23,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:23,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:23,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:23,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:23,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 08:47:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:23,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 08:47:23,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:23,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:23,904 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:23,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983699350] [2021-08-29 08:47:23,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983699350] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:23,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:23,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:23,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429365616] [2021-08-29 08:47:23,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:23,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:23,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:23,906 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:24,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:24,112 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-08-29 08:47:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 08:47:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:24,113 INFO L225 Difference]: With dead ends: 50 [2021-08-29 08:47:24,113 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:47:24,114 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 55.28ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-08-29 08:47:24,114 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 179.51ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:24,115 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 135 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 33 Unchecked, 179.51ms Time] [2021-08-29 08:47:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:47:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2021-08-29 08:47:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-08-29 08:47:24,118 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2021-08-29 08:47:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:24,118 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-08-29 08:47:24,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-08-29 08:47:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 08:47:24,119 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:24,119 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:24,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:24,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:24,320 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:24,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2021-08-29 08:47:24,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:24,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459757626] [2021-08-29 08:47:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:24,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:24,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:24,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:24,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 08:47:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:24,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-29 08:47:24,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:24,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:25,561 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:25,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459757626] [2021-08-29 08:47:25,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459757626] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:25,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:25,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-29 08:47:25,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362424691] [2021-08-29 08:47:25,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 08:47:25,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 08:47:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:25,563 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:26,427 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-08-29 08:47:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 08:47:26,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 08:47:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:26,430 INFO L225 Difference]: With dead ends: 34 [2021-08-29 08:47:26,430 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:26,431 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 385.98ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:26,431 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 821.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 856.90ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:26,432 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 856.90ms Time] [2021-08-29 08:47:26,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-08-29 08:47:26,433 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2021-08-29 08:47:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:26,434 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-08-29 08:47:26,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-08-29 08:47:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 08:47:26,434 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:26,434 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:26,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-08-29 08:47:26,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:26,635 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:26,635 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2021-08-29 08:47:26,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:26,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335535020] [2021-08-29 08:47:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:26,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:26,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:26,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:26,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 08:47:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:26,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 08:47:26,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:26,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:26,892 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:26,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335535020] [2021-08-29 08:47:26,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335535020] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:26,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:26,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 08:47:26,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772176640] [2021-08-29 08:47:26,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 08:47:26,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:26,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 08:47:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:26,893 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:27,018 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2021-08-29 08:47:27,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:27,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 08:47:27,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:27,019 INFO L225 Difference]: With dead ends: 46 [2021-08-29 08:47:27,019 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:47:27,020 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.26ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:27,020 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 103.60ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:27,021 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 24 Unchecked, 103.60ms Time] [2021-08-29 08:47:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:47:27,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2021-08-29 08:47:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-08-29 08:47:27,023 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2021-08-29 08:47:27,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:27,023 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-08-29 08:47:27,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-08-29 08:47:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 08:47:27,023 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:27,023 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:27,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:27,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:27,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2021-08-29 08:47:27,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:27,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886092484] [2021-08-29 08:47:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:27,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:27,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:27,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:27,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 08:47:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:27,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:47:27,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:27,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:27,507 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:27,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886092484] [2021-08-29 08:47:27,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886092484] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:27,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:27,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:27,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475489115] [2021-08-29 08:47:27,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:27,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:27,509 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:27,633 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-08-29 08:47:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 08:47:27,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 08:47:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:27,634 INFO L225 Difference]: With dead ends: 34 [2021-08-29 08:47:27,634 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:27,634 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 111.47ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-29 08:47:27,635 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 61.08ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:27,635 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 13 Unchecked, 61.08ms Time] [2021-08-29 08:47:27,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-08-29 08:47:27,637 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2021-08-29 08:47:27,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:27,637 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-08-29 08:47:27,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-08-29 08:47:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 08:47:27,638 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:27,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:27,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:27,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:27,848 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:27,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2021-08-29 08:47:27,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:27,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034619847] [2021-08-29 08:47:27,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:27,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:27,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:27,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:27,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 08:47:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:27,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-29 08:47:27,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:27,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-08-29 08:47:28,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2021-08-29 08:47:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:28,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:28,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:28,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034619847] [2021-08-29 08:47:28,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034619847] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:28,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:28,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-08-29 08:47:28,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496831972] [2021-08-29 08:47:28,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 08:47:28,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:28,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 08:47:28,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-29 08:47:28,145 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:28,206 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-08-29 08:47:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:28,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 08:47:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:28,207 INFO L225 Difference]: With dead ends: 25 [2021-08-29 08:47:28,207 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:28,207 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 72.11ms TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-08-29 08:47:28,208 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 34.80ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:28,208 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.36ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 8 Unchecked, 34.80ms