./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/Rump_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_float.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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 .................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_float.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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:58:13,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:58:13,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:58:13,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:58:13,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:58:13,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:58:13,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:58:13,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:58:13,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:58:13,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:58:13,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:58:13,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:58:13,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:58:13,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:58:13,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:58:13,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:58:13,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:58:14,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:58:14,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:58:14,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:58:14,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:58:14,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:58:14,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:58:14,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:58:14,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:58:14,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:58:14,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:58:14,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:58:14,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:58:14,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:58:14,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:58:14,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:58:14,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:58:14,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:58:14,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:58:14,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:58:14,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:58:14,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:58:14,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:58:14,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:58:14,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:58:14,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:58:14,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:58:14,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:58:14,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:58:14,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:58:14,113 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:58:14,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:58:14,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:58:14,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:58:14,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:58:14,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:58:14,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:58:14,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:58:14,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:58:14,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:58:14,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:58:14,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:58:14,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:58:14,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:58:14,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:58:14,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:58:14,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:58:14,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:58:14,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:58:14,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:58:14,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:58:14,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:58:14,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:58:14,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:58:14,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:58:14,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-10-24 21:58:14,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:58:14,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:58:14,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:58:14,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:58:14,600 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:58:14,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-24 21:58:14,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8cce440/2c92fec28d894cc68e67bbe0b4e21c83/FLAG077400dad [2020-10-24 21:58:15,379 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:58:15,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-24 21:58:15,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8cce440/2c92fec28d894cc68e67bbe0b4e21c83/FLAG077400dad [2020-10-24 21:58:15,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8cce440/2c92fec28d894cc68e67bbe0b4e21c83 [2020-10-24 21:58:15,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:58:15,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:58:15,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:58:15,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:58:15,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:58:15,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:58:15" (1/1) ... [2020-10-24 21:58:15,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da0e2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:15, skipping insertion in model container [2020-10-24 21:58:15,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:58:15" (1/1) ... [2020-10-24 21:58:15,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:58:15,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:58:15,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:58:16,007 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:58:16,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:58:16,046 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:58:16,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16 WrapperNode [2020-10-24 21:58:16,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:58:16,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:58:16,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:58:16,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:58:16,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:58:16,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:58:16,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:58:16,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:58:16,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (1/1) ... [2020-10-24 21:58:16,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:58:16,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:58:16,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:58:16,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:58:16,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (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 [2020-10-24 21:58:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:58:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:58:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 21:58:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:58:16,551 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:58:16,551 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 21:58:16,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:16 BoogieIcfgContainer [2020-10-24 21:58:16,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:58:16,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:58:16,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:58:16,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:58:16,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:58:15" (1/3) ... [2020-10-24 21:58:16,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f94e48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:58:16, skipping insertion in model container [2020-10-24 21:58:16,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:16" (2/3) ... [2020-10-24 21:58:16,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f94e48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:58:16, skipping insertion in model container [2020-10-24 21:58:16,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:16" (3/3) ... [2020-10-24 21:58:16,574 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-10-24 21:58:16,605 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:58:16,619 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:58:16,650 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:58:16,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:58:16,720 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:58:16,720 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:58:16,720 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:58:16,720 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:58:16,720 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:58:16,720 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:58:16,721 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:58:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 21:58:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:58:16,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:58:16,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:58:16,745 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:58:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:58:16,753 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 21:58:16,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:58:16,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848922996] [2020-10-24 21:58:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:58:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:58:16,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:58:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:58:16,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:58:16,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 21:58:16,963 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 21:58:16,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 21:58:16,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:16 BoogieIcfgContainer [2020-10-24 21:58:16,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:58:16,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:58:16,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:58:16,993 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:58:16,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:16" (3/4) ... [2020-10-24 21:58:17,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 21:58:17,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:58:17,006 INFO L168 Benchmark]: Toolchain (without parser) took 1261.41 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.0 MB in the beginning and 27.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:17,007 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 27.6 MB in the beginning and 27.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:17,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.83 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 36.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:17,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.44 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 35.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:17,010 INFO L168 Benchmark]: Boogie Preprocessor took 24.66 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 34.2 MB in the end (delta: 969.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:17,011 INFO L168 Benchmark]: RCFGBuilder took 439.90 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 39.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:17,012 INFO L168 Benchmark]: TraceAbstraction took 435.17 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 27.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:17,013 INFO L168 Benchmark]: Witness Printer took 11.13 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 233.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:17,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 27.6 MB in the beginning and 27.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.83 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 36.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.44 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 35.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.66 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 34.2 MB in the end (delta: 969.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 439.90 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 39.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 435.17 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 27.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 11.13 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 233.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x,y,r; [L11] x = 77617.f [L12] y = 33096.f [L13] r = 333.75f * y*y*y*y*y*y + x*x * (11.0f * x*x*y*y - y*y*y*y*y*y - 121.0f * y*y*y*y - 2.0f) + 5.5f * y*y*y*y*y*y*y*y + x / (2.f * y) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "Rump_float.