./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0832b.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 712005727f62c46a009e5aa995b5d1c386dc6cd1 .............................................................................................................................................................................................................................................................................................................. 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0832b.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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:37:23,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:37:23,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:37:23,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:37:23,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:37:23,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:37:23,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:37:23,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:37:23,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:37:23,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:37:23,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:37:23,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:37:23,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:37:23,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:37:23,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:37:23,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:37:23,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:37:23,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:37:23,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:37:23,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:37:23,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:37:23,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:37:23,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:37:23,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:37:23,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:37:23,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:37:23,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:37:23,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:37:23,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:37:23,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:37:23,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:37:23,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:37:23,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:37:23,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:37:23,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:37:23,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:37:23,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:37:23,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:37:23,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:37:23,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:37:23,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:37:23,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:37:23,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:37:23,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:37:23,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:37:23,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:37:23,169 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:37:23,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:37:23,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:37:23,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:37:23,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:37:23,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:37:23,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:37:23,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:37:23,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:37:23,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:37:23,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:37:23,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:37:23,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:23,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:37:23,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:37:23,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:37:23,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:37:23,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:37:23,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:37:23,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:37:23,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(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 -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-10-20 00:37:23,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:37:23,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:37:23,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:37:23,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:37:23,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:37:23,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-10-20 00:37:23,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e08c732/5c27550884a743e4bc9961e11bb7fa66/FLAGe530acb1e [2020-10-20 00:37:23,910 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:37:23,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-10-20 00:37:23,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e08c732/5c27550884a743e4bc9961e11bb7fa66/FLAGe530acb1e [2020-10-20 00:37:24,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e08c732/5c27550884a743e4bc9961e11bb7fa66 [2020-10-20 00:37:24,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:37:24,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:37:24,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:24,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:37:24,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:37:24,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784d15e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24, skipping insertion in model container [2020-10-20 00:37:24,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:37:24,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:37:24,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:24,660 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:37:24,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:24,713 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:37:24,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24 WrapperNode [2020-10-20 00:37:24,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:24,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:24,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:37:24,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:37:24,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:24,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:37:24,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:37:24,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:37:24,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... [2020-10-20 00:37:24,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:37:24,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:37:24,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:37:24,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:37:24,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:37:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:37:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:37:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:37:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:37:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:37:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:37:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:37:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:37:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:37:25,315 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:37:25,316 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:37:25,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:25 BoogieIcfgContainer [2020-10-20 00:37:25,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:37:25,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:37:25,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:37:25,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:37:25,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:37:24" (1/3) ... [2020-10-20 00:37:25,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@958dd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:25, skipping insertion in model container [2020-10-20 00:37:25,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:24" (2/3) ... [2020-10-20 00:37:25,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@958dd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:25, skipping insertion in model container [2020-10-20 00:37:25,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:25" (3/3) ... [2020-10-20 00:37:25,327 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-10-20 00:37:25,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:37:25,343 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:37:25,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:37:25,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:37:25,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:37:25,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:37:25,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:37:25,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:37:25,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:37:25,375 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:37:25,375 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:37:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-20 00:37:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:37:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:25,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:25,401 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:25,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:25,407 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-10-20 00:37:25,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:37:25,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095485799] [2020-10-20 