Time] [2021-08-29 08:47:28,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-08-29 08:47:28,210 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2021-08-29 08:47:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:28,210 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-08-29 08:47:28,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-08-29 08:47:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 08:47:28,210 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:28,210 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:28,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:28,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:28,416 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2021-08-29 08:47:28,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:28,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843996605] [2021-08-29 08:47:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:28,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:28,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:28,418 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:28,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-29 08:47:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:28,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-29 08:47:28,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:28,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-08-29 08:47:28,644 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-08-29 08:47:28,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 46 [2021-08-29 08:47:28,823 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-29 08:47:28,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 29 [2021-08-29 08:47:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:28,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:29,258 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:29,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843996605] [2021-08-29 08:47:29,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843996605] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:29,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:29,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 18 [2021-08-29 08:47:29,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412741208] [2021-08-29 08:47:29,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-29 08:47:29,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:29,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-29 08:47:29,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-08-29 08:47:29,259 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:29,307 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-08-29 08:47:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-29 08:47:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 08:47:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:29,308 INFO L225 Difference]: With dead ends: 22 [2021-08-29 08:47:29,308 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 08:47:29,308 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 330.21ms TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-29 08:47:29,309 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 13.43ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:29,309 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.10ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 41 Unchecked, 13.43ms Time] [2021-08-29 08:47:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 08:47:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 08:47:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 08:47:29,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-08-29 08:47:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:29,309 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 08:47:29,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 08:47:29,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 08:47:29,312 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:29,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-08-29 08:47:29,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:29,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 08:47:29,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:29,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:29,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:29,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:29,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:29,643 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2021-08-29 08:47:29,643 INFO L858 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-08-29 08:47:29,643 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L854 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short12| (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0.base_16| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0.base_22| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0.base_22|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0.base_16|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) ULTIMATE.start___signbit_float_~x) (= .cse0 .cse1)))) (= .cse2 ULTIMATE.start_floor_float_~x) (= |ULTIMATE.start_floor_float_#res| .cse2) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse2) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven))) [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L861 garLoopResultBuilder]: At program point L86(lines 70 87) the Hoare annotation is: true [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2021-08-29 08:47:29,644 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L854 garLoopResultBuilder]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short12| (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start_floor_float_~x) (= |ULTIMATE.start_floor_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven))) [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L854 garLoopResultBuilder]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 8 24)))) (and (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0.base_16| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0.base_22| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0.base_22|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0.base_16|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_floor_float_#res|) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= .cse1 .cse0)))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse2 ULTIMATE.start_floor_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse2) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven))) [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (fp.neg (_ +zero 8 24)) ULTIMATE.start_floor_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:29,645 INFO L858 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:29,648 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:29,654 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,656 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,657 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,657 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,659 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,659 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,659 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,659 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,660 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,661 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,661 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,661 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:29 BoogieIcfgContainer [2021-08-29 08:47:29,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:29,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:29,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:29,665 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:29,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:21" (3/4) ... [2021-08-29 08:47:29,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 08:47:29,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-08-29 08:47:29,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 08:47:29,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:29,675 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:29,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists v_ULTIMATE.start_floor_float_~#sf_u~0.base_16 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0.base_22 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][22:0]) == \result && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][22:0])) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32]) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:29,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0.base_16 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0.base_22 : bv32 :: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][22:0]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][22:0]) == x) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:29,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:29,695 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 08:47:29,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:29,695 INFO L158 Benchmark]: Toolchain (without parser) took 8475.77ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.0MB in the beginning and 37.7MB in the end (delta: -5.7MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,696 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 33.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:29,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.85ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 51.4MB in the end (delta: -19.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.67ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 49.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,696 INFO L158 Benchmark]: Boogie Preprocessor took 48.97ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:29,697 INFO L158 Benchmark]: RCFGBuilder took 366.34ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 37.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,697 INFO L158 Benchmark]: TraceAbstraction took 7707.68ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 41.0MB in the end (delta: -4.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,697 INFO L158 Benchmark]: Witness Printer took 30.02ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 37.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 08:47:29,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 33.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.85ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 51.4MB in the end (delta: -19.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.67ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 49.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.97ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.34ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 37.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7707.68ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 41.0MB in the end (delta: -4.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Witness Printer took 30.02ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 37.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,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_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,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_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,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_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7643.71ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 20.90ms, AutomataDifference: 2179.53ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 130.06ms, InitialAbstractionConstructionTime: 6.65ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 1868.88ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1729.62ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 179 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 471 mSolverCounterSat, 7.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 170 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1054.93ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 29.75ms AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 225 HoareAnnotationTreeSize, 5 FomulaSimplifications, 81 FormulaSimplificationTreeSizeReduction, 49.36ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 75.55ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 93.52ms SsaConstructionTime, 451.02ms SatisfiabilityAnalysisTime, 2769.32ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 222 ConstructedInterpolants, 50 QuantifiedInterpolants, 2023 SizeOfPredicates, 50 NumberOfNonLiveVariables, 422 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2021-08-29 08:47:29,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 18]: Loop Invariant [2021-08-29 08:47:29,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,708 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 61]: Loop Invariant [2021-08-29 08:47:29,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0.base_16 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0.base_22 : bv32 :: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][22:0]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][22:0]) == x) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,712 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:29,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:29,713 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\exists v_ULTIMATE.start_floor_float_~#sf_u~0.base_16 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0.base_22 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32][22:0]) == \result && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32][22:0])) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#gf_u~0.base_22][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0.base_16][0bv32]) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-08-29 08:47:29,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...