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:58:19,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:58:19,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:58:19,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:58:19,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:58:19,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:58:19,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:58:19,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:58:19,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:58:19,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:58:19,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:58:19,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:58:19,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:58:19,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:58:19,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:58:19,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:58:19,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:58:19,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:58:19,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:58:19,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:58:19,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:58:19,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:58:19,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:58:19,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:58:19,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:58:19,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:58:19,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:58:19,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:58:19,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:58:19,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:58:19,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:58:19,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:58:19,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:58:19,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:58:19,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:58:19,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:58:19,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:58:19,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:58:19,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:58:19,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:58:19,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:58:19,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:58:19,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:58:19,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:58:19,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:58:19,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:58:19,980 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:58:19,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:58:19,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:58:19,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:58:19,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:58:19,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:58:19,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:58:19,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:58:19,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:58:19,982 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:58:19,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:58:19,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:58:19,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:58:19,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:58:19,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:58:19,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:58:19,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:58:19,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:58:19,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:58:19,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:58:19,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:58:19,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:58:19,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:58:19,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:58:19,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:58:19,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:58:19,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:58:19,986 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-10-24 21:58:20,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:58:20,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:58:20,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:58:20,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:58:20,506 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:58:20,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-24 21:58:20,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c373e1dd/437a0d8c54714fa69b2906ab90161bcf/FLAGf600f1b74 [2020-10-24 21:58:21,294 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:58:21,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-24 21:58:21,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c373e1dd/437a0d8c54714fa69b2906ab90161bcf/FLAGf600f1b74 [2020-10-24 21:58:21,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c373e1dd/437a0d8c54714fa69b2906ab90161bcf [2020-10-24 21:58:21,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:58:21,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:58:21,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:58:21,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:58:21,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:58:21,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:58:21" (1/1) ... [2020-10-24 21:58:21,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7371353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:21, skipping insertion in model container [2020-10-24 21:58:21,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:58:21" (1/1) ... [2020-10-24 21:58:21,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:58:21,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:58:21,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:58:21,959 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:58:22,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:58:22,030 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:58:22,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22 WrapperNode [2020-10-24 21:58:22,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:58:22,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:58:22,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:58:22,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:58:22,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:58:22,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:58:22,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:58:22,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:58:22,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (1/1) ... [2020-10-24 21:58:22,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:58:22,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:58:22,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:58:22,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:58:22,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (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 [2020-10-24 21:58:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:58:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:58:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:58:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:58:25,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:58:25,006 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 21:58:25,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:25 BoogieIcfgContainer [2020-10-24 21:58:25,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:58:25,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:58:25,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:58:25,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:58:25,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:58:21" (1/3) ... [2020-10-24 21:58:25,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c5e8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:58:25, skipping insertion in model container [2020-10-24 21:58:25,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:58:22" (2/3) ... [2020-10-24 21:58:25,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c5e8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:58:25, skipping insertion in model container [2020-10-24 21:58:25,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:25" (3/3) ... [2020-10-24 21:58:25,017 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-10-24 21:58:25,030 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:58:25,036 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:58:25,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:58:25,079 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:58:25,079 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:58:25,080 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:58:25,080 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:58:25,080 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:58:25,080 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:58:25,080 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:58:25,080 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:58:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 21:58:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:58:25,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:58:25,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:58:25,102 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:58:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:58:25,108 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 21:58:25,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:58:25,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651122855] [2020-10-24 21:58:25,124 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 [2020-10-24 21:58:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:58:27,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 21:58:27,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:58:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:27,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:58:29,507 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-10-24 21:58:31,638 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2020-10-24 21:58:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:31,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651122855] [2020-10-24 21:58:31,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:58:31,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 21:58:31,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765506765] [2020-10-24 21:58:31,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 21:58:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:58:31,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 21:58:31,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2020-10-24 21:58:31,666 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-24 21:58:33,816 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-10-24 21:58:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:33,834 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-24 21:58:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 21:58:33,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-24 21:58:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:33,843 INFO L225 Difference]: With dead ends: 14 [2020-10-24 21:58:33,843 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:58:33,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2020-10-24 21:58:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:58:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:58:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:58:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:58:33,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 21:58:33,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:33,876 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:58:33,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 21:58:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:58:33,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:58:34,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:58:34,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:58:34,145 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:58:34,145 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:58:34,145 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:58:34,145 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:58:34,146 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:58:34,146 INFO L270 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 21:58:34,146 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-24 21:58:34,146 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-24 21:58:34,150 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:58:34,151 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 21:58:34,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:34 BoogieIcfgContainer [2020-10-24 21:58:34,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:58:34,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:58:34,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:58:34,169 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:58:34,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:58:25" (3/4) ... [2020-10-24 21:58:34,173 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:58:34,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 21:58:34,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:58:34,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 21:58:34,186 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:58:34,227 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:58:34,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:58:34,230 INFO L168 Benchmark]: Toolchain (without parser) took 12595.11 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 25.1 MB in the end (delta: -1.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,231 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 46.1 MB. Free memory is still 33.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:34,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.35 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 27.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.76 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 26.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,234 INFO L168 Benchmark]: Boogie Preprocessor took 68.81 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 25.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,235 INFO L168 Benchmark]: RCFGBuilder took 2812.38 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 38.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,236 INFO L168 Benchmark]: TraceAbstraction took 9158.34 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 27.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,237 INFO L168 Benchmark]: Witness Printer took 59.04 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 25.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:34,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 46.1 MB. Free memory is still 33.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.35 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 27.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.76 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 26.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.81 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 25.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2812.38 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 38.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9158.34 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 27.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 59.04 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 25.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...