00:37:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:37:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:25,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095485799] [2020-10-20 00:37:25,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:25,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:37:25,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601610635] [2020-10-20 00:37:25,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:37:25,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:37:25,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:37:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:25,587 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-10-20 00:37:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:25,605 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-10-20 00:37:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:37:25,606 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 00:37:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:25,618 INFO L225 Difference]: With dead ends: 71 [2020-10-20 00:37:25,618 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 00:37:25,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 00:37:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 00:37:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 00:37:25,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-10-20 00:37:25,659 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-10-20 00:37:25,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:25,660 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-10-20 00:37:25,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:37:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-10-20 00:37:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:37:25,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:25,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:25,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:37:25,662 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:25,662 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-10-20 00:37:25,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:37:25,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286035581] [2020-10-20 00:37:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:37:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:37:25,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:37:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:37:25,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:37:25,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:37:25,824 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:37:25,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:37:25,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:37:25 BoogieIcfgContainer [2020-10-20 00:37:25,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:37:25,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:37:25,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:37:25,891 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:37:25,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:25" (3/4) ... [2020-10-20 00:37:25,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:37:25,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:37:25,903 INFO L168 Benchmark]: Toolchain (without parser) took 1610.32 ms. Allocated memory was 34.6 MB in the beginning and 47.2 MB in the end (delta: 12.6 MB). Free memory was 11.6 MB in the beginning and 17.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,904 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.08 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 10.8 MB in the beginning and 20.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 43.5 MB. Free memory was 20.2 MB in the beginning and 17.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,907 INFO L168 Benchmark]: Boogie Preprocessor took 37.26 ms. Allocated memory is still 43.5 MB. Free memory was 17.9 MB in the beginning and 15.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,908 INFO L168 Benchmark]: RCFGBuilder took 522.05 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 15.9 MB in the beginning and 16.1 MB in the end (delta: -173.9 kB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,912 INFO L168 Benchmark]: TraceAbstraction took 569.96 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 15.6 MB in the beginning and 17.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 64.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,913 INFO L168 Benchmark]: Witness Printer took 7.63 ms. Allocated memory is still 47.2 MB. Free memory was 17.7 MB in the beginning and 17.3 MB in the end (delta: 323.6 kB). Peak memory consumption was 323.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:37:25,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 418.08 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 10.8 MB in the beginning and 20.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 43.5 MB. Free memory was 20.2 MB in the beginning and 17.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 37.26 ms. Allocated memory is still 43.5 MB. Free memory was 17.9 MB in the beginning and 15.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 522.05 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 15.9 MB in the beginning and 16.1 MB in the end (delta: -173.9 kB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 569.96 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 15.6 MB in the beginning and 17.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 64.1 kB. Max. memory is 14.3 GB. * Witness Printer took 7.63 ms. Allocated memory is still 47.2 MB. Free memory was 17.7 MB in the beginning and 17.3 MB in the end (delta: 323.6 kB). Peak memory consumption was 323.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L3] __assert_fail("0", "float_req_bl_0832b.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:37:28,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:37:28,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:37:28,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:37:28,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:37:28,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:37:28,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:37:28,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:37:28,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:37:28,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:37:28,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:37:28,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:37:28,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:37:28,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:37:28,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:37:28,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:37:28,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:37:28,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:37:28,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:37:28,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:37:28,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:37:28,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:37:28,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:37:28,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:37:28,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:37:28,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:37:28,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:37:28,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:37:28,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:37:28,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:37:28,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:37:28,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:37:28,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:37:28,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:37:28,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:37:28,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:37:28,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:37:28,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:37:28,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:37:28,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:37:28,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:37:28,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:37:28,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:37:28,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:37:28,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:37:28,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:37:28,165 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:37:28,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:37:28,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:37:28,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:37:28,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:37:28,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:37:28,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:37:28,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:37:28,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:37:28,168 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:37:28,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:37:28,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:37:28,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:37:28,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:37:28,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:37:28,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:37:28,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:37:28,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:37:28,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:28,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:37:28,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:37:28,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:37:28,171 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:37:28,172 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:37:28,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:37:28,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:37:28,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:37:28,173 