./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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 ad220425e59782d2842875bc5488a6e9ea4ef5ae .................................................................................................................................................................................................................................... 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/floats-cbmc-regression/float-no-simp7.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 ad220425e59782d2842875bc5488a6e9ea4ef5ae ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:34:28,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:34:28,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:34:28,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:34:28,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:34:28,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:34:28,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:34:28,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:34:28,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:34:28,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:34:28,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:34:28,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:34:28,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:34:28,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:34:28,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:34:28,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:34:28,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:34:28,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:34:28,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:34:28,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:34:28,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:34:28,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:34:28,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:34:28,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:34:28,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:34:28,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:34:28,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:34:28,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:34:28,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:34:28,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:34:28,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:34:28,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:34:28,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:34:28,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:34:28,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:34:28,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:34:28,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:34:28,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:34:28,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:34:28,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:34:28,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:34:28,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:34:28,831 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:34:28,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:34:28,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:34:28,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:34:28,833 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:34:28,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:34:28,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:34:28,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:34:28,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:34:28,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:34:28,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:34:28,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:34:28,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:34:28,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:34:28,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:34:28,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:34:28,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:34:28,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:34:28,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:34:28,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:34:28,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:34:28,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:34:28,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:34:28,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:34:28,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-10-25 21:34:29,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:34:29,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:34:29,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:34:29,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:34:29,277 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:34:29,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-25 21:34:29,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10cc96ca/3280d2f89f004d689ed0af00d27691e9/FLAG8439b9e65 [2020-10-25 21:34:29,890 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:34:29,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-25 21:34:29,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10cc96ca/3280d2f89f004d689ed0af00d27691e9/FLAG8439b9e65 [2020-10-25 21:34:30,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10cc96ca/3280d2f89f004d689ed0af00d27691e9 [2020-10-25 21:34:30,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:34:30,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:34:30,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:34:30,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:34:30,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:34:30,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b078eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30, skipping insertion in model container [2020-10-25 21:34:30,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:34:30,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:34:30,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:34:30,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:34:30,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:34:30,592 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:34:30,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30 WrapperNode [2020-10-25 21:34:30,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:34:30,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:34:30,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:34:30,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:34:30,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:34:30,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:34:30,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:34:30,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:34:30,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... [2020-10-25 21:34:30,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:34:30,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:34:30,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:34:30,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:34:30,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:34:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:34:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:34:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:34:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:34:30,957 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:34:30,957 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-25 21:34:30,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:30 BoogieIcfgContainer [2020-10-25 21:34:30,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:34:30,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:34:30,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:34:30,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:34:30,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:34:30" (1/3) ... [2020-10-25 21:34:30,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121c97d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:34:30, skipping insertion in model container [2020-10-25 21:34:30,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:30" (2/3) ... [2020-10-25 21:34:30,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121c97d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:34:30, skipping insertion in model container [2020-10-25 21:34:30,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:30" (3/3) ... [2020-10-25 21:34:30,969 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-10-25 21:34:30,982 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:34:30,987 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:34:31,004 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:34:31,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:34:31,061 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:34:31,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:34:31,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:34:31,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:34:31,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:34:31,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:34:31,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:34:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:34:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:34:31,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:34:31,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:34:31,107 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:34:31,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:34:31,116 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-25 21:34:31,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:34:31,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401062608] [2020-10-25 21:34:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:34:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:34:31,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:34:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:34:31,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:34:31,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:34:31,291 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:34:31,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:34:31,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:34:31 BoogieIcfgContainer [2020-10-25 21:34:31,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:34:31,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:34:31,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:34:31,319 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:34:31,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:30" (3/4) ... [2020-10-25 21:34:31,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:34:31,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:34:31,327 INFO L168 Benchmark]: Toolchain (without parser) took 1037.50 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.6 MB in the beginning and 39.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 790.4 kB. Max. memory is 16.1 GB. [2020-10-25 21:34:31,329 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 36.8 MB in the beginning and 36.8 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:34:31,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.38 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 30.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:31,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.93 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 29.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:31,332 INFO L168 Benchmark]: Boogie Preprocessor took 21.14 ms. Allocated memory is still 50.3 MB. Free memory was 28.8 MB in the beginning and 28.0 MB in the end (delta: 847.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:34:31,333 INFO L168 Benchmark]: RCFGBuilder took 302.56 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 29.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:31,334 INFO L168 Benchmark]: TraceAbstraction took 356.52 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 40.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 326.5 kB. Max. memory is 16.1 GB. [2020-10-25 21:34:31,335 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 39.4 MB in the end (delta: 532.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:34:31,340 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 50.3 MB. Free memory was 36.8 MB in the beginning and 36.8 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.38 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 30.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.93 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 29.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.14 ms. Allocated memory is still 50.3 MB. Free memory was 28.8 MB in the beginning and 28.0 MB in the end (delta: 847.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.56 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 29.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 356.52 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 40.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 326.5 kB. Max. memory is 16.1 GB. * Witness Printer took 6.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 39.4 MB in the end (delta: 532.8 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 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L3] __assert_fail("0", "float-no-simp7.