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(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 -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-10-20 00:37:28,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:37:28,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:37:28,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:37:28,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:37:28,399 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:37:28,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-10-20 00:37:28,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961080b5a/eeffb1a0241d4e57b1879b58c4df4efa/FLAG83ff0e5d8 [2020-10-20 00:37:28,990 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:37:28,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-10-20 00:37:28,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961080b5a/eeffb1a0241d4e57b1879b58c4df4efa/FLAG83ff0e5d8 [2020-10-20 00:37:29,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961080b5a/eeffb1a0241d4e57b1879b58c4df4efa [2020-10-20 00:37:29,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:37:29,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:37:29,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:29,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:37:29,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:37:29,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fafa94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29, skipping insertion in model container [2020-10-20 00:37:29,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:37:29,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:37:29,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:29,799 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:37:29,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:29,861 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:37:29,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29 WrapperNode [2020-10-20 00:37:29,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:29,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:29,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:37:29,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:37:29,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:29,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:37:29,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:37:29,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:37:29,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... [2020-10-20 00:37:29,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:37:29,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:37:29,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:37:29,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:37:29,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:37:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:37:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:37:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:37:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:37:38,561 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:37:38,562 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:37:38,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38 BoogieIcfgContainer [2020-10-20 00:37:38,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:37:38,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:37:38,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:37:38,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:37:38,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:37:29" (1/3) ... [2020-10-20 00:37:38,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c31ea89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:38, skipping insertion in model container [2020-10-20 00:37:38,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:29" (2/3) ... [2020-10-20 00:37:38,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c31ea89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:38, skipping insertion in model container [2020-10-20 00:37:38,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38" (3/3) ... [2020-10-20 00:37:38,573 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-10-20 00:37:38,584 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:37:38,591 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:37:38,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:37:38,628 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:37:38,628 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:37:38,628 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:37:38,629 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:37:38,629 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:37:38,629 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:37:38,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:37:38,629 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:37:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-20 00:37:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:37:38,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:38,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:38,652 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:38,658 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-10-20 00:37:38,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:38,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71227089] [2020-10-20 00:37:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:37:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:39,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:37:39,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:39,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:39,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71227089] [2020-10-20 00:37:39,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:39,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:37:39,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130127964] [2020-10-20 00:37:39,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:37:39,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:39,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:37:39,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:39,197 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-10-20 00:37:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:39,215 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-10-20 00:37:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:37:39,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 00:37:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:39,224 INFO L225 Difference]: With dead ends: 71 [2020-10-20 00:37:39,224 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 00:37:39,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 00:37:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 00:37:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 00:37:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-10-20 00:37:39,263 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-10-20 00:37:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:39,264 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-10-20 00:37:39,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:37:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-10-20 00:37:39,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:37:39,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:39,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:39,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:37:39,473 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:39,474 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-10-20 00:37:39,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:39,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898066059] [2020-10-20 00:37:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:37:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:39,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:37:39,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:40,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:40,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898066059] [2020-10-20 00:37:40,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:40,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:37:40,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743717112] [2020-10-20 00:37:40,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:37:40,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:37:40,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:37:40,093 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2020-10-20 00:37:47,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:47,991 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-10-20 00:37:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:37:48,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-10-20 00:37:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:48,108 INFO L225 Difference]: With dead ends: 54 [2020-10-20 00:37:48,108 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 00:37:48,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:37:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 00:37:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-10-20 00:37:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 00:37:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-20 00:37:48,120 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2020-10-20 00:37:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:48,121 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-20 00:37:48,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:37:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-20 00:37:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:37:48,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:48,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:48,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:37:48,338 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2020-10-20 00:37:48,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:48,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140048410] [2020-10-20 