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 0.2.0-5485861 [2020-10-25 21:34:33,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:34:33,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:34:33,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:34:33,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:34:33,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:34:33,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:34:33,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:34:33,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:34:33,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:34:33,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:34:33,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:34:33,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:34:33,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:34:33,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:34:33,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:34:33,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:34:33,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:34:33,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:34:33,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:34:33,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:34:33,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:34:33,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:34:33,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:34:33,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:34:33,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:34:33,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:34:33,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:34:33,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:34:33,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:34:33,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:34:33,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:34:33,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:34:33,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:34:33,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:34:33,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:34:33,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:34:33,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:34:33,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:34:33,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:34:33,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:34:33,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:34:33,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:34:33,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:34:33,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:34:33,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:34:33,936 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:34:33,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:34:33,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:34:33,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:34:33,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:34:33,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:34:33,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:34:33,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:34:33,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:34:33,938 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:34:33,938 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:34:33,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:34:33,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:34:33,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:34:33,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:34:33,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:34:33,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:34:33,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:34:33,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:34:33,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:34:33,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:34:33,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:34:33,941 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:34:33,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:34:33,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:34:33,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:34:33,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:34:33,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-10-25 21:34:34,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:34:34,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:34:34,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:34:34,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:34:34,389 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:34:34,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-25 21:34:34,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a5de001/7ec51595686346a89a6a18b60a1d8abb/FLAGcb01c8a5f [2020-10-25 21:34:35,007 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:34:35,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-25 21:34:35,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a5de001/7ec51595686346a89a6a18b60a1d8abb/FLAGcb01c8a5f [2020-10-25 21:34:35,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a5de001/7ec51595686346a89a6a18b60a1d8abb [2020-10-25 21:34:35,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:34:35,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:34:35,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:34:35,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:34:35,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:34:35,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b83f8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35, skipping insertion in model container [2020-10-25 21:34:35,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:34:35,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:34:35,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:34:35,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:34:35,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:34:35,714 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:34:35,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35 WrapperNode [2020-10-25 21:34:35,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:34:35,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:34:35,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:34:35,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:34:35,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:34:35,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:34:35,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:34:35,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:34:35,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... [2020-10-25 21:34:35,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:34:35,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:34:35,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:34:35,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:34:35,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:34:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:34:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:34:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:34:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:34:36,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:34:36,261 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-25 21:34:36,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:36 BoogieIcfgContainer [2020-10-25 21:34:36,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:34:36,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:34:36,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:34:36,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:34:36,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:34:35" (1/3) ... [2020-10-25 21:34:36,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780ca151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:34:36, skipping insertion in model container [2020-10-25 21:34:36,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:34:35" (2/3) ... [2020-10-25 21:34:36,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780ca151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:34:36, skipping insertion in model container [2020-10-25 21:34:36,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:36" (3/3) ... [2020-10-25 21:34:36,273 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-10-25 21:34:36,287 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:34:36,293 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:34:36,307 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:34:36,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:34:36,338 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:34:36,339 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:34:36,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:34:36,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:34:36,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:34:36,340 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:34:36,340 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:34:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:34:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:34:36,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:34:36,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:34:36,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:34:36,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:34:36,371 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-25 21:34:36,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:34:36,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203312243] [2020-10-25 21:34:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:34:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:34:36,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 21:34:36,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:34:36,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:34:36,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:34:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:34:36,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203312243] [2020-10-25 21:34:36,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:34:36,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-25 21:34:36,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640050213] [2020-10-25 21:34:36,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:34:36,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:34:36,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:34:36,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:34:36,710 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-25 21:34:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:34:36,821 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-25 21:34:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:34:36,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-25 21:34:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:34:36,831 INFO L225 Difference]: With dead ends: 14 [2020-10-25 21:34:36,831 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:34:36,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 21:34:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:34:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:34:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:34:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:34:36,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-25 21:34:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:34:36,861 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:34:36,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:34:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:34:36,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:34:37,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:34:37,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:34:37,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:34:37,135 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:34:37,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:34:37,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:34:37,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:34:37,136 INFO L270 CegarLoopResult]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))) ULTIMATE.start_main_~result~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_main_~target~0 (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))))) [2020-10-25 21:34:37,137 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-25 21:34:37,137 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-25 21:34:37,137 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:34:37,137 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:34:37,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:34:37,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:34:37,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:34:37 BoogieIcfgContainer [2020-10-25 21:34:37,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:34:37,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:34:37,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:34:37,176 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:34:37,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:34:36" (3/4) ... [2020-10-25 21:34:37,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:34:37,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 21:34:37,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 21:34:37,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 21:34:37,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:34:37,230 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:34:37,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:34:37,233 INFO L168 Benchmark]: Toolchain (without parser) took 1826.05 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.2 MB in the beginning and 38.1 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:34:37,233 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 24.3 MB in the beginning and 24.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:34:37,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.54 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.5 MB in the beginning and 32.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 58.7 MB. Free memory was 32.9 MB in the beginning and 31.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,236 INFO L168 Benchmark]: Boogie Preprocessor took 26.98 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 30.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,237 INFO L168 Benchmark]: RCFGBuilder took 480.56 ms. Allocated memory is still 58.7 MB. Free memory was 30.3 MB in the beginning and 35.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,238 INFO L168 Benchmark]: TraceAbstraction took 910.35 ms. Allocated memory is still 58.7 MB. Free memory was 34.7 MB in the beginning and 40.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,239 INFO L168 Benchmark]: Witness Printer took 54.22 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 38.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:34:37,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 24.3 MB in the beginning and 24.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.54 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.5 MB in the beginning and 32.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 58.7 MB. Free memory was 32.9 MB in the beginning and 31.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.98 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 30.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 480.56 ms. Allocated memory is still 58.7 MB. Free memory was 30.3 MB in the beginning and 35.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 910.35 ms. Allocated memory is still 58.7 MB. Free memory was 34.7 MB in the beginning and 40.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 54.22 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 38.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 * 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: 5]: Loop Invariant [2020-10-25 21:34:37,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:34:37,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:34:37,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) == result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && target == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 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! Received shutdown request...