00:37:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:37:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:48,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:37:48,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:48,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:37:49,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140048410] [2020-10-20 00:37:49,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:49,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 00:37:49,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920697407] [2020-10-20 00:37:49,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:37:49,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:49,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:37:49,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:37:49,696 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-10-20 00:38:04,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:38:04,743 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-20 00:38:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:38:04,744 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-10-20 00:38:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:38:04,745 INFO L225 Difference]: With dead ends: 33 [2020-10-20 00:38:04,745 INFO L226 Difference]: Without dead ends: 29 [2020-10-20 00:38:04,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:38:04,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-20 00:38:04,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-20 00:38:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 00:38:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-20 00:38:04,754 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-10-20 00:38:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:38:04,754 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-20 00:38:04,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:38:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-20 00:38:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 00:38:04,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:38:04,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:38:04,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:38:04,963 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:38:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:38:04,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2020-10-20 00:38:04,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:38:04,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118188423] [2020-10-20 00:38:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:38:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:38:06,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:38:06,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:38:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:38:06,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:38:06,675 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:38:06,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:38:06,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118188423] [2020-10-20 00:38:06,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:38:06,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:38:06,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534295683] [2020-10-20 00:38:06,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:38:06,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:38:06,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:38:06,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:38:06,795 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-10-20 00:38:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:38:06,939 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-20 00:38:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:38:06,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 00:38:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:38:06,943 INFO L225 Difference]: With dead ends: 29 [2020-10-20 00:38:06,943 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:38:06,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:38:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:38:06,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:38:06,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:38:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:38:06,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 00:38:06,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:38:06,944 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:38:06,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:38:06,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:38:06,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:38:07,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:38:07,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:38:07,240 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-10-20 00:38:07,241 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-10-20 00:38:07,241 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-10-20 00:38:07,241 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-10-20 00:38:07,241 INFO L277 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2020-10-20 00:38:07,241 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-20 00:38:07,241 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-10-20 00:38:07,242 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-10-20 00:38:07,243 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-10-20 00:38:07,243 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-10-20 00:38:07,244 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse1) (= (fp.add currentRoundingMode .cse1 .cse0) |ULTIMATE.start___ieee754_expf_#res|))) [2020-10-20 00:38:07,245 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-10-20 00:38:07,245 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-20 00:38:07,245 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-10-20 00:38:07,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,265 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,266 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:38:07 BoogieIcfgContainer [2020-10-20 00:38:07,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:38:07,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:38:07,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:38:07,270 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:38:07,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38" (3/4) ... [2020-10-20 00:38:07,275 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:38:07,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 00:38:07,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:38:07,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:38:07,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:38:07,319 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result [2020-10-20 00:38:07,374 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:38:07,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:38:07,376 INFO L168 Benchmark]: Toolchain (without parser) took 37948.32 ms. Allocated memory was 38.8 MB in the beginning and 49.3 MB in the end (delta: 10.5 MB). Free memory was 16.1 MB in the beginning and 27.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,377 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 30.4 MB. Free memory was 5.6 MB in the beginning and 5.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.80 ms. Allocated memory was 38.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). Free memory was 15.2 MB in the beginning and 11.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 39.8 MB. Free memory was 11.2 MB in the beginning and 9.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,378 INFO L168 Benchmark]: Boogie Preprocessor took 49.96 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 9.0 MB in the beginning and 22.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,379 INFO L168 Benchmark]: RCFGBuilder took 8601.65 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 22.3 MB in the beginning and 25.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,379 INFO L168 Benchmark]: TraceAbstraction took 28704.39 ms. Allocated memory was 43.0 MB in the beginning and 48.8 MB in the end (delta: 5.8 MB). Free memory was 25.0 MB in the beginning and 13.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,380 INFO L168 Benchmark]: Witness Printer took 104.53 ms. Allocated memory was 48.8 MB in the beginning and 49.3 MB in the end (delta: 524.3 kB). Free memory was 13.3 MB in the beginning and 27.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:38:07,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 30.4 MB. Free memory was 5.6 MB in the beginning and 5.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 427.80 ms. Allocated memory was 38.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). Free memory was 15.2 MB in the beginning and 11.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 39.8 MB. Free memory was 11.2 MB in the beginning and 9.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 49.96 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 9.0 MB in the beginning and 22.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.2 kB. Max. memory is 14.3 GB. * RCFGBuilder took 8601.65 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 22.3 MB in the beginning and 25.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 28704.39 ms. Allocated memory was 43.0 MB in the beginning and 48.8 MB in the end (delta: 5.8 MB). Free memory was 25.0 MB in the beginning and 13.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. * Witness Printer took 104.53 ms. Allocated memory was 48.8 MB in the beginning and 49.3 MB in the end (delta: 524.3 kB). Free memory was 13.3 MB in the beginning and 27.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-10-20 00:38:07,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 43]: Loop Invariant [2020-10-20 00:38:07,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,400 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:38:07,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:38:07,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 191 SDs, 0 SdLazy, 67 SolverSat, 5 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 22.